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Journal articles on the topic 'Jigs and fixtures'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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1

Nor Azinee Said, Muhammad Afiq Roslan, Norsilawati Ngah, Ahmad Joraimee Mohamad, Na’ain Shari, Ummi Nazahah Roslan, Raja Manisa Raja Mamat, et al. "Design and Fabrication of Jig and Fixture for Drilling Machine in the Manufacturing Industry to Improve Time Productivity." Journal of Advanced Research in Applied Sciences and Engineering Technology 29, no. 2 (January 31, 2023): 304–13. http://dx.doi.org/10.37934/araset.29.2.304313.

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Jigs and fixtures were brought to the world of machining, bringing a variety of practical purposes. The concept enables rapid mass production of the same product. Thus, the company will streamline the manufacturing process for each component and boost productivity. At times, the machining operation was carried out entirely by the machine, without jigs and fixtures. As a result, jigs and fixtures were created to expedite the drilling process. The project's objectives are to design a jig and fixture, fabricate it, and analyze the performance on a square block of wood. The structural model for drilling jigs and fixtures was created using the Inventor Professional 2019 Computer-Aided Design Software. The fabrication process used were milling, surface grinding, CNC wire-cut, and drilling machines. Aluminium 1065 was utilized because it is less expensive, lighter than other materials, and easy to process. The result demonstrates that a hole can be drilled quickly using the jigs and fixtures. Preparing the hole with a jig and fixture takes only 1.28 minutes, compared to 3.45 minutes with a table drill. The advantages of this product are the time operation can be reduced and quickly operations on the drilling process.
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Setiawan, Indra, Rohmat Setiawan, Rifdah Zahabiyah, Tri Darma Lestari, Viko Wahyu Triantoro, Vincensius Farrel, Yoga Andriko H., and Windy Yuliana Puspita. "Penerapan Jig & Fixture pada Produksi Massal di Industri Manufaktur." Jurnal Media Teknik dan Sistem Industri 7, no. 2 (September 30, 2023): 104. http://dx.doi.org/10.35194/jmtsi.v7i2.3165.

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The development of the manufacturing industry in the current era of globalization is growing very rapidly as demonstrated by technological advances applied to the modern manufacturing industry. High demand from consumers requires consistency in the quantity, shape and size of a product or component to be evenly distributed in terms of quality. Other problems faced are high production costs, long processing times and unachieved productivity. In line with this, the manufacturing industry, especially mass production, requires a tool to be able to overcome these problems. Jigs & fixtures are one solution that can be used to overcome this problem. This research aims to review papers regarding the application of jigs & fixtures used in mass production systems in the manufacturing industry. This research was carried out using a systematic literature review (SLR), starting from searching, collecting, grouping and gap analysis. As a result of identifying several papers, information was obtained that jigs & fixtures can be applied to reduce production time, reduce production costs, increase productivity and improve product quality. The use of jigs & fixtures also helps reduce preparation time and allows for reduced machining time. Perkembangan industri manufaktur pada era globalisasi saat ini berkembang sangat pesat yang ditunjukkan dengan kemajuan teknologi yang diterapkan pada industri manufaktur modern. Tingginya permintaan dari konsumen mengharuskan konsistensi jumlah, bentuk, dan ukuran suatu produk atau komponen harus merata dari segi kualitas. Permasalahan lainnya yang dihadapi yaitu tingginya biaya produksi, waktu proses yang panjang dan produktivitas yang tidak tercapai. Sejalan dengan hal itu, industri manufaktur khususnya pada produksi massal diperlukan sebuah alat untuk dapat mengatasi permasalahan tersebut. Jig & fixture adalah salah satu solusi yang dapat digunakan untuk mengatasi masalah tersebut. Penelitian ini bertujuan untuk meninjau artikel mengenai penerapan jig & fixture yang digunakan pada sistem produksi massal di industri manufaktur beserta manfaatnya. Penelitian ini dilakukan dengan menggunakan sistematic literature review (SLR) berbasis statistik deskriptif yaitu dimulai dari penelusuran, pengumpulan, pengelompokan dan analisis kesenjangan. Hasil dari identifikasi beberapa artikel didapatkan informasi bahwa jig & fixture dapat diaplikasikan untuk mengurangi waktu produksi, mengurangi biaya produksi, meningkatkan produktivitas, dan meningkatkan kualitas produk. Penggunaan jig & fixture juga membantu mengurangi waktu persiapan dan memungkinkan pengurangan waktu permesinan.
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Setiawan, Andri Setiawan, Rafik Djoenaidi, and Martha Putri Indrayanti. "DESAIN DAN PEMBUATAN JIG AND FIXTURE PEMBENTUK RADIUS LUAR (r = 5 – 20mm) PADA MESIN BUBUT MAXIMAT V-13 DI JURUSAN TEKNIK MESIN POLITEKNIK NEGERI MALANG." Jurnal Energi dan Teknologi Manufaktur (JETM) 4, no. 02 (December 31, 2021): 13–16. http://dx.doi.org/10.33795/jetm.v4i02.84.

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On a conventional lathe, the process of forming the outer radius on the workpiece (cylinder) can be directly carried out by installing a jig and fixture to facilitate the small-scale machining process that is applied to the tool holder (carriage) instead of the tool position. it is chisel and the holder is removed. Field surveys are needed to support the data collection process, such as the dimensions of the tool post and the distance of the feeding axis of the Maximat V-13 lathe. From this data, it will be correlated in the form of a jig and fixture design with material selection as a comparison. By involving jigs and fixtures in the practicum process, it can provide additional insight regarding work systems and time efficiency in the production process. So that it can help practitioners / students to recognize some of the supporting parts / components in the overall arrangement of jigs and fixtures.
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4

Sermsuti-Anuwat, Yongyooth. "Milling Fixture Design: A Tolerance Analysis Approach." International Journal of Mechanical Engineering Education 37, no. 2 (April 2009): 111–17. http://dx.doi.org/10.7227/ijmee.37.2.3.

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Jigs and fixtures are essential for metal machining. In their designs, the sizing of these components of work holding devices requires a great deal of experience and careful judgment. This paper describes an application of loop equations for tolerance allocation in jig and fixture design. The technique makes use of two basic equations, for sizes and for tolerances, to relate all functional dimensions to a functional requirement. This can simplify and facilitate the design of specification limits for jig and fixture components. The implementation of the technique is illustrated through a simple example of a milling fixture.
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Mamidwar, Aditya, Chaitanya Khaire, Pratik Thorat, Akash Deshmukh, and Prof K. D. Mohare. "Design and Analysis of Jigs and Fixtures for Inspection Process." International Journal for Research in Applied Science and Engineering Technology, no. 6 (June 30, 2024): 277–81. http://dx.doi.org/10.22214/ijraset.2024.62922.

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Abstract: In the realm of vehicle manufacturing, ensuring precise panel fitment is paramount for maintaining quality standards and customer satisfaction. This report delves into the significance of panel and fitment checking fixtures in the automotive industry. The study provides a thorough examination of the design, construction, and utilization of these fixtures, emphasizing their critical role in verifying the accuracy and alignment of vehicle panels during assembly. By employing advanced measurement techniques and precision engineering, these fixtures serve as indispensable tools for detecting deviations and inconsistenciesin panel fitment. Furthermore, the report explores the integration of innovative technologies such as 3D scanning and computer-aided design (CAD) in the development of these fixtures, enabling manufacturers to achieve higher levels of accuracy and efficiency in the quality control process. Through case studies and industry insights, the report showcases the practical application and effectiveness of panel and fitment checking fixtures across various stages of vehicle production. Additionally, it highlights the benefits of implementing standardized fixture designs and methodologies to streamline manufacturing processes and minimize production costs.
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6

Townes, Maryanne. "Jigs and Fixtures: Design Review Guidelines for the Ergonomics Engineer." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 15 (October 1994): 960. http://dx.doi.org/10.1177/154193129403801532.

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Traditionally, the ergonomics engineer has not played an active role in the design of jigs and fixtures used to manually assemble parts. This is problematic, since tool redesigns are often infeasible due to cost and production constraints. Therefore, less effective measures must be used to control ergonomic hazards, since the hazard(s) cannot be engineered out during the design process. References, guidelines and checklists used by many tool designers do not include ergonomic engineering principles and methods. In addition, many ergonomics engineers may not be schooled in the elements of jig and fixture design, which may reduce their effectiveness as part of the tool design team. The purpose of this paper is to provide the ergonomics engineer with an overview of the design process, and proffer guidelines to assist in the review of jig and fixture designs.
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Dangre, Sarthak. "Designing and Development of Press Tool Used for the Manufacturing of Circular shaped PCB." International Journal for Research in Applied Science and Engineering Technology 10, no. 12 (December 31, 2022): 753–57. http://dx.doi.org/10.22214/ijraset.2022.48007.

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Abstract: In addition to providing a thorough definition of jigs and fixtures, this study also outlined the multiple advantages of use of jigs and fixtures and its impact on production of PCB layouts. These benefits include increased productivity , reduced cost of machining and various other costs involved , interchangeability and high accuracy of parts, reduced need for inspection and quality control expenses, reduction of accident due to improved safety, automation of machine tool to a significant extent, and ease of machining of complex shapes. Different industries need different types of fixtures depending on their use. Manual labour is used to put up the fixture for the component. For the longer cycle time that is needed to load and unload the material . In the presented work ,the designing of a press tool and its manufacuring is done where the output is a circular PCB and the press machine used is of mechanical type .
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8

Ibrahim, Abdullah D., Hussein M. A. Hussein, Ibrahim Ahmed, Emad Abouel Nasr, Ali Kamrani, and Sabreen A. Abdelwahab. "Computer-Aided Design of Traditional Jigs and Fixtures." Applied Sciences 12, no. 1 (December 21, 2021): 3. http://dx.doi.org/10.3390/app12010003.

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Conventional design of jigs and fixtures has become unsuitable given the requirements of modern technology and complexity and diversity in the production with the rapid update of products. Computer-aided design (CAD) of jigs and fixtures is an effective solution in this direction. The current paper focuses on a computer-aided design of the traditional jigs and fixtures and developed a system containing tailor-made software, created using the Visual Basic programming language and installed on it the viewer screen to show the part. The developed system has been built by connecting Visual Basic programming language to the SolidWorks software on which the part is drawn and saved as STEP AP-203 file format, and the system reads and extracts the data from the STEP AP-203 file. Heuristic rules of feature recognition are pre-prepared for checking the extracted geometric data and deciding which data shape will represent the machining feature; then, the system provides the optimum design of the traditional jigs and fixtures for a group of hollow cylindrical parts that contain a group of cross-holes on the cylinder body, whether perpendicular or offset from the cylinder’s axis, (inclined or inclined offset, or blind or through, by applying pre-prepared heuristic rules for the design of traditional jigs and fixtures.
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9

Senderská, Katarína, Albert Mareš, and Jozef Kováč. "Application of Virtual Reality Means in Dashboard Function and Dashboard Assembly Fixture Ergonomic Analysis." Applied Mechanics and Materials 718 (December 2014): 221–26. http://dx.doi.org/10.4028/www.scientific.net/amm.718.221.

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Manual assembly has in some areas of production dominant role. For its effective performance the different jigs and fixtures may be used. For the design of such fixtures, it is useful to use CAD systems. The proposed fixture is necessary to additionally verify from the different points of view, including the ergonomic. For the fixture verification from ergonomic point of view, it appears that it is useful to use virtual reality components such as data gloves and their connection to the CAD design. The article describes the application of data glove for the verification of the functionality of the product and the functionality of its assembly fixture from ergonomics point of view.
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10

Patil, Rajkumar D., Dothre Dinesh, Hegade Sachin, and Killedar Vishal. "Design of Milling Fixture in Mass Production of Pivot Block." Asian Review of Mechanical Engineering 6, no. 1 (May 5, 2017): 13–17. http://dx.doi.org/10.51983/arme-2017.6.1.2423.

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Fixtures are essential elements of production processes as they are required in most of the automated manufacturing, inspection, and assembly operations. Mass production methods demand a fast and easy method of positioning work for accurate operations on it. Jigs and fixtures are production tools used to accurately manufacture duplicate and interchangeable parts. This paper aims at the Design of milling fixture using CATIA software. A milling fixture is used to hold and support the work piece in proper position during the milling operation. It is the manually operated simple milling fixture. Use of this milling fixture causes ease in operation, cost reduction, easy maintenance and replacement. In today’s fast growing industrial sector this milling fixture plays very important role by saving time to achieve quality work pieces and components.
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Roslan Awang, Muhammad Alfi Syahmi Mohd Yusri, Saiful Bahri Mohamed, Norliana Yusof, and Nor Azimah Ismail. "Application of Modular Fixture Interface in CAD Software for Jigs and Fixtures Design Teaching Aids." Journal of Advanced Research in Applied Sciences and Engineering Technology 29, no. 3 (February 8, 2023): 77–86. http://dx.doi.org/10.37934/araset.29.3.7786.

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Jigs and Fixtures Design are (is) among the core subjects offered at the diploma and degree level of Manufacturing Technology programs. Each student is assigned to create a specific jig design in their assignment task. The scope of the assignments covers a range of processes starting from the generation of ideas, sketches, technical drawings and eds with the prototype development. However, in previous batches of students, they were struggling with the issue of limited equipment and prototype development skills which consequently affects the quality of prototype being produced. To overcome this problem, a modular has been developed using CAD software to help students applying the components that are ready to be used as a jig to hold the workpiece. Through this idea generation method, students just need to select the existing components to develop the jig. They can also use the modular to assist them in their presentation. The results obtained from the use of modular show that students are able to reduce the time taken in developing the jig and are able to visualize the final product based on the proposed ideas.
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12

Suwarsono. "Pengembangan Basis Data Untuk Mengelola Komponen Perkakas Bantu Perakitan." Jurnal Teknik Industri 3, no. 1 (April 26, 2010): 1. http://dx.doi.org/10.22219/jtiumm.vol3.no1.1-11.

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Welding assembly jig company's activities are classified as job-order. Their products (jigs & fixtures) were depending on type of product, which was assembled. There are loot-of variations of product designs, process planning, tools, shop-floor control etc. to handling all customer order. One of the solutions is standardization product, to reduce product variation and the control problems.
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Shrivastava, Ankitesh, S. K. Ganguly, and Ajay Verma. "Implementation of designed jigs and fixtures for hand operated press in production of mainframe for paddy-weeder." BIBECHANA 12 (December 7, 2014): 104–13. http://dx.doi.org/10.3126/bibechana.v12i0.11672.

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The main purpose of paddy weeder is to dislocate the weeds present in paddy fields. The operation, when done manually causes drudgery in workers, which in turn reduces their efficiency in fields. Paddy weeder proved to be efficient enough to perform the work manually with less efforts & time consumed. The product was being manufactured by traditional methods, i.e. without implementation of jigs & fixtures. The paper presents a procedure for inclusion of designed & developed jigs and fixtures in the production of paddy weeder, and hence fulfills the need of mass production. The designed jigs proved quite efficient & were helpful in reduction of 50 % in welding operations performed. Hence, it is helpful in enabling mass production.DOI: http://dx.doi.org/10.3126/bibechana.v12i0.11672BIBECHANA 12 (2015) 104-113
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14

Hussein, H., A. Mahrous, A. Barakat, and O. Dawood. "COMPUTER AIDED TRADITION JIGS AND FIXTURES DESIGN." International Conference on Applied Mechanics and Mechanical Engineering 17, no. 17 (April 1, 2016): 1–11. http://dx.doi.org/10.21608/amme.2016.35218.

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Nee, A. Y. C., N. Bhattacharyya, and A. N. Poo. "Applying AI in jigs and fixtures design." Robotics and Computer-Integrated Manufacturing 3, no. 2 (January 1987): 195–200. http://dx.doi.org/10.1016/0736-5845(87)90102-5.

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Deshpande, Mahesh, Sanjay Kadam, and Sachin Sawant. "Exploring Experiential Learning Techniques to Foster Visualization and Imagination Skills among Mechanical Engineering Students during the Teaching of Jigs and Fixture Concepts." Journal of Engineering Education Transformations 37, IS2 (January 1, 2024): 642–47. http://dx.doi.org/10.16920/jeet/2024/v37is2/24099.

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Abstract— Jigs and fixtures are essential tools for modern manufacturing and machining processes. They contribute to precision, efficiency, cost-effectiveness, and safety in various industries, ultimately impacting the quality and competitiveness of products in the market. This course improves the visualization, imagination and drawing skill of the students which are helpful to them to draw their ideas clearly and rapidly, to read the drawing drawn by others and to create successful design. Manufacturing process course includes Jigs and fixture topic in this topic it is expected to imagine, visualize and develop the engineering drawing as per given requirements which includes orthographic projections in which imagining 3D objects are required to convert in 2D drawing. The students of second year mechanical engineering find this task difficult due to no prior basic knowledge, poor imagination and visualization skill. These skills are improved by experiential learning. Hence the attainment of the course learning outcome related to these topics is recorded low. To overcome this problem, a experiential learning approach implemented along with classroom teaching in order to enhance the, visualization, imagination and technical drawing skill of second year engineering students. In this article, the author has presented the efforts taken to improve the visualization, imagination and drawing skill through active engagement of students for learning in the classroom and outside of classroom. Due to systematic implementation of experiential learning, student’s engagement towards learning, attainment of the course outcomes (COs) and overall exam result of the course have been improved Keywords— Course Learning Outcome, Jigs and fixtures, Drawing, Experiential learning.
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Pham, D. T., and A. de Sam Lazaro. "Autofix—an expert CAD system for jigs and fixtures." International Journal of Machine Tools and Manufacture 30, no. 3 (January 1990): 403–11. http://dx.doi.org/10.1016/0890-6955(90)90184-k.

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Fiedler, Falko, Jannik Ehrenstein, Christian Höltgen, Aileen Blondrath, Lukas Schäper, Amon Göppert, and Robert Schmitt. "Jigs and fixtures in production: A systematic literature review." Journal of Manufacturing Systems 72 (February 2024): 373–405. http://dx.doi.org/10.1016/j.jmsy.2023.10.006.

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19

Radhwan, H., M. S. M. Effendi, Muhamad Farizuan Rosli, Z. Shayfull, and K. N. Nadia. "Design and Analysis of Jigs and Fixtures for Manufacturing Process." IOP Conference Series: Materials Science and Engineering 551 (August 14, 2019): 012028. http://dx.doi.org/10.1088/1757-899x/551/1/012028.

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20

Chikwendu Okpala, Charles. "The Design and Need for Jigs and Fixtures in Manufacturing." Science Research 3, no. 4 (2015): 213. http://dx.doi.org/10.11648/j.sr.20150304.19.

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Nicksch, C., A. Buckhorst, W. Meyer, P. Baryliszyn, and R. Schmitt. "Vorrichtungslose Montage von Karosseriebauteilen*/Fixtureless assembly of car body components - Virtual assembly of flexible joining processes in automotive prototype construction using laser radar." wt Werkstattstechnik online 109, no. 09 (2019): 628–33. http://dx.doi.org/10.37544/1436-4980-2019-09-14.

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Im automobilen Prototypenbau werden starre Vorrichtungen genutzt, um Karosseriebauteile für Fügeprozesse zueinander auszurichten. Geringe Stückzahlen der Vorserie führen zu kurzen Nutzungsphasen der aufwendig aufgebauten und eingemessenen Vorrichtungen. Im Beitrag wird ein Ansatz zur vorrichtungslosen Montage durch den Einsatz von Industrierobotik und laserbasierter Messtechnik vorgestellt. Die Ergebnisse zeigen, dass sich für einzelne Baugruppen Möglichkeiten für das vorrichtungslose Fügen in der industriellen Praxis ergeben.   Rigid fixtures are used in automotive prototype construction to align body parts for joining processes. Small quantities of the prototype series lead to short usage of the laboriously assembled and calibrated fixtures. In the following, an approach of fixtureless assembly using industrial robots and laser metrology is presented. The results show that some fixtures and jigs can be dispensed with for individual components in industrial practice.
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Savu, T., S. Nanu, and I. C. Ene. "Automatic positioning methodology and algorithm for modular jigs and fixtures components." IOP Conference Series: Materials Science and Engineering 1018 (January 20, 2021): 012015. http://dx.doi.org/10.1088/1757-899x/1018/1/012015.

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23

Paramasivam, V., K. P. Padmanaban, and V. Senthil. "Optimum design selection of jigs/fixtures using digraph and matrix methods." International Journal of Manufacturing Technology and Management 20, no. 1/2/3/4 (2010): 358. http://dx.doi.org/10.1504/ijmtm.2010.032906.

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Neitmann, Maximilian, Tom Rothe, Erik Kappel, and Christian Hühne. "Assembly of Compliant Structures with Autonomous Industrial Mobile Manipulators (AIMM) Using an End Effector with Active Deformation Compensation for the Assembly of Flaps." Machines 10, no. 5 (April 21, 2022): 291. http://dx.doi.org/10.3390/machines10050291.

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Composite structures in aeroplanes are often thin-walled and lightweight, resulting in significant compliance, which presents a handling and assembly challenge due to the associated part deformations. In order to counteract these deformations, the parts are held in their specified geometry using stiff and correspondingly heavy fixtures or jigs. Mobile industrial robots are very versatile and widely used in industrial volume production, but they are limited in their payload capacity. High-rate production of large aerospace modules requires highly automated flexible assembly processes. The approach presented in this paper is to combine mobile units with lightweight assembly jigs that have the capability of deformation compensation. The subject of the study is a high-rate assembly process for flap modules using an Autonomous Industrial Mobile Manipulator (AIMM) and a lightweight end effector. The end effector has a shape compensation function, implemented by an integrated Stewart platform, which enables the compensation of manufacturing tolerances as well as gravity effects. The compensation function is used in a closed loop and counteracts shape deviations by appropriate fixture shape adjustments. The paper reports on the conceptual design of the assembly scenario, the design of the end effector, its realization and the successful experimental demonstration at 1:1 scale.
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Tjiptady, Bella Cornelia, Rifki Zainur Rahman, Ratna Fajarwati Meditama, and Gede Widayana. "Jig and Fixture Redesign for Making Reamer on Head Cylinder." Jurnal Pendidikan Teknik Mesin Undiksha 9, no. 1 (March 25, 2021): 32–41. http://dx.doi.org/10.23887/jptm.v9i1.32597.

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Proses produksi telah banyak berevolusi dengan diperkenalkannya konsep manufaktur inovatif yang handal. Salah satu komponen mesin yang banyak diproduksi adalah cylinder head. Cylinder head harus tahan terhadap temperatur dan tekanan yang tinggi selama engine bekerja. Oleh sebab itu umumnya cylinder head dibuat dari besi tuang. Kendala yang ada saat ini yaitu proses pembuatan cylinder head kurang efektif dan efisien karena ketika menetapkan sudut untuk membuat reamer berbasis manual, selain itu setting benda kerja tidak otomatis sehingga membutuhkan waktu yang terlalu lama. Solusi dari permasalahan tersebut yaitu dengan adanya jig dan fixture. Metode penelitian yang digunakan adalah metodologi perancangan fixture (Society of Manufacturing Engineers). Berdasarkan hasil analisis, terdapat kelebihan dari jig dan fixture yang telah dirancang ulang yaitu: 1) memiliki stoper yang berfungsi untuk memberhentikan benda kerja, dengan sudut yang sudah ditentukan sehingga tidak perlu mensetting sudut kembali; 2) tidak mudah bergeser apabila fixture dipasang dan sejajar di meja frais; 3) terdapat dua engsel sehingga lebih balance; 4) pemasangan tidak rumit sehingga tidak memakan banyak waktu dalam pembuatan produk.Kata kunci: Jig and fixture; redesign; head cylinder The production process has evolved a lot with the introduction of innovative reliable manufacturing concepts. One of the engine components that are widely produced is the cylinder head. The cylinder head must withstand high temperatures and pressures while the engine is running. Therefore, generally the cylinder head is made of cast iron. The current constraint is that the cylinder head manufacturing process is less effective and efficient because when setting the angle to make the reamer a manual basis, besides that the workpiece setting is not automatic so it takes too long. The solution to this problem is the presence of jigs and fixtures. The research method used is the fixture design methodology (Society of Manufacturing Engineers). Based on the results of the analysis, there are advantages to the redesigned jig and fixture, namely: 1) it has a stoper which functions to stop the workpiece, at a predetermined angle so that there is no need to set the angle again; 2) it does not move easily when the fixture is installed and parallel to the milling table; 3) there are two hinges so that it is more balanced; 4) installation is not complicated so it does not take much time to manufacture the product.Keywords : Jig and fixture; redesign; head cylinder. DAFTAR RUJUKAN Basuki, B., Yoto., Suyetno A., & Tjiptady, B. C. (2020). Management Model of Manufacturing Workshop/Laboratory of Vocational Education in the Industry 4.0. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 127-130, doi: 10.1109/ICOVET50258.2020.9230188. Choong, G. Y. H., Canciani, A., & Defocatiis, D. S. A. (2020). An Adaptable Flexural Test Fixture for Miniaturised Polymer Specimens. Polymer Testing, 85, 106430. doi:10.1016/j.polymertesting.2020.106430 Craig, O., Picavea, J., Gameros, A., Axinte, D., & Lowth, S. (2020). Conformable Fixture Systems With Flexure Pins For Improved Workpiece Damping. Journal of Manufacturing Processes, 50, 638–652. doi:10.1016/j.jmapro.2019.12.045 Fonte, M., Reis, L., Infante, V., & Freitas, M. (2019). Failure Analysis of Cylinder Head Studs of a Four Stroke Marine Diesel Engine. Engineering Failure Analysis. doi:10.1016/j.engfailanal.2019.03.026 Gameros, A., Lowth, S., Axinte, D., Nagy-Sochacki, A., Craig, O., & Siller, H. R. (2017). State-Of-The-Art In Fixture Systems For The Manufacture And Assembly Of Rigid Components: A Review. International Journal of Machine Tools and Manufacture, 123, 1–21. doi:10.1016/j.ijmachtools.2017.07.004 Jing, G. X., Zhang, M. X., Qu, S., Pang, J. C., Fu, C. M., Dong, C., Zhang, Z. F. (2018). Investigation into diesel engine cylinder head failure. Engineering Failure Analysis, 90, 36–46. doi:10.1016/j.engfailanal.2018.03.008 Kamble, V. D., & Mathew, A. T. (2020). Brief Review of Methodologies for Creation of Cohesive Fixture Design. Materials Today: Proceedings, 22, 3353–3363. doi:10.1016/j.matpr.2020.04.285 Kampker, A., Bergweiler, G., Hollah, A., Lichtenthäler, K., & Leimbrink, S. (2019). Design and Testing of The Different Interfaces In A 3D Printed Welding Jig. Procedia CIRP, 81, 45–50. doi:10.1016/j.procir.2019.03.009 Krznar, N., Pilipović, A., & Šercer, M. (2016). Additive Manufacturing of Fixture for Automated 3D Scanning–Case Study. Procedia Engineering, 149, 197–202. doi:10.1016/j.proeng.2016.06.656 Kumar, S., Campilho, R. D. S. G., & Silva, F. J. G. (2019). Rethinking Modular Jigs’ Design Regarding the Optimization of Machining Times. Procedia Manufacturing, 38, 876–883. doi:10.1016/j.promfg.2020.01.169 Lu, R., Li, Y.-C., Li, Y., Jiang, J., & Ding, Y. (2020). Multi-agent Deep Reinforcement Learning Based Demand Response for Discrete Manufacturing Systems Energy Management. Applied Energy, 276, 115473. doi:10.1016/j.apenergy.2020.115473 Ma, S., Zhang, Y., Yang, H., Lv, J., Ren, S., & Liu, Y. (2020). Data-driven Sustainable Intelligent Manufacturing Based on Demand Response for Energy-Intensive Industries. Journal of Cleaner Production, 123155. doi:10.1016/j.jclepro.2020. 123155 Marsono, Yoto, Sutadji E., & Tjiptady, B. C. (2020). Career Development and Self-Efficacy Through Industrial Working Practice in Vocational Education," 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 1-4, doi: 10.1109/ICOVET50258.2020.9230111 Nee, A. Y. C., Bhattacharyya, N., & Poo, A. N. (1987). Applying AI in Jigs and Fixtures Design. Robotics and Computer-Integrated Manufacturing, 3(2), 195–200. doi:10.1016/0736-5845(87)90102-5 Qolik, A., Nurmalasari, R., Yoto., & Tjiptady, B. C. (2020). The Role of Special Job Fair in Distributing Competitive Graduates in the 21st Century. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 115-118, doi: 10.1109/ICOVET50258.2020.9230064 Schuh, G., Bergweiler, G., Lichtenthäler, K., Fiedler, F., & Puente, R. S. (2020). Topology Optimisation and Metal Based Additive Manufacturing of Welding Jig Elements. Procedia CIRP, 93, 62–67. doi:10.1016/j.procir.2020.04.066 Seloane, W. T., Mpofu, K., Ramatsetse, B. I., & Modungwa, D. (2020). Conceptual Design of Intelligent Reconfigurable Welding Fixture for Rail Car Manufacturing Industry. Procedia CIRP, 91, 583–593. doi:10.1016/j.procir.2020.02.217 Siva, R., Siddardha, B., Yuvaraja, S., & Karthikeyan, P. (2020). Improving the productivity and tool life by fixture modification and renishaw probe technique. Materials Today: Proceedings, 24, 782–787. doi:10.1016/j.matpr.2020.04.386 Tjiptady, B. C., Rohman, M., Sudjimat, D. A., Ratnawati, D. (2020). Analisis Tegangan, Deformasi, dan Retak Pada Gas Turbine Blade dengan Metode Elemen Hingga. Jurnal Taman Vokasi. Vol 8, (2). doi : 10.30738/jtv.v8i2.8425 Tjiptady, B. C., Yoto., & Marsono. (2020). Entrepreneurship Development Design based on Teaching Factory to Improve the Vocational Education Quality in Singapore and Indonesia, 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, pp. 130-134, doi: 10.1109/ICOVET50258.2020.9230222 Tohidi, H., & Algeddawy, T. (2016). Planning of Modular Fixtures in a Robotic Assembly System. Procedia CIRP, 41, 252–257. doi:10.1016/j.procir.2015.12.090 Vijaya, R. B., Elanchezhian, C., Rajesh, S., Jaya, P. S., Kumaar, B. M., & Rajeshkannan, K. (2018). Design and Development of Milling Fixture for Friction Stir Welding. Materials Today: Proceedings, 5(1), 1832–1838. doi:10.1016/j.matpr.2017.11.282
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ASADA, Haruhiko. "Basic concepts and application of programmable jigs and fixtures assembled by a robot." Journal of the Robotics Society of Japan 4, no. 4 (1986): 374–81. http://dx.doi.org/10.7210/jrsj.4.374.

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Lin, Tsong Der, and Alan C. Lin. "The Use of Supports to Fast Fabrication of Plastic Parts." Advanced Materials Research 939 (May 2014): 222–29. http://dx.doi.org/10.4028/www.scientific.net/amr.939.222.

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This paper provides a design technique of support for being applied in fast fabrication on plastic prototype, the plastic part developed through the computer aided design (CAD) can be rapidly fabricated by a CNC machining center without needs of any specific jigs or fixtures, the function provided is similar to a rapid prototyping (RP) machine used for fabricating the sampling part. By the testing result, the provided design technique of support can not only be applied in the part required for a dual-surface (or multiple-surface) processing, but also applicable for fabricating the part having thin housing. As such, this paper provides another economical and efficient option besides the RP.
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Shrivastava, A., and A. Verma. "Implementation of Improved Jigs and Fixtures in the Production of Non-Active Rotary Paddy Weeder." Science, Technology and Arts Research Journal 3, no. 4 (February 10, 2015): 152. http://dx.doi.org/10.4314/star.v3i4.22.

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AKTAN, Umut Nazmi, and Mehmet DİKMEN. "An optimized artificial neural network for estimating design effort of jigs and fixtures used in aviation industry." Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering 65, no. 2 (May 23, 2023): 130–41. http://dx.doi.org/10.33769/aupse.1254312.

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This paper investigates the usefulness of the machine learning methods to predict the design effort of jigs and fixtures used in the aviation industry. Reaching the best possible result by determining the ideal machine learning model to obtain the best estimate and the most appropriate set of inputs and parameters forms the basis of this study. To that end, most popular machine learning models that can be used for regression are combined with various data encoding methods. The best combination is optimized as well. The results showed that an optimized Artificial Neural Network architecture with binary encoding applied to the input data can be applied satisfactorily in the aviation industry for the solution of the given problem.
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Shenoy, S. M., and C. D. Rahn. "Neural Adaptive Control for Positioning Fabric on a Frictional Surface." Journal of Manufacturing Science and Engineering 121, no. 1 (February 1, 1999): 127–33. http://dx.doi.org/10.1115/1.2830564.

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This research focuses on real-time position control for draping fabric sliding on a high friction surface. Although fabrics are usually positioned on smooth surfaces with fixed fabric guides to simplify automated handling, a high friction work surface holds the fabric in place after positioning, allowing accurate assembly of multiple fabric parts without specialized jigs or fixtures. A neural adaptive controller with feedforward friction compensation provides asymptotic tracking for a spring mass model with friction. A test stand and an optical sensor are designed to facilitate real time position measurement and control. The neural adaptive controller demonstrates good position tracking and robustness to fabric property variations relative to open loop or PID control.
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Yuen, M. F., S. T. Tan, W. S. Sze, and W. Y. Wong. "An Octree Approach to Rough Machining." Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture 201, no. 3 (August 1987): 157–63. http://dx.doi.org/10.1243/pime_proc_1987_201_062_02.

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This paper presents an octree subdivision based algorithm of automatic cutter path generation for machining on a numerical control machining centre. Both the stock and the part are represented by solid models. The machining strategy is based on a layer by layer approach taking care of the cutter strength and the variation of the part geometry. This approach allows the problem to be reduced from a three-dimensional to a two-dimensional cutter path generation problem which is solved by a quadtree representation of the plane. The method can be easily extended to include the jigs and fixtures and any other obstacles which would be represented by solid models. Algorithms are described in Pascal-like structure.
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Deshmukh, N., S. Chinchanikar, C. Garde, A. Kulkarni, S. Garode, T. Lindner, A. Konaka, and M. Hartz. "Mechanical design of multi-PMTs for IWCD." Journal of Physics: Conference Series 2374, no. 1 (November 1, 2022): 012134. http://dx.doi.org/10.1088/1742-6596/2374/1/012134.

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Approximately 500 multi-PMTs (mPMTs) will be used as the photosensors for the Intermediate Water Cherenkov Detector (IWCD), a new near detector for the approved Hyper-Kamiokande experiment that will be built by 2025. The IWCD mPMT design has nineteen 3” PMTs enclosed in a water-tight pressure vessel, along with the associated electronics. The 3” PMTs provide excellent spatial imaging of the neutrino-induced Cherenkov light ring. This work will focus on the mechanical design of the mPMT vessel. In particular, design of the acrylic dome, use of optical gel to couple the dome to the PMTs, assembly procedures of dome and PMT sub-assembly (including the necessary jigs / fixtures), design of water-tight feed-through & plans for testing and results from several mPMT prototypes.
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Shrivastava, Ankitesh, and Ajay Verma. "Implementation of Taguchi methodology in optimization of developed jigs and fixtures for production of paddy weeder." Paddy and Water Environment 15, no. 1 (January 14, 2016): 1–9. http://dx.doi.org/10.1007/s10333-016-0522-6.

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34

Miller, A. S., and R. G. Hannam. "Computer Aided Design Using a Knowledge Base Approach and its Application to the Design of Jigs and Fixtures." Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture 199, no. 4 (November 1985): 227–34. http://dx.doi.org/10.1243/pime_proc_1985_199_073_02.

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Nakaminami, Masamitsu, Tsutomu Tokuma, Toshimichi Moriwaki, and Keiichi Nakamoto. "Optimal Structure Design Methodology for Compound Multiaxis Machine Tools - I - Analysis of Requirements and Specifications -." International Journal of Automation Technology 1, no. 2 (November 5, 2007): 78–86. http://dx.doi.org/10.20965/ijat.2007.p0078.

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The functionality of compound multiaxis machine tools is becoming increasingly versatile as NC lathes evolve. A single compound multiaxis machine tool functions as a 2-axis NC lathe and as a 5 axis machining center. The compound multiaxis machine tool executes machining such as inclined surface and gear cutting, conventionally executed by dedicated machines with special jigs and fixtures. A survey has shown that most machining executed by conventional compound multiaxis machine tools consists of basic drilling and milling on the orthogonal plane, indicating that compound multiaxis machine tools specifications should be designed to meet these requirements. To improve competitiveness and return investment over conventional NC lathes and machining centers, productivity required for a compound multiaxis machine tool is derived based on the machining time of typical parts on conventional machines. Here, we address systematic analysis and methodology to determine compound multiaxis machine tool specifications from the viewpoints of quality and cost.
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Aktas, Serkan, and Yasin Kisioglu. "Improving the fatigue life of produced dental implants by the thread-rolling process." Materials Testing 64, no. 7 (July 1, 2022): 1012–25. http://dx.doi.org/10.1515/mt-2021-2159.

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Abstract This study was aimed to produce and test dental implants made out of biocompatible commercial pure titanium (Grade 4) material with improved mechanical strength. The implant samples were designed and manufactured in real sizes using both machining and thread-rolling (TR) processes. This study is also discovering the benefits of cold forming (TR) versus machining processes in terms of increased efficient strength and reduced costs. To produce the samples using the TR method, a suitable TR processing bench including a pair of reverse threaded flat dies and relevant jigs and fixtures were designed and manufactured. The produced implant samples were tested with static and dynamic loads considering the requirements of the ISO14801:2016 standards. The obtained results were compared in terms of mechanical strength and fatigue life. Their microscopic structures and micro-hardnesses were examined to realize the effects of the manufacturing processes. In addition, the effects of hardness, surface roughness, and residual stresses on both mechanical strength and fatigue life of the implants were also evaluated. Therefore, the obtained results showed that the TR process is extremely effective to improve the implant strength and fatigue life.
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Zhang, Yongjie, and Seung Ki Moon. "The Effect of Annealing on Additive Manufactured ULTEM™ 9085 Mechanical Properties." Materials 14, no. 11 (May 28, 2021): 2907. http://dx.doi.org/10.3390/ma14112907.

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Fused filament fabrication (FFF) is increasingly adopted for direct manufacturing of end use parts in an aviation industry. However, the application of FFF technique is still restricted to manufacturing low criticality lightly loaded parts, due to poor mechanical performance. To alleviate the mechanical performance issue, thermal annealing process is frequently utilized. However, problems such as distortion issues and the need for jigs and fixtures limit the effectiveness of the thermal annealing process, especially for low volume complex FFF parts. In this research, a novel low temperature thermal annealing is proposed to address the limitations in conventional annealing. A modified orthogonal array design is applied to investigate the performance of ULTEM™ 9085 FFF coupons. Further, the coupons are annealed with specialized support structures, which are co-printed with the coupons during the manufacturing process. Once the annealing process is completed, multiscale characterizations are performed to identify the mechanical properties of the specimens. Geometrical measurement of post annealed specimens indicates an expansion in the layering direction, which indicates relief of thermal stresses. Moreover, annealed coupons show an improvement in tensile strength and reduction in strain concentration. Mesostructure and fracture surface analysis indicate an increase in ductility and enhanced coalescence. This research shows that the proposed annealing methodology can be applied to enhance the mechanical performance of FFF parts without significant distortion.
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Kasie, Fentahun Moges, Glen Bright, and Anthony Walker. "Decision support systems in manufacturing: a survey and future trends." Journal of Modelling in Management 12, no. 3 (August 14, 2017): 432–54. http://dx.doi.org/10.1108/jm2-02-2016-0015.

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Purpose This paper aims to propose a theoretical decision support framework, which integrates artificial intelligence (AI), discrete-event simulation (DES) and database management technologies so as to determine the steady state flow of items (e.g. fixtures, jigs, tools, etc.) in manufacturing. Design/methodology/approach The existing literature was carefully reviewed to address the state of the arts in decision support systems (DSS), the shortcomings of pure simulation-based and pure AI-based DSS. A conceptual example is illustrated to show the integrated application of AI, simulation and database components of the proposed DSS framework. Findings Recent DSS studies have revealed the limitations of pure simulation-based and pure AI-based DSS. A new DSS framework is required in manufacturing to address these limitations, taking into account the problems of flowing items. Research limitations/implications The theoretical DSS framework is proposed using simple rules and equations. This implies that it is not complex for software development and implementation. Practical data are not presented in this paper. A real DSS will be developed using the proposed theoretical framework and realistic results will be presented in the near future. Originality/value The proposed theoretical framework reveals how the integrated components of DSS can work together in manufacturing in order to determine the stable flow of items in a specific production period. Especially, the integrated performance of case-based reasoning (CBR) and DES is conceptually illustrated.
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Adiyanto Pratama, Sandy, and Engkos Koswara. "PROSES PRODUKSI PART SHAFT MIXER VERTICAL MENGGUNAKAN MESIN BUBUT KONVENSIONAL DAN MESIN MILLING CNC." SEMINAR TEKNOLOGI MAJALENGKA (STIMA) 7 (November 8, 2023): 341–52. http://dx.doi.org/10.31949/stima.v7i0.912.

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PT. Amanah Jaya Persada is a company engaged in the manufacture of automotive parts, precision parts, jigs & fixtures, molds & dies, casting parts, fabrication and manufacture of tools for other industrial needs. PT. Amanah Jaya Persada manufactures Vertical Shaft Mixer Parts using conventional lathes and CNC Milling machines. In the process of making Part Shaft, the process of measuring the initial diameter of the material, making a sketch of the size of the workpiece, and the process of making the CNC Milling program code. The purpose of this research is to find out the production process time for Vertical Shaft Mixer Parts on Conventional Lathes and CNC Milling Machines, to understand the types of program codes on CNC milling machines. The research stages were carried out from the observation stage, problem formulation, literature study, field practice, data collection and data analysis, followed by material specifications, Conventional Lathes and CNC Milling Machines. The results showed that the production process for the Part Shaft Mixer Vertical using a conventional lathe required machining time of 33 minutes 6 seconds, while for a CNC milling machine it took 14 minutes 6 seconds. The CNC milling process uses a combination of G91 incremental and absolute G90 machining commands, G28 to return to the reference point for repeated feeding, as well as M code for rotating spindle commands, changing tools, turning on the coolant and stopping the machine / program is complete.
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Brylev, A. V., and S. S. Mikheev. "The study of the curvature of the axis of the processed shaft when based in the centers using a steady rest." Glavnyj mekhanik (Chief Mechanic), no. 5 (May 14, 2021): 48–55. http://dx.doi.org/10.33920/pro-2-2105-05.

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This paper presents the analysis and results of the study of a two-stage shaft fixed in dead centers and a rest device. Cutting forces act on the shaft, causing a bending moment. The analysis of the curvature of the axis of the workpiece, processed on a lathe when based in the centers, using a rest device, is carried out. The formula of elastic displacement of the workpiece axis at the place of the resulting cutting force is obtained. Diagrams of the stresses of the shaft axis displacements are constructed and a conclusion is made. The analysis showed that the greatest deflection is at the point of the cutting forces acting on the shaft. The quality of the part obtained after processing is characterized by accuracy. The parts mating in the product and, as a result, the overall reliability depends on how accurately the size and shape of the part will be maintained during processing. Parts with length of 10 to 12 times larger than the diameter are bent under the action of their own weight and cutting forces, as a result of which they get a barrel-like shape. It is possible to eliminate this by applying special devices for the machine. When processing long nonrigid workpieces, the tools, jigs and fixtures must evenly distribute the clamping force over the surface of the part. These conditions are well provided by technological equipment with pneumatic, hydraulic clamping devices, as well as with various collet clamps, split bushings, diaphragm or cartridges. When processing long non-rigid shafts, rest devices are used. The rest device plays the role of the main or secondary support when working with workpieces; it creates support for large, long parts during processing. It helps to avoid the risk of damage and deformation of the workpiece or the cutting elements of the machine, by giving the workpiece additional stability
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Joshi, Manoj, and Apoorva Srivastava. "Surviving challenges: a case of DK Exports on family business." Emerald Emerging Markets Case Studies 4, no. 2 (July 14, 2014): 1–18. http://dx.doi.org/10.1108/eemcs-06-2013-0102.

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Subject area – Entrepreneurship, strategy, family business. Study level/applicability – MBA, PhD (Mgmt) Case overview – DK Dies and Tools was set up initially as a tool room by its founder Krishna Verma. It manufactured machine parts, sheet metal tools, jigs and fixtures, plastic/rubber moulds and metal fabrications. The firm came to be known as DK Exports (henceforth DKX) when it was professionalized in the year 2003 for merchant exporting. Lately, after the founder's demise, professionalization had become a dire need when the firm faced with loss of customers, the market share was taken over by the Chinese, workers' expectations had risen, poor internal communications, search for dynamic capabilities and finally a need to diversify had arisen. Unexpected death of the founder had pushed the firm into doldrums. It was because of the founder's relationship and reputation in the market that the business prospered. Unfortunately, the tacit knowledge he possessed could not be handed over to his son Kunal, which led to complexes in business. Hence, there arose a need for internationalization for finding new customers and markets. Entrepreneurial orientation needed a change. The new Chairman, Kunal, had expertise in operations management, with his wife, Priyanka, looking after development via overseas collaborations. The firm had been struggling to create a two-tier top-level management to decide on operational issues, besides search for newer destinations for increasing the scale of operations. Expected learning outcomes – To understand how multilevel entrepreneurship happens and the importance of translating tacit knowledge to explicit knowledge, especially at times when the founder has to pass the baton to the second generation. Supplementary materials – Teaching notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.
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Deng, Yuan Chao. "A Theoretic Study on Cam-Clamping Device." Advanced Materials Research 295-297 (July 2011): 1536–39. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.1536.

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A theoretical study has been made on the cam-clamping device. In this article, we consider specifically the calculations of cam geometry, calculations of clamping force and clamping torque, conditions for self-locking, and conditions for contact strength. Machine fixtures are essential in the process of mechanical manufacturing. There are many different types of fixtures, such as manual jig, pneumatic clamps, hydraulic fixtures, electric fixtures, etc. There are also many ways of clamping, such as incline clamp, screw clamp, eccentric circle clamp, hinge clamp [1], among which the eccentric circle clamp finds wide applications, especially in fast-clamping devices. Although the circular eccentric fixture possesses the advantages of simple structure, convenient manufacturing, and low cost, it suffers the drawbacks of small clamping force, short clamping-surface travel distance, and unreliable self-locking mechanism. The cam-clamping device discussesed in this article involves replaceing the eccentric circle with a cam, as shown in Fig. 1. The cam profile curve can be designed according to any requirements. The advantages of this replacement are obvious, in addition to preserving the advantages of the circular eccentric fixture, the cam-clamping can be designed according to the actual needs of clamping paths and selection of the appropriate cam profile to improve the self-locking.
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Krasko, A. S., and M. A. Filin. "Increasing the productivity of automated technological complexes by using multipiece devices." Glavnyj mekhanik (Chief Mechanic), no. 5 (May 14, 2021): 34–42. http://dx.doi.org/10.33920/pro-2-2105-03.

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This article deals with the issue of increasing the productivity of automated technological complexes of mechanical processing by reducing off-cycle time losses. The time for adjustment of tools, jigs and fixtures is considered the most significant type of losses for flexible machining cells. The most effective solution for reducing the adjustment time to increase the productivity of technological complexes of mechanical processing is the use of multipiece devices. Multipiece devices refer to machine retaining devices that allow installing workpieces of different standard sizes without readjustment or with minimal readjustment. The effectiveness of such devices depends on the number of installed parts of different standard sizes, and the greater this number is, the higher the effectiveness of the device is. The article proposes to divide the total time of adjustment of a multipiece device into components that take into account the time for installation and adjustment of the device and the time for changing the adjustment of the device when switching to the production of the next batch of parts. The division of the total adjustment time allows taking into account the loss of adjustment time for each part in the conditions of using a multipiece device. The time for changing the adjustment before making a new batch of parts is divided into the entire batch or several batches, if several batches of parts are made during the same adjustment. The time of installation and adjustment of the device is divided into all the batches processed on this device. With a strict schedule for the operation of an automated technological complex within a certain period of time, such a calculation shows an accurate result. However, for technological complexes with a flexible schedule, analytical calculation becomes impossible. Therefore, the task is to obtain the value of the adjustment time of the device, which falls on one processed part by conducting simulation modeling on an automated technological complex. A simulation experiment is conducted to determine the performance of the complex, depending on the device used.
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Nsengiyumva, Gabriel, and Yong-Rak Kim. "Effect of Testing Configuration in Semi-Circular Bending Fracture of Asphalt Mixtures: Experiments and Statistical Analyses." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 5 (April 7, 2019): 320–28. http://dx.doi.org/10.1177/0361198119839343.

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The semi-circular bending (SCB) test is a simple, efficient, and easily applicable method in the pavement community to characterize fracture behavior. This makes it widely used as a quality control (QC) and quality assurance (QA) approach at several transportation agencies. However, public–private testing laboratories have implemented SCB test methods using different load-support fixture conditions with an insufficient understanding of how the conditions affect the results and testing variability. This could be particularly problematic when using SCB test results obtained from different load-support fixtures as QC–QA (or pass/fail) purposes. This study investigated the effect of SCB testing configurations on test results and their variability by conducting tests using six different load-support fixtures. Several fracture-related indicators such as fracture energy, flexibility index, peak load, and the coefficient of the cracking index resulting from the six different load-support fixtures were compared. Test results and statistical analyses showed that SCB tests generally showed repeatable results, whereas load-support fixtures can affect test results and their repeatability, thus care should be taken when choosing a testing fixture. The addition of roller springs generally increased the variability of the test results. It appears that the mid-span jig was detrimental to testing repeatability, and friction at the support should be avoided because it can erroneously increase fracture resistance with a higher variability.
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Haji Che Daud, Mohd Radzi, and Mohamad Faizal Bin Abdul Nasir. "Design and Develop the Jig and Fixtures for HLV 30 Piercing Machine." Advanced Materials Research 576 (October 2012): 781–84. http://dx.doi.org/10.4028/www.scientific.net/amr.576.781.

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HLV 30 Piercing Machine produced by SMG Pressen, an engineering company from Germany that exercising the task of piercing of LPG cylinder for valving process. This particular machine is used by LPG cylinder production plant, and one of them is Keloil LPG Cylinders Sdn. Bhd. This research project intend to study how this piercing process affects the production quality of the LPG gas and also to develop and design the new jig and fixture for this machine to get the accurate tolerance for the piercing process and decrease the index of rejection of the cylinder. In this research, we try to analyze the production data and try to make a new design of fixtures for this machine to get the better result and performance for this machine.
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Sibanda, Palesa S., Ilesanmi A. Daniyan, Khumbulani Mpofu, Elvis P. Sekano, and Walter T. Seloane. "Performance Evaluation of a Smart Welding Fixture and Jig Assembly." International journal of applied engineering and technology (London) 5, no. 3 (September 29, 2023): 163–70. http://dx.doi.org/10.61485/ijaet/v5-3-2023-21.

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The increasing global competitiveness, dynamic customers’ and markets requirements as well as the bottom-line of profitability necessitate the use of smart welding fixture and jigs as work holding and locating devices during component parts manufacturing. This study presents the performance evaluation of a smart welding fixture and jig for welding operation. The smart welding fixture and jig assembly consists of a compressor, proximity sensors, thermostat, cooling system, clamping elements, fixture body support, cables as well as a control panel for pre-programming the conditions for the welding operation. The performance evaluation was carried out by comparing the pressure and the time taken for clamping and unclamping activities. The pressure selected for the evaluation ranges between 241 316.6 Pa - 792 897.4 Pa while measurement was taken in terms of the time it took the edges-gripping clamps to return to their initial states. The results obtained also show that at as the pressure increase, there was a decrease in the time taken for the clamping and unclamping activities up to 379 211.8 Pa. Further increase in the pressure beyond 379 211.8 Pa first resulted in an increase in the time taken up to 792 897.4 Pa. When the pressure was increased beyond 792 897.4 Pa, it was observed that the time taken for the clamping and unclamping activities begin to increase and later reduces. The machine demonstrated the potential for saving 32.26% of the total time during the manual operation when the machine is operated in an automatic mode. This study provides empirical findings that can assist manufacturing industries particularly those who employ welding as a means of product fabrication in achieving welding operations in a timely and cost effective manner with less human intervention.
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47

Komara, Asep Indra. "PERANCANGAN ULANG MACHINING FIXTURE UNTUK PRODUK CYLINDER HEAD DAN COVER CRANKCASE TIPE 168." Machine : Jurnal Teknik Mesin 6, no. 1 (April 1, 2020): 1–7. http://dx.doi.org/10.33019/jm.v6i1.1367.

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The cylinder head and crankcase cover are components of an engine produced by a manufacturing company in Tangerang. Companies need to make improvements to the production process of these components in order to compete with their competitors. The improvement of the production process is done by improving the machining process stages and re-designing the engine product fixture. Actually the company already has a fixture for the engine machining process, but the fixture cannot be used to produce engine components because it still does not function properly. The problem that occurs is the deviation of the dimensions of machining results and the ineffectiveness of the machining process thereby reducing work productivity. Therefore, it is necessary to design a new fixture that is able to answer both of these problems. Fixture design through the application of the VDI 2222 method combined with the design method according to the Handbook of Jig Fixture has resulted in a fixture design and estimated new machining process time for engine components. The fixture design is then analyzed and validated using engineering software to ensure the fixture's rigidity of the clamping force, machining force, and deflection that occur during the machining process which can have an impact on dimensional deviations. Based on the results of the study conducted, a fixture design for machining cylinder head and crankcase cover products has been produced with fixture dimensions of 450 x 459 x 1125 with a weight of 190 kg. The time needed to complete the cylinder head product is 308.67 seconds and the crankcase cover is 224.19 seconds. The maximum clamping force required is 0.36 kN. Deflection that occurs in the clamping rod is 0.0048 mm, the fixture frame is 0.029 mm and the product deformation is 0.06 mm. The fixture design is expected to be able to solve the problems that exist in the company today.
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48

Kowang, Tan Owee, Nabila Binti Mohd Hamel, Choi Sang Long, and Amran Bin Mohd Rasli. "Operation Management: Project Management in Jig and Fixture Industries." Advanced Materials Research 931-932 (May 2014): 1621–25. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.1621.

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The economic growth in Southeast Asia has a number of benefits for downstream industries including jig and fixture fabricators. Jig and fixture fabricators are categorized as small and medium industries that operate based on job-shop manufacturing concept. Meantime, jig and fixture projects are characterized by the unique nature of unforeseeable demand and customized design with multiple objectives. Hence, managing jig and fixture projects is eventually not an easy task. In line with this, this paper aims to develop an objective driven framework that is applicable to jig and fixture industries in Southeast Asia. Thus, the paper reviews various objectives and success factors for jig and fixture projects. The paper subsequently proposes a jig and fixture project management framework based on an objective-oriented project planning and management theory, namely Logical Framework Approach (LFA). The proposed framework is developed based on the concept that generalizations of jig and fixture projects objectives are infeasible. As such, the proposed framework treats projects objective individually. The uniqueness of the proposed framework is the multiple cross links that exist between project management success factors and project objectives. Intrinsically, the proposed framework presents a clearer picture on important factors that contribute towards the success of achieving each projects objective. The proposed framework has descriptive value in terms of studying, classifying and defining the relationships that govern jig and fixture project activities and project objectives.
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49

Ari pradnyana, Suta, I. Nyoman Pasek Nugraha, and IGede Wiratmaja. "PENGEMBANGAN PROTOTYPE JIG AND FIXTURE ATTACHMENT UNTUK MENAMBAH AXIS MESIN BUBUT." Nusantara of Engineering (NOE) 6, no. 2 (October 26, 2023): 190–99. http://dx.doi.org/10.29407/noe.v6i2.20192.

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Penelitian ini dilakukan untuk mengetahui proses pengembangan Prototype Jig and Fixture Attachment, dan mengetahui tingkat kelayakan serta kepraktisan Prototype Jig and Fixture Attachment. Metode pengembangan penelitian menggunakan Research And Development R&D. Model pengembangan yang digunakan pada penelitian ini yaitu model pengembangan 4-D (Four-D). Jenis data pada penelitian ini yaitu berupa data kuantitatif. Dari uji survey pendahuluan yang dilakukan terhadap 10 orang responden, dinyatakan bahwa perlu adanya pengembangan Prototype Jig and Fixture Attachment untuk menambah Axis mesin bubut. Pada uji ahli desain didapatkan hasil persentase 100% yang berarti pengembangan Prototype Jig and Fixture Attachment untuk menambah Axis mesin bubut digolongkan sangat layak. Selanjutnya dilakukan uji ahli manufaktur didapatkan hasil persentase 100% yang digolongkan sangat layak. Dapat disimpulkan bahwa pengembangan Prototype Jig and Fixture Attachment untuk menambah Axis mesin bubut sangat layak dan praktis untuk dikembangkan.
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50

Fyona, Annisa, Rahman Hakim, and Afriandi Afriandi. "Desain Jig & Fixture untuk Break Shoes Sepeda Angin." Jurnal Teknologi dan Riset Terapan (JATRA) 1, no. 2 (December 31, 2019): 38–42. http://dx.doi.org/10.30871/jatra.v1i2.1361.

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Perkembangan industri yang sangat pesat membuat persaingan di dunia industri menuntut adanya alat yang bisa membantu proses produksi agar bisa lebih cepat dan mampu menghasilkan produk dengan jumlah yang banyak dalam waktu yang singkat serta mengurangi biaya produksi,salah satu cara untuk meningkatkan kualitas dan produksi diperlukan Jig & fixture yang lebih efisien. Dalam pengerjaan,maka dilakukan pengembangan terhadap jig & fixture yang telah ada di PT.SBM agar lebih efisien, dan agar tidak terjadi kesalahan dalam proses pembuatan jig & fixture maka dilakukan pengambilan data dengan menggunakan Ishikawa Diagram untuk melihat pengaruh-pengaruh yang menyebabkan kualitas dan produksi yang kurang optimal,serta melakukan observasi terhadap jig & fixture yang telah ada sebelumnya.Selanjutnya dilakukan proses desain yang akan dikerjakan dengan menggunakan software Solidwork dengan cara penambahan dari 2 menjadi 3 jig. Dengan penambahan jig tersebut maka diharapkan akan ada penambahan kuantitas terhadap part break shoes tersebut.
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