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Journal articles on the topic 'Machine-tools Machining. Turning (Lathe work)'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Sutopo, Sutopo, Bayu Rahmat Setiadi, and Muhammad Hanzla. "Upgrading Manual Turning Machine Towards IoT-Based Manufacturing." Jurnal Pendidikan Teknologi dan Kejuruan 26, no. 2 (2020): 155–61. http://dx.doi.org/10.21831/jptk.v26i2.27334.

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Technological independence is one aspect of the challenges of the industrial revolution era 4.0. Digitalization, robotization, big data, internet of things (IoT), and efficiency of work processes require an update in technology. If everything is held in the fulfillment of practicum facilities, it will undoubtedly cost a prohibitive fee. Many of the tools and machines found in learning machining practices in Vocational High Schools (VHS) in Indonesia are still a conventional machine. This study provides a breakthrough solution in the effectiveness and efficiency of traditional machining of the

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Vasilko, Karol. "Highly Productive Tools For Turning And Milling." Technological Engineering 12, no. 2 (2015): 5–9. http://dx.doi.org/10.1515/teen-2015-0009.

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Abstract Beside cutting speed, shift is another important parameter of machining. Its considerable influence is shown mainly in the workpiece machined surface microgeometry. In practice, mainly its combination with the radius of cutting tool tip rounding is used. Options to further increase machining productivity and machined surface quality are hidden in this approach. The paper presents variations of the design of productive cutting tools for lathe work and milling on the base of the use of the laws of the relationship among the highest reached uneveness of machined surface, tool tip radius

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Kasijanto, Kasijanto, Sadar Wahjudi, Listiyono Listiyono, and Muhammad Fakhruddin. "Pengaruh Parameter Pemesinan terhadap Kualitas Hasil Potong Mesin Bubut Maximat V13 pada Benda Kerja Poros PVC." Jurnal Energi dan Teknologi Manufaktur (JETM) 2, no. 02 (2019): 19–24. http://dx.doi.org/10.33795/jetm.v2i02.43.

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Metal cutting process (cutting process) is to cut metal to get the shape and size and quality of the planned cutting surface. The metal cutting process is carried out with special tools, according to the type of cutting process. So the tools for one process cannot be used in another process, even for similar processes, the tools cannot be exchanged if the cutting plans are not the same. Lathe process is a machining process to produce cylindrical machine parts which are carried out using a Lathe. Its basic form can be defined as the machining process of the outer surface of cylindrical or flat

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Shasheekant, Sawant Akshay. "Analyzing the Vibration Effect of Cutting Tool on Surface Roughness of Turning Work Piece in Lathe Machine." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 1654–57. http://dx.doi.org/10.22214/ijraset.2021.36446.

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Tool condition observation systems area unit essential in small milling applications. A tool's slenderness needs high-precision observation systems for on-line measurements. In most cases, tool health is indirectly calculable by process and analyzing the cutting method parameters cutlery wear may be a essential development that influences the standard of the machined half. Vibration signals from metal cutting processes are investigated for varied functions, together with in-process tool wear monitoring. Reducing the machining energy consumption (MEC) of machine tools for turning operations is

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NARESH, Hazari, and Padhy CHINMAYA PRASAD. "Lathe Parameters Optimization for UD-GFRP Composite Part Turning with PCD Tool by Taguchi Method." INCAS BULLETIN 12, no. 4 (2020): 135–44. http://dx.doi.org/10.13111/2066-8201.2020.12.4.12.

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The aerospace and automobile sectors are widely utilized the polymer composites. The composite materials, like unidirectional glass fiber reinforced polymer (UD-GFRP), is difficult to machine due to its anisotropic that is non-homogeneous character and such material requires special cutting tools. The proposed work is going to examine the tool wear, quality of the surface and forces generated in the various stages of inputs given to the machining of unidirectional glass fiber reinforced polymer (UD-GFRP) composites. The assessment of the machining incorporates tool wear investigations, surface

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Wang, Song Hao, and Wei Bin Chen. "A Multi-Tip Turning Tool Structure for Thin and Long Pieces." Advanced Materials Research 683 (April 2013): 841–44. http://dx.doi.org/10.4028/www.scientific.net/amr.683.841.

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This paper presents the development of a Multi-Tip Tool Structure for fast turning process, to prolong overall tool life as well as to shorten machining time. Instead of one cutting edge in regular turning process, several cutting tools are used simultaneously in this assembly. With this arrangement, radial cutting forces are balanced with each other and the steady or follower rests in a regular lathe can be eliminated, for long and thin work pieces. Make the tooling structure more compact and more feasible for multi-head CNC turning or combo machining.

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7

Wang, Song Hao, and Wei Bin Chen. "Introduction of a CNC Multi-Tip Turning Tool Structure with Option of Automatic Follower Rest." Advanced Materials Research 694-697 (May 2013): 1808–11. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1808.

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A CNC controlled Multi-Tip Tool Structure for fastturning process is presented in this paper, to prolong overall tool life aswell as to shorten machining time. Instead of one cutting edge in regularturning process, several cutting tools are used simultaneously in thisassembly. With this arrangement, radial cutting forces are balanced with eachother and the steady or follower rests in a regular lathe can be eliminated,for long and thin work pieces. Make the tooling structure more compact and morefeasible for multi-head CNC lathe or combo machining.

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8

Kalidasan, R., M. Yatin, D. K. Sarma, and S. Senthilvelan. "Effect of Offset Distance on Cutting Forces and Heat Generation in Multi-Tool Turning Process." Applied Mechanics and Materials 592-594 (July 2014): 211–15. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.211.

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Productivity enhancement assumes a paramount importance in today’s competitive industrial world. The aim of this work is to improve productivity in a conventional lathe with two single point cutting tools machining a workpiece simultaneously. An additional tool holding fixture is fabricated and integrated so that distance between the two cutting tools can be varied and has a provision to provide individual depth of cut. Experiments were performed on gray cast iron workpiece at different offset distances between the cutting tools, at a particular cutting speed, feed rate and depth of cut. In th

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9

Vinod Kumar, M. A. "ANFIS for Predicting Surface Roughness in Turning Operation Performed on CNC Lathe." Applied Mechanics and Materials 110-116 (October 2011): 1793–98. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.1793.

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For mass production, mainly automation is used, in which cutting parameters are set to obtain required surface roughness. The parts like IC Engine piston, cylinders require very smooth surface finish. The same is the case of sleeves, collets etc., of machine parts. These are made by automatic machining operations. To get approximate value of required surface roughness, the cutting parameters that are to be set with help of Adaptive Neuro Fuzzy Inference System (ANFIS) that is designed by using Fuzzy Logic Toolbox. The Fuzzy Logic Toolbox is a collection of functions built on the MATLAB numeric

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Saxena, Arti, YM Dubey, Manish Kumar, and Abneesh Saxena. "Optimization of input machining parameters in SBCNC-60 for turning and drilling on P8 (H-13,HSS) material." International Journal of Electrical Engineering & Education 58, no. 2 (2021): 640–63. http://dx.doi.org/10.1177/0020720920988487.

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Today’s technology of automobile manufacturing industries depends mainly on a metal cutting operation like turning and drilling. This paper aims to improve turning and drilling operations in industries where necessity is to increase productivity by improving the metal removal rate. This paper-work uses the Taguchi method to analyze the input control parameter and optimize the significant ones to obtain the desired output. Taguchi method is a broadly used technique for experimental design and analysis of experimental data to improve the performance of machining operations like face turning, dri

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11

Kalidasan, R., V. Ramanuj, D. K. Sarma, and S. Senthilvelan. "Influence of Cutting Speed and Offset Distance over Cutting Tool Vibration in Multi-Tool Turning Process." Advanced Materials Research 984-985 (July 2014): 100–105. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.100.

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Multi-tool turning process employs more than one cutting tool for machining the work piece simultaneously. In the conventional turning process, effect of machining parameters over cutting forces, vibration, work piece surface finish and dimensional tolerances have been discussed in detail, however no attempt has been made in the multi-tool turning process. Cutting tool vibration is very important as it reveals the condition of cutting tool as well as work piece quality. In this study, a second cutting tool is introduced at the rear side of the lathe with some distance from conventional front c

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Sekiya, Katsuhiko, Ryo Tezuka, Yasuo Yamane, and Keiji Yamada. "Mirror Finishing of Austenitic Stainless Steel with a Cermet Insert." Key Engineering Materials 407-408 (February 2009): 384–87. http://dx.doi.org/10.4028/www.scientific.net/kem.407-408.384.

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Stainless steel SUS304 is one of the typical difficult-to-cut materials due to strong tendency to adhesion and work hardening. Therefore finished surface becomes rough in machining operations. In this report, precision cutting of SUS 304 is discussed. Surface roughness depends on accuracy of the machine tool, adhesion and roughness of tool flank. We analyzed the factors of surface roughness in turning of SUS304 on an engine lathe. M20 tungsten carbide inserts, coated carbide inserts and cermet inserts were used. Peak-to-valley height of machined surface included approximately 1μm of machine er

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Molenda, Justyna. "The Experimental Investigation of Surface Roughness After Dry Turning of Steel S235." Journal of KONES 26, no. 4 (2019): 179–84. http://dx.doi.org/10.2478/kones-2019-0106.

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AbstractNowadays lot of scientific work inspired by industry companies was done with the aim to avoid the use of cutting fluids in machining operations. The reasons were ecological and human health problems caused by the cutting fluid. The most logical solution, which can be taken to eliminate all of the problems associated with the use of cooling lubricant, is dry machining. In most cases, however, a machining operation without lubricant finds acceptance only when it is possible to guarantee that the part quality and machining times achieved in wet machining are equalled or surpassed. Surface

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Brown, Ian, and Julius Schoop. "An Iterative Size Effect Model of Surface Generation in Finish Machining." Journal of Manufacturing and Materials Processing 4, no. 3 (2020): 63. http://dx.doi.org/10.3390/jmmp4030063.

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In this work, a geometric model for surface generation of finish machining was developed in MATLAB, and subsequently verified by experimental surface roughness data gathered from turning tests in Ti-6Al4V. The present model predicts the behavior of surface roughness at multiple length scales, depending on feed, nose radius, tool edge radius, machine tool error, and material-dependent parameters—in particular, the minimum effective rake angle. Experimental tests were conducted on a commercial lathe with slightly modified conventional tooling to provide relevant results. Additionally, the model-

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Aswin, Fajar, Nanda Pranandita, Ary Kiswanto, Syahdan Hafiz, and Zaenal Zaenal. "Alat Bantu Penggerindaan Slideways Mesin Bubut." Manutech : Jurnal Teknologi Manufaktur 9, no. 02 (2019): 76–83. http://dx.doi.org/10.33504/manutech.v9i02.50.

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Lathe is a tool that rotates the work-piece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, or deformation, facing, turning, with tools that are applied to the work-piece to create an object with symmetry about that axis. There are several considerations that affect the lathe to work well, especially geometrical deviations that affect the quality degradation of the product in terms of shape and dimensions. One of the wear on the slide-way of the lathe can affect geometric aberrations. This paper discusses the design and manufacture of grind

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Ribeiro, Marcos Valério, and André Luís Habib Bahia. "Study of the Turning Nickel Base Alloy Pyromet^® 31V (SAE HEV8)." Advanced Materials Research 278 (July 2011): 312–20. http://dx.doi.org/10.4028/www.scientific.net/amr.278.312.

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Considering the constant technological developments in the aeronautical, space, automotive, shipbuilding, nuclear and petrochemical fields, among others, the use of materials with high strength mechanical capabilities at high temperatures has been increasingly used. Among the materials that meet the mechanical strength and corrosion properties at temperatures around 815 °C one can find the nickel base alloy Pyromet® 31V (SAE HEV8). This alloy is commonly applied in the manufacturing of high power diesel engines exhaust valves where it is required high resistance to sulphide, corrosion and good

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17

Zeng, Li Xin, and Hong Mei Lu. "Research on Stability of Intelligent Control System for Turning with Management Method." Advanced Materials Research 1022 (August 2014): 411–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1022.411.

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With application in turning, this paper presents a stability control system which based on a new strategy. It works by permanent assessment of the operating point position system which is relative to the stability limit and process parameter, in-process modification. For example, this point is always placed in the stable domain that gives the highest process performance. In the case of turning, here approached: first, this area is the stability limit proximity; second, the operating point system position is determined by assessing a cutting force monitored signal feature, last, it changed this

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Nurul Amin, A. K. M., Fawaz Mohsen Abdullah, Ummu Atiqah Khairiyah B. Mohammad, and Muammer Din Arif. "Development and Implementation of a Method for Chatter Control in Turning Applying Magnet from below the Tool." Applied Mechanics and Materials 394 (September 2013): 205–10. http://dx.doi.org/10.4028/www.scientific.net/amm.394.205.

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Chatter is a self-excited and violent form of vibration which is almost unavoidable in all machining processes. It affects surface roughness, machining accuracy, cutting tool and machine tool life, metal removal rate; and consequently operation cost. This research work focuses on investigation of the influence of the cutting parameters on chatter and implementation of a method based on application of permanent magnet for controlling chatter during turning of stainless steel AISI 304 using coated carbide tool. For this purpose, a powerful permanent bar magnet (of strength 1250-1350 Gauss) was p

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19

KHAN, AKHTAR, and KALIPADA MAITY. "3D FINITE ELEMENT MODELING FOR ESTIMATING KEY MACHINABILITY ASPECTS IN TURNING OF COMMERCIALLY PURE TITANIUM." Surface Review and Letters 26, no. 01 (2019): 1850136. http://dx.doi.org/10.1142/s0218625x18501366.

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The present work aims at numerical approximation in combination with experimental validation of some of the important performance measures in turning of commercially pure titanium (CP-Ti) with uncoated carbide inserts. A three-dimensional (3D) finite element model was developed based on Lagrangian criterion. Simulation of the turning operation was performed using DEFORM 3D software in order to approximate the responses viz. feed force ([Formula: see text], radial force ([Formula: see text], tangential force ([Formula: see text], flank wear (Vb) and machining temperature ([Formula: see text]. U

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Nurul Amin, A. K. M., Ummu Atiqah Khairiyah Mohamad, and Muammer Din Arif. "Implementation of Magnetic Damping to Reduce Chatter Amplitude and Tool Wear during Turning of Stainless Steel AISI 304." Applied Mechanics and Materials 607 (July 2014): 171–75. http://dx.doi.org/10.4028/www.scientific.net/amm.607.171.

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Machine tool chatter is a type of intensive self-excited vibration of the individual components in a machine-tool-fixture-work system. Chatter affects the cutting process and may lead to negative effects concerning surface quality, cutting tool life, and machining precision. However, modern manufacturing industries and their end users demand fine surface finish, high dimensional accuracy as well as low operation costs which include the cost of tooling. Therefore, any effective damping technique, which reduces or eliminates chatter, will significantly improve tool life and will be a profitable

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21

Kozlov, Victor, Jia Yu Zhang, Jian Cui, and Maria Bogolyubova. "Split Cutter Method for Contact Stresses Research over Flank Surface of a Cutter." Key Engineering Materials 743 (July 2017): 258–63. http://dx.doi.org/10.4028/www.scientific.net/kem.743.258.

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The paper presents a method for of contact load (stress) research over a flank land of a cutter by a “split cutter” (sectional cutter) method which is more preferable in cutting steels and durable materials in industrial cutting mode. The research of contact stresses distribution over surfaces of a cutter must be carried out on the special rigid four-component dynamometer for the “split cutter” with inspection of total components of cutting force Pz and Py. However, the investigation of contact loads distribution over the flank land faces the problem due to elastic deformation of measuring ele

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A. Raof, Natasha, Nur Sofwati Daud @Ab Aziz, Abdul Rahman A. Ghani, Aishah Najiah Dahnel, Suhaily Mokhtar, and Nor Khairusshima Muhamad Khairussaleh. "CUTTING TOOL PERFORMANCE IN TURNING OF AL 7075-T651 ALUMINIUM ALLOY." IIUM Engineering Journal 21, no. 2 (2020): 177–85. http://dx.doi.org/10.31436/iiumej.v21i2.1227.

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Recently, almost 70% of a commercial jetliner’s airframe is made of aluminium alloys. It is predicted that the application of aluminium alloy is to increase up to 65% by the year 2025. They are typically used because of their high strength to weight ratio. However, there are some drawbacks during machining aluminium alloy such as the adhesion wear and built-up edge (BUE) formation that can shorten tool life. As the tool wears, the machining performance, surface roughness, and cutting tool life are affected significantly. A lot of studies were conducted in order to minimize this critical issue.

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Nakaminami, Masamitsu, Tsutomu Tokuma, Kazuhiko Matsumoto, Sachinori Sakashita, Toshimichi Moriwaki, and Keiichi Nakamoto. "Optimal Structure Design Methodology for Compound Multiaxis Machine Tools-III - Performance Evaluation -." International Journal of Automation Technology 2, no. 1 (2008): 70–77. http://dx.doi.org/10.20965/ijat.2008.p0070.

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Compound multiaxis machine tools are developed for machining of high-value-added parts throughintegrating milling and turning operations. Due to the complexity of the configuration and the functional versatility required for a compound machine tool, machining accuracy, productivity, and return on investment (ROI) remain to be improved. Design methodology has been widely studied to design high-performance compound multiaxis machine tools. We evaluated their performance in this study, finding that a V guide effectively improves movement accuracy in the X, Y, and Z directions. Cutting tests condu

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Nakaminami, Masamitsu, Tsutomu Tokuma, Kazuhiko Matsumoto, Sachinori Sakashita, Toshimichi Moriwaki, and Keiichi Nakamoto. "Optimal Structure Design Methodology for Compound Multiaxis Machine Tools-III - Performance Evaluation -." International Journal of Automation Technology 2, no. 1 (2008): 70–77. http://dx.doi.org/10.20965/ijat.2008.p0071.

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Compound multiaxis machine tools are developed for machining of high-value-added parts throughintegrating milling and turning operations. Due to the complexity of the configuration and the functional versatility required for a compound machine tool, machining accuracy, productivity, and return on investment (ROI) remain to be improved. Design methodology has been widely studied to design high-performance compound multiaxis machine tools. We evaluated their performance in this study, finding that a V guide effectively improves movement accuracy in the X, Y, and Z directions. Cutting tests condu

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Wojtko, Kamil, and Piotr Frąckowiak. "Modeling the process of shaping worm gears of spiroid gear." Mechanik 91, no. 1 (2018): 24–27. http://dx.doi.org/10.17814/mechanik.2018.1.3.

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The article presents various methods of shaping cylindrical spiroid worm gear of asymmetrical outline using two tools. Cutting thread of worm gears is made on CNC lathes with blades in the form of universal inserts. Shows the geometric model and technological machining cylindrical worm gear spiroid on a CNC lathe. The correctness of the test results obtained in numerical developed program was tested through experimental studies of the process of cutting worm gears given parameters. Cutting process of worm gears was made on a lathe CTX210 using overlay ShopTurn in module for threading. The proc

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Fledrich, G., I. Pálinkás, and R. Keresztes. "Turning ZrO2 ceramics." International Review of Applied Sciences and Engineering 1, no. 1-2 (2010): 3–6. http://dx.doi.org/10.1556/irase.1.2010.1-2.1.

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Abstract In place of brittle ceramics used so far have appeared up-to-date so-called tough ceramic materials resisting better against mechanical effects [1]. Such material is the zirconium-dioxide, too. The important advantage of hard-turning is the applicability of universal tool. Various outlines can be formed by a tool given. Machining ceramics in case of using traditional machining (turning, milling, drilling) requires special technological conditions (tools, machine-tools, technological parameters, etc.) [2] which are developing presently. We would like extending our research work in this

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Laksono, Pringgo Widyo, Muslim Mahardika, Suyitno, and Punto Dewo. "Surface Characteristics of Indonesian Cortical Bone Screw." Advanced Materials Research 893 (February 2014): 349–52. http://dx.doi.org/10.4028/www.scientific.net/amr.893.349.

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Machining processed with various conditions form the surface characteristics of materials. Material processes needed for forming parts such as bone screws. This paper presents surface characteristics of bone screw for orthopedic implant that processed by conventional turning machine with various conditions. Manufacturing production in conventional way of bone screw connector is expected to produce same geometry, dimensions and quality as well as the product from abroad. The screws design type that used for cortical bone orthopedic implant known as cortical bone screw. Cortical screws have fine

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Nakaminami, Masamitsu, Tsutomu Tokuma, Kazuhiko Matsumoto, Sachinori Sakashita, Toshimichi Moriwaki, and Keiichi Nakamoto. "Optimal Structure Design Methodology for Compound Multiaxis Machine Tools - II - Investigation of Basic Structure -." International Journal of Automation Technology 1, no. 2 (2007): 87–93. http://dx.doi.org/10.20965/ijat.2007.p0087.

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Compound multiaxis machine tools are used to machine high-value-added parts through integrating milling and turning. Compound machine tools are generally structured based on a conventional NC lathe by incorporating Y axis and automatic tool changer (ATC) components for milling. Due to complexity of the structure and functional versatility required for a compound machine tool, accuracy, productivity, and return on investment (ROI) must be improved over conventional NC lathes and machining centers. In the sections that follow, we discuss design methodology for compound multiaxis machine tools, f

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Suzuki, Naohiko, Yoshitaka Morimoto, Keigo Takasugi, et al. "Development of Desktop Machine Tool with Pipe Frame Structure." International Journal of Automation Technology 9, no. 6 (2015): 720–30. http://dx.doi.org/10.20965/ijat.2015.p0720.

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While many components used in automobiles, household electric appliances, etc., are becoming more compact, the size of most machine tools used to work on such components remains unchanged. Therefore, to improve the efficient use of factory space and economical use of energy, machine tools that are comparable in size to workpieces are required. Thus far, we have focused our developmental efforts on the miniaturization of machine tools, e.g., a lathe with a width ten times the machining diameter of a workpiece and a lathe with a bed made of a pipe frame truss structure. Based on these past study

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Fledrich, G. "Machining the Zirconium-dioxide engineering ceramics." International Journal Sustainable Construction & Design 1, no. 1 (2010): 115–20. http://dx.doi.org/10.21825/scad.v1i1.20408.

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In place of brittle ceramics used so far have appeared up-to-date so called tough ceramicmaterials resisting better against mechanical effects [2]. Such material is the zirconium-dioxide, too.The important advantage of hard-turning is the applicability of universal tool. Various outlines can beformed by a tool given. Machining ceramics in case of using traditional machining (turning, milling,drilling) requires special technological conditions (tools, machine-tools, technological parameters, etc.)which are developing presently. We would like extending our research work in this course, too.

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Samardžiová, Michaela. "Wear of Cutting Tool with Excel Geometry in Turning Process of Hardened Steel." Research Papers Faculty of Materials Science and Technology Slovak University of Technology 24, no. 38 (2016): 95–102. http://dx.doi.org/10.1515/rput-2016-0044.

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Abstract This paper deals with hard turning using a cutting tool with Xcel geometry. This is one of the new geometries, and there is not any information about Xcel wear in comparison to the conventional geometry. It is already known from cutting tools producers that using the Xcel geometry leads to higher quality of machined surface, perticularly surface roughness. It is possible to achieve more than 4 times lower Ra and Rz values after turning than after using conventional geometry with radius. The workpiece material was 100Cr6 hardened steel with hardness of 60 ± 1 HRC. The machine used for

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Sultan, F. Abdullah, and R. Panneer. "Improving Machinability in Conventional Turning of Ti-6Al-4V Using Work Piece Pre-Heating with Standard Cutting Tools." Applied Mechanics and Materials 813-814 (November 2015): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amm.813-814.347.

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Machining hard to machine materials using conventional method of machining has proved to be very costly as these materials greatly affect the tool life because of poor machinability. One material that requires considerable study is Titanium which is a relatively lightweight material and provides excellent mechanical properties. The major problems in machining Titanium Alloys are the high cutting temperatures and rapid tool wear. Machining of Titanium using techniques like Laser Assisted Machining and Plasma Assisted Machining have proven to give high productivity rates, but the costs associate

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Fledrich, G., I. Pálinkás, R. Keresztes, L. Zsidai, and K. Petróczki. "Turning specialities of ZrO2 ceramics." International Journal Sustainable Construction & Design 2, no. 1 (2011): 59–65. http://dx.doi.org/10.21825/scad.v2i1.20436.

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In place of brittle ceramics used so far have appeared up-to-date so called tough ceramicmaterials resisting better against mechanical effects [6]. Such material is the zirconium-dioxide, too. Theimportant advantage of hard-turning is the applicability of universal tool. Various outlines can be formed bya tool given. Machining ceramics in case of using traditional machining (turning, milling, drilling) requiresspecial technological conditions (tools, machine-tools, technological parameters, etc.) which are developingpresently [2]. We would like extending our research work in this course, too.T

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MEHRA, DEEPAK, and KHUSHWANT RAKHECHA. "COMPARISON OF MECHANICAL PROPERTIES AND CALCULATION OF CUTTING FORCE BETWEEN UNCOATED TUNGSTEN CARBIDE & Ti COATED TIP TUNGSTEN CARBIDE WITH THE HELP OF LATHE TOOL DYNAMOMETER." International Journal of Modern Physics: Conference Series 22 (January 2013): 645–53. http://dx.doi.org/10.1142/s2010194513010799.

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The keyword for manufacturers of cutting tools and coatings for cutting tools is productivity: a 30%; reduction of tool costs, or a 50%; increase in tool lifetime results only in a 1%; reduction of manufacturing costs. But an increase in cutting data by 20%; reduces manufacturing costs by 15%;. In order to achieve higher productivity different approaches – High Performance Cutting (HPC) and High Speed Cutting (HSC) can be chosen. The performance of Carbide tools was studied to investigate the tool life and wear behavior at various machining parameters. This study presents tool wear characteriz

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Furdui, Filip, and Carmen Adriana Cîrstoiu. "Experimental Research on Surface Roughness in Turning of E355 Alloy Steel on CNC Machine Tool." Applied Mechanics and Materials 760 (May 2015): 385–90. http://dx.doi.org/10.4028/www.scientific.net/amm.760.385.

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This work suggests some possibilities of determination of cutting conditions for the cutting process.The most important factors affecting the surface roughness of machined sourfaces are the cutting parameters. It was shown in the paper the influence of finishing cutting regimes, for a given geometry of insert, on surface roughness of turned surfaces on CNC lathe, with higher cutting speeds than those used on conventional machine tools and with very small advances and cutting depths, thus explaining certain phenomena that occur in the cutting process.

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He, Lin Jiang, Jiu Hua Xu, Hong Hua Su, and Yan Chen. "Turning of Cast Inconel 718 with Coated Carbide and Whisker Reinforced Ceramic Tools." Materials Science Forum 770 (October 2013): 136–40. http://dx.doi.org/10.4028/www.scientific.net/msf.770.136.

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Nickel-based alloy is known as one of the most difficult-to-machine materials. During the machining process, the high temperature coupled with high strength and work hardening leads to excessive tool wear, short tool life, low productivity, etc. Tool life and material removal rate are the two targets of rough machining. In this paper, some turning tests are conducted to investigate the tool lives and material removal rate of coated carbide tools and whisker reinforced ceramic tools. The results show that notch wear is the dominant failure mode for whisker reinforced ceramic tools while severe

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Savilov, A. V., A. S. Pyatykh, and S. A. Timofeev. "Analysis of advanced transpedicular screw machining technologies." Proceedings of Irkutsk State Technical University 24, no. 6 (2021): 1190–98. http://dx.doi.org/10.21285/1814-3520-2020-6-1190-1198.

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Abstract: The purpose is to improve the machining efficiency of titanium alloy transpedicular screws on highperformance machine-tools based on the selection of advanced technological approaches, and to analyze the current manufacturing technology of implants on CNC machines of the semi-automatic longitudinal turning lathe type. The efficiency is assessed using the following criteria: process performance determined by the machine time and the quality of implant processing (surface roughness, geometric accuracy, mechanical properties). It is found that semi -automatic longitudinal lathes equippe

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Gutakovskis, Viktors, Eriks Gerins, Janis Rudzitis, and Artis Kromanis. "The Effect of the Cutting Parameters on the Machined Surface Roughness." Solid State Phenomena 260 (July 2017): 219–26. http://dx.doi.org/10.4028/www.scientific.net/ssp.260.219.

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From the invention of turning machine or lathe, some engineers are trying to increase the turning productivity. The increase of productivity is following after the breakout in instrumental area, such as the hard alloy instrument and resistance to wear cutting surfaces. The potential of cutting speed has a certain limit. New steel marks and cutting surfaces types allow significantly increase cutting and turning speeds. For the most operation types the productivity increase begins from the feeding increase. But the increase of feeding goes together with machined surface result decreasement. Meta

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Rohmana, Rohmana, and Alisha Setiani. "Analisis Postur Kerja Operator Mesin Bubut di PT. X." Jurnal METRIS 20, no. 2 (2019): 83–88. http://dx.doi.org/10.25170/metris.v20i2.2421.

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PT. X is one of the aerospace companies in Asia that has core competencies in the design and development of airplanes. The manufacture of aircraft certainly requires aircraft aids made by Machining tools. In this section there are many machine operators, of course, require interaction between humans and machines. However, there are some operators that still use conventional lathes. The research is analyzing the work posture of conventional lathe operators using the RULA (Rapid Upper Limb Assessment) method. The initial observation was to disseminate the Nordic Body Map questionnaire to 2 lathe

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de Lima, J. G., R. F. de Ávila, and A. M. Abrão. "Turning of hardened AISI 4340 steel using coated carbide inserts." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 221, no. 8 (2007): 1359–66. http://dx.doi.org/10.1243/09544054jem847.

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The machining of hardened steels employing polycrystalline cubic boron nitride and ceramic tooling has been comprehensively investigated over the last 20 years; however, the development of newer cemented carbide grades has extended the use of this group of materials to the machining of steels hardened up to 45 HRC (Rockwell C). The current paper is therefore concerned with continuous turning of AISI 4340 steel hardened from 250 to 525 HV using coated carbide tools in order to investigate whether this cutting tool grade is capable of providing a satisfactory performance when machining a steel w

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Sugimura, Nobuhiro, Shigeru Ueno, Nozomi Mishima, and Soichi Hachiga. "Design and Evaluation of a New-Type Multifunctional Machine Tool - Functional Requirements and Design -." Journal of Robotics and Mechatronics 9, no. 6 (1997): 427–33. http://dx.doi.org/10.20965/jrm.1997.p0427.

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The objective of this research is to develop a new type of flexible and multifunctional machine tool which can be integrated into such manufacturing processes as machining, inspection and the heat treatment of mechanical products. The functional requirements of the multifunctional machine tools were initially analyzed based on a questionnaire given to both the users and the designers of machine tools. The basic configuration of the machine tool is proposed to conform to the functional requirements. The configuration designed has two main spindles, for both the tool and the work, one subspindle

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Chen, Guang Jun, Yu Shuo Wang, Rui Xu, and Xian Li Liu. "Research on Vibration Characteristics of Hardened Steel Precision Machining Process." Key Engineering Materials 621 (August 2014): 63–68. http://dx.doi.org/10.4028/www.scientific.net/kem.621.63.

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Hard cutting technology is a green cutting technology of broad application prospect, but hard cutting is more likely to produce vibration compared with traditional cutting, and the production efficiency, machining quality, environment, cost and machine tools and tool life will be affected by the precision in the process of hard cutting chatter. Turning hardened steel GCr15 cylindrical bar using PCBN inserts on the lathe CAK6150DI analyzed the cutting vibration signal characteristic in the different state of cutting tool; analyzed the related features of dynamic cutting force and cutting vibrat

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Anikeeva, Olesya, Alexander Ivakhnenko, and Oleg Erenkov. "Bases of variational method for calculating of metal-cutting systems accuracy." MATEC Web of Conferences 224 (2018): 01038. http://dx.doi.org/10.1051/matecconf/201822401038.

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The bases of a variation method to calculate the metal-cutting systems accuracy for the first time are systemically stated in this paper. The main attention is paid to a problem of joint influence of geometrical accuracy of machine tools and cutting tools parameters on the details processed surfaces accuracy. The general mathematical model of metal-cutting systems accuracy is presented in this work. The general model is the basis to develop the full mathematical model of turning metal-cutting system accuracy. The results of accuracy modeling at turning with a wide cutter are received when stud

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Fernando Rodrigues Valente, Jorge, Giliane Corrêa Pereira, David Barbosa de Alencar, Carlos Alberto Oliveira de Freitas, and Antônio Estanislau Sanches. "CAD / CAM Application for the Development of Submerged Pump Maintenance Tools." International Journal for Innovation Education and Research 7, no. 11 (2019): 817–28. http://dx.doi.org/10.31686/ijier.vol7.iss11.1937.

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The design and implementation of maintenance tools is used in CAD / CAM tools, in order to make the necessary improvements in the whole process of disassembly of the equipment in question, and mainly to reduce the process time and eliminate the risk. breaking the most fragile parts of the equipment. The objective of the work is to elaborate the toolkit, to reduce the disassembly time and to eliminate damage to the equipment and its respective trajectories, with which the machine performs the machining of the designed drawing, were applied to the resources through a CNC language. (Computer Nume

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Nicolescu, Florin Adrian, Andrei Mario Ivan, Georgia Cezara Avram, and Adrian Theodor Mantea. "New Design Concepts in Computer Assisted Design of Robotic Flexible Manufacturing Cell for Part's Turning." Applied Mechanics and Materials 760 (May 2015): 175–80. http://dx.doi.org/10.4028/www.scientific.net/amm.760.175.

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This paper presents the works performed by the authors in the field of robotic machine tending applications, focusing on flexible manufacturing cells (FMC) integrating industrial robots (IR) performing CNC machine tool's and machining center's loading / unloading tasks. Considering different types of parts typically manufactured and a rough classification of these parts with respect to their specific shape and size, a three manufacturing cell design principles are proposed for different work piece category. Following these general guidelines, for each proposed principle, an example of cell str

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Bodnarchuk, Andrey I., and Pavel V. Petrov. "THE VERTICAL ARRANGEMENT OF LATHE MACHINING CENTERS: THE TREND OF MACHINE TOOLS OR JUST A VARIETY OF MACHINES?" Interexpo GEO-Siberia 7, no. 1 (2020): 10–13. http://dx.doi.org/10.33764/2618-981x-2020-7-1-10-13.

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The article analyzes vertical lathes from a retrospective point of view, defines the stages of formation and development of such machines. The advantages of vertical lathes are analyzed, and an attempt is made to find out the prospects for the development of such machines. The purpose of this work is to clarify the scope of rational use of vertical lathes. The results of calculations proving the advantages of such machines in terms of saving production space in comparison with the horizontal layout are presented.

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Zhao, Hong Lin, Qing Fu Wang, Wei Hua Li, et al. "Research on Machine Tool Components Contribution Calculation and the Weak Link Identification of the Whole Machine." Applied Mechanics and Materials 52-54 (March 2011): 1496–502. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1496.

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After modeling and calculating of whole machine, the static and dynamic characteristics are obtained, since it is difficult not only to judge out machine components’ influence on machining precision intuitively , but also to identify the weak link of the whole machine. Therefore, through extracting key nodes coordinates of machine components and deformation information of finite element software calculated, we brought forward a space vector transfer algorithm, calculated the contribution of components for tools and work piece system and expressed impact of machine components on tool and work p

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Chinnuraj, Shanmugam, PR Thyla, S. Elango, et al. "Static and dynamic behavior of steel-reinforced epoxy granite CNC lathe bed using finite element analysis." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 234, no. 4 (2020): 595–609. http://dx.doi.org/10.1177/1464420720904606.

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Machine tools are used to manufacture components with desired size, shape, and surface finish. The accuracy of machining is influenced by stiffness, structural damping, and long-term dimensional stability of the machine tool structures. Components machined using such machines exhibit more dimensional variations because of the excessive vibration during machining at higher speeds. Compared to conventional materials like cast iron, stone-based polymer composites such as epoxy granite have been found to provide improved damping characteristics, by seven to ten folds, due to which they are being c

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Zębala, Wojciech, and Robert Kowalczyk. "Cutting Data Influence on Cutting Forces and Surface Finish during Sintered Carbide Turning." Key Engineering Materials 581 (October 2013): 148–53. http://dx.doi.org/10.4028/www.scientific.net/kem.581.148.

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The paper presents research of turning of super hard materials, like sintered carbides, with PCD (polycrystalline diamond) tools. Sintered carbides with cobalt, as metal binder, with good properties of abrasion resistant in high temperature environment are used as construction material. These materials, produced by a powder metallurgy process, are difficult-to-machine because of their high hardness and brittleness. In the work, a special attention was paid on the cutting force component Fc and surface finish, in the form of roughness parameter Ra, at variable cutting data (cutting speed vc, fe

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Zhang, Yao Man, Yong Chen, and Hu Li. "Temperature Field Analysis and Thermal Error Testing for CNC Machine Tool's Headstock." Advanced Materials Research 889-890 (February 2014): 316–20. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.316.

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The dynamic and thermal characteristics of spindle assembly will affect the final machining performance of a machine tool seriously. It is of great significance to study the dynamic and thermal characteristics of the spindle assembly for improving the level of machine tool's design and manufacturing. The paper takes a high precision computer numerical control lathe as the research object. First the thermal characteristics were obtained by using finite element method. Then the laser triangle measuring instrument and the infrared thermal imager were used to measure the temperature field and ther

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