Academic literature on the topic '3D CNC machining module'
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Journal articles on the topic "3D CNC machining module"
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Miądlicki, Karol, Marcin Jasiewicz, Marcin Gołaszewski, Marcin Królikowski, and Bartosz Powałka. "Remanufacturing System with Chatter Suppression for CNC Turning." Sensors 20, no. 18 (2020): 5070. http://dx.doi.org/10.3390/s20185070.
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The paper presents the concept of a support system for the manufacture of machine spare parts. The operation of the system is based on a reverse engineering module enabling feature recognition based on a 3D parts scan. Then, a CAD geometrical model is generated, on the basis of which a machining strategy using the CAM system is developed. In parallel, based on the geometric model, a finite element model is built, which facilitates defining technological parameters, allowing one to minimize the risk of vibrations during machining. These parameters constitute input information to the CAM module. The operation of the described system is presented on the example of machining parts of the shaft class. The result is a replacement part, the accuracy of which was compared by means of the iterative closest point algorithm obtaining the RMSE at the level of scanner accuracy.
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Wu, Wen Liang, Xia Jie Jin, and Ke Li Xing. "The CAD/CAM of Hydraulic Valve Block Based on Pro/Engineer." Advanced Materials Research 383-390 (November 2011): 12–17. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.12.
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This paper uses the Pro/E software for 3D solid modeling and use its Pro/NC module automatically generated NC code of valve block, and communication with CNC machining centers and data transmission to achieve CAD/CAM integration purposes.
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Nguyen, Trung Kien, Lan Xuan Phung, and Ngoc-Tam Bui. "Novel Integration of CAPP in a G-Code Generation Module Using Macro Programming for CNC Application." Machines 8, no. 4 (2020): 61. http://dx.doi.org/10.3390/machines8040061.
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In the modern manufacturing industry, the role of computer-aided process planning (CAPP) is becoming increasingly crucial. Through the application of new technologies, experience, and intelligence, CAPP is contributing to the automation of manufacturing processes. In this article, the integration of a proposed CAPP system that is named as BKCAPP and G-code generation module provides a completed CAD–CAPP–CNC system that does not involve any manual processing in the CAM modules. The BKCAPP system is capable of automatically performing machining feature and operation recognition processes from design features in three-dimensional (3D) solid models, incorporating technical requirements such as the surface roughness, geometric dimensions, and tolerance in order to provide process planning for machining processes, including information on the machine tools, cutting tools, machining conditions, and operation sequences. G-code programs based on macro programming are automatically generated by the G-code generation module on the basis of the basic information for the machining features, such as the contour shape, basic dimensions, and cutting information obtained from BKCAPP. The G-code generation module can be applied to standard machining features, such as faces, pockets, bosses, slots, holes, and contours. This novel integration approach produces a practical CAPP method enabling end users to generate operation consequences and G-code files and to customize specific cutting tools and machine tool data. In this paper, a machining part consisting of basic machining features was used in order to describe the method and verify its implementation.
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Wan, Jin Gui, and Wei Ding. "Research and Application of CAD/CAM Technology in NC Machining of Part with Complex Surface." Applied Mechanics and Materials 602-605 (August 2014): 111–16. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.111.
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The development of modern advanced manufacturing technology greatly relies on the CAD / CAM technology. Many pieces of computer software with CAD/CAM function have been developed rapidly in recent years. Unigraphics (UG) is one of the outstanding representatives. It has a powerful design and CNC programming function, and CAD/CAM seamless connectivity. As an application example, a mouse model part which has complex surface was designed and trial-manufactured with CNC machine. First, the 3D model of the part was created in the modeling module of UG software. Then, the process scheme was developed after analyzing. In the manufacturing module of UG software, the NC machining parameters were set according to the processing requirements, the tool paths were generated, edited and checked, and the NC codes were generated by post processing. And then, the NC machining was simulated in YULONG software. Finally, the part was manufactured in a 3-axis CNC milling machine. It has desirable shape and high accuracy. The results show that UG has a perfect CAD/CAM function. The CAD/CAM technology based on UG makes the NC machining of complex surface part very convenient. It improves the efficiency of design and machining, shortens the manufacturing cycle, and reduces the cost, which reflects the importance of the CAD/CAM software in NC machining. The method described in this paper can provide valuable reference for processing similar parts, and it is also useful for related study.
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Wan, Jin Gui, Fei Zhang, Bei Hua Li, and Qi Gao. "Study on Numerical Control Machining Technology of Full-Surface Part." Advanced Materials Research 510 (April 2012): 384–89. http://dx.doi.org/10.4028/www.scientific.net/amr.510.384.
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A complex part, which has curved surface overall, is trial-manufactured with CNC machine. The NC machining process and technology of this full-surface part are studied in this paper. First, the 3D model of the part is created in the modeling module of UG system. Then, process analysis and scheme are developed. As the part has an irregular shape and the entire surface is to be NC machined, there are many difficulties during processing. The optimized process plan is determined. In the manufacturing module of UG system, the NC machining parameters are set according to the processing requirements, the tool paths are generated, edited and checked, and the NC code is generated by post processing. Finally, the part is manufactured using a 3-axis CNC milling machine with the NC programs. It has desirable shape and high accuracy. The result shows that the NC process is reasonable and efficient. CAD/CAM integration technology is applied successfully in this example. The methodology and technology introduced in this paper can provide valuable reference for processing similar parts, and it is also useful for correlational study.
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Ni, Jun Fang, Wei Fan, and Ye Kuan Duan. "Construction of Virtual CNC Machining System Based on 3DS and Open GL." Applied Mechanics and Materials 220-223 (November 2012): 414–17. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.414.
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Virtual CNC machining is test cutting and process optimization of virtual reality before production, which overcomes defects of interferences and collisions while the real workpiece is fabricated. The 3D scenario of Virtual CNC machining system is constructed by 3DS and Open GL on VC++6.0 platform. This system mainly encompasses modules of machine modeling, simulation of virtual cutting and its control panel. Key technologies solve 3DS file reading, simulation control by Open GL back buffer and implementation of control items on control panels respectively, so practicability of CNC system is improved greatly.
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Chan, Sunny, Sammy Wong, Tom C. Kong, and Ru Du. "Development of a Millimeter Scale Turning Centre for Gear Hobbing." Key Engineering Materials 364-366 (December 2007): 249–53. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.249.
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Conventional machining is generally preferred in manufacturing metal components with 2½D features and/or 3D silhouettes. With the ever increasing demand for reduced sizes and increased accuracy, however, traditional machine tools have become ineffective for cutting miniature components. A typical example is gear manufacturing. It is known that gears are machined using the gear hobbing process in which the cutter axis and the workpiece axis are required to be synchronized to an accurate constant ratio. According to a market survey, only a few machine tools can make gears with the size of φ1.0 mm. This paper presents our effort in developing a PC-based millimeter scale CNC turning centre with gear hobbing capability to machine miniature gears. In this machine, the synchronization required by the gear hobbing process was achieved directly by controlling the AC servomotors. Experiment results show that the machine is able to machine high quality components with diameter as small as 0.075 mm and hob gears with module as small as 0.09.
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Phung, Lan Xuan, Dich Van Tran, and Sinh Vinh Hoang. "Development of assistance system for process planning in machining part." Science and Technology Development Journal 20, K6 (2017): 43–50. http://dx.doi.org/10.32508/stdj.v20ik6.1170.
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Process planning is an important bridge between design and machining in a manufacturing system. However, this process in Vietnam is mostly done manually. At that time, process planning needs quite a lot of effort and time of the engineer. In modern manufacturing, CAD/CAM/CNC integrated technology has developed so much. However, the development of computer-aided process planning (CAPP) is limited and has not caught with the rapid development of CAD/CAM technology. This article presents the methodology for developing and building computer-aided process planning systems for prismatic parts. In this system, the entire feature recognition and some basic modules of the process planning, such as equipment selection as well as operation sequences, are carried out automatically based on diversity database suitable for practical production. The system automatically generates a process planning instruction sheet directly from the solid 3D model in the SolidWorks environment. Testing of the system shows that process planning preparation time is reduced by up to 10 times compared to the manual method while ensuring technical requirements are met.
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Huang, Hai Peng, Zhen Long Wang, and J. M. Zheng. "Development of a CNC System for Multi-Axis EDM and its Realization." Key Engineering Materials 392-394 (October 2008): 50–54. http://dx.doi.org/10.4028/www.scientific.net/kem.392-394.50.
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This paper presents a new kind of multi-axis electro-discharge machining (EDM) computer numerical control (CNC) system which is based on RT-Linux platform. Binary kernel structure of EDM CNC System is proposed to handle real-time task and time-sharing task separately. The system is divided into three parts: CNC kernel module, CNC driver module and CNC user module. CNC kernel module implements CNC control function in of the software system, and implements the move control to the NC machine. CNC driver module is just as device driver level. CNC user module is user manage procedure. The experiment of rimed turbine blisk validates the performance of the system. The performance implied that the system is real-time, stable and reliable.
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Xu, Sha, En Qi Wu, and Guo Liu. "Study and Implementation of CNC Lathe Machining Simulation System." Applied Mechanics and Materials 395-396 (September 2013): 1222–26. http://dx.doi.org/10.4028/www.scientific.net/amm.395-396.1222.
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Virtual manufacturing technology is used to simulate the computer numerical control (CNC) lathe, virtual prototype of the CNC lathe is established. In the simulating process, the explain module and the check module of the CNC code are analyzed, the differential radial dynamic scaling technology is used to simulate the workpiece forming process, then the motion simulation of the virtual CNC lathe system is realized, and the system is drived by the CNC code. The machining process and workpiece forming process can be observed directly in the virtual environment, so the correctness of the CNC code can be checked in advance to avoid the interference, collisions or other problems in the actual lathe processing and reduce the the scrap rate of the workpiece and tool in the actual machining process.
Dissertations / Theses on the topic "3D CNC machining module"
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Horák, Michal. "Tříosá pracovní jednotka." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400918.
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The thesis deals with choosing the appropriate conception for a 3D CNC machining module, design, and construction of the given machine. This work is laid out into several parts that deal with automated production assemblies, appropriate construction alternate design, design of the selected machining module, and FEM method.
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Vinkler, Tomáš. "Aplikace CAD/CAM softwaru PowerMILL 6.0 při 3D obrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228540.
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The diploma thesis contains detailed processing of a two-piece car form by means of possible accessible 3D strategies of CAM system PowerMILL, selecting of tools, economical evaluation and creation of NC program for CNC machining centre.
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Kopcík, Daniel. "Technologie výroby tvarové součásti víceosým CNC obráběním." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232185.
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The theoretical part of this thesis is introducing basic information in production of shaped components on CNC machines. It describes each steps from a design of the component to production. Main target is summarization of available modern technologies that can be used. Experimental part uses these modern technologies for processing design shaped component. It describes process of design 3D model part in CAD system, subsequently creation of program for machining in CAM system and solves production of part on CNC machine. The aim of this thesis is design part with interesting design and production difficult enough to represent company, where it was made.
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Šebánek, Jan. "VYUŽITÍ 3D TECHNOLOGIÍ VE VEŘEJNÉM PROSTORU." Doctoral thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2016. http://www.nusl.cz/ntk/nusl-240509.
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The aim of this thesis is to define the impact of rapid prototyping technology in terms of creative potential to use this technology represents a particularly sculpture and architecture. Rapid Prototyping is a generic term covering a range of technologies: 3D scan converting the already realistic three-dimensional objects in computer memory, parametric modeling, which creates three-dimensional objects based on the formative algorithms, photogrammetry method of compiling three-dimensional object from a photo, technology, 3D printing materializing after each layer objects transferred from the computer's memory. When processing the theoretical work will be explored and discussed possibilities for realization of basic three-dimensional objects using 3D technology. The second step will be to map the different methods of access to artists working with 3D technology. In the end it tried to evaluate the benefits of these technologies in the field of sculpture and architecture in terms of traditional approaches. This paper attempts to describe the possible implications and potential of this progressive field in the classical artistic disciplines such as sculpture and architecture, both in terms of benefits and in terms of the eventual negative impact with respect to increasing the availability of this technology.
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Perini, Matteo. "Additive manufacturing for repairing: from damage identification and modeling to DLD processing." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/268434.
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The arrival on the market of a new kind of CNC machines which can both add and remove material to an object paved the way to a new approach to the problem of repairing damaged components. The additive operation is performed by a Direct Laser Deposition (DLD) tool, while the subtractive one is a machining task. Up to now, repair operations have been carried out manually and for this reason they are errors prone, costly and time consuming. Refurbishment can extend the life of a component, saving raw materials and resources. For these reasons, using a precise and repeatable CNC machine to repair valuable objects is therefore very attractive for the sake of reliability and repeatability, but also from an economical and environmental point of view. One of the biggest obstacles to the automation of the repairing process is represented by the fact that the CAM software requires a solid CAD model of the damage to create the toolpaths needed to perform additive operations. Using a 3D scanner the geometry of the damaged component can be reconstructed without major difficulties, but figuring out the damage location is rather difficult. The present work proposes the use of octrees to automatically detect the damaged spot, starting from the 3D scan of the damaged object. A software named DUOADD has been developed to convert this information into a CAD model suitable to be used by the CAM software.
DUOADD performs an automatic comparison between the 3D scanned model and the original CAD model to detect the damaged area. The detected volume is then exported as a STEP file suitable to be used directly by the CAM. The new workflow designed to perform a complete repair operation is described placing the focus on the coding part. DUOADD allows to approach the repairing problem from a new point of view which allows savings of time and financial resources.
The successful application of the entire process to repair a damaged die for injection molding is reported as a case study. In the last part of this work the strategies used to apply new material on the worn area are described and discussed. This work also highlights the importance of using optimal parameters for the deposition of the new material. The procedures to find those optimal parameters are reported, underlying the pros and cons. Although the DLD process is very energy efficient, some issues as thermal stresses and deformations are also reported and investigated, in an attempt to minimize their effects.
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Chen, Shung-Tong, and 陳順同. "Development of Vertical Micro CNC Electrical Discharge Machining Center and Research of Micro 3D Parts Machining." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/76447182009905163511.
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碩士<br>國立雲林科技大學<br>機械工程技術研究所<br>85<br>The tiny 3D components, such as optical fiber connector, micro-die and punch, non-spherical optical lens and tiny gears, are broadly used in the industries with significant add-on value. The micro-EDM technique is appropriate for producing those tiny parts. Thus, various machining properties of micro-EDM technique are researched inthis paper. In micro-EMD, the electrode wear may result in significant loss of machining accuracy. With CAD/CAM technique, this problem is compensated by designing contouring path with different directions in this research. From the experiments in the laboratory, it is shown there exists certain improvement in dimension accuracy, geometry accuracy as well as surface roughness.
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FANG, XIU-BO, and 方秀博. "Multi-axis CNC machining forming by ceramics powder process combined with 3D scanning." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/qd67qs.
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碩士<br>國立臺灣科技大學<br>機械工程系<br>105<br>The purpose of this research is to transmit an idea ultilizing copying mode to construct rapid modeling, getting 3D model of the targets with 3D scaning techniques ultilizing light reflection instead of contacting, in spite of copying the model of the original target, it could edit the appearance with personal preference to make the new model.
The material uses traditional ceramic compact and processes before sintering. Ultilizing four-axis machining of CAD(Computer Aided Design) and CAM (Computer Aided Manufacturing) manufacturing techniques to reach the goal of rapid manufacture products and diverse changes.
According the upper experiment results, Artec Spider is the most proper scaning machine.The main reason is that it could scan the target with high reflectivity directly and completely.And it have wide scaning range, portableness , high resoution and precision.
The cross section of the compact has a dense structure without obvious edges and 2MPa fracture strengthness which could process basicly. Best processing condition: depth max 5mm, rotational speed under 1000rpm and feed rate was 400mm/min.
Example testing finds that the working surfaces don't have micro cracks and shape changing after sintering, and it could prove that the idea is workable.
It could be used in producing customized products for artificial teeth, bones and art works with metal, non-metal and new ceramic matreials in the future.
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Oliveira, Hugo Miguel Lopes de. "Development, programming and start-up of an interchangeable 3D-printing module." Master's thesis, 2017. http://hdl.handle.net/10400.8/3254.
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This report has as main objective the development and application of a 3D printing module (additive manufacturing) in a computer numeric control (CNC) milling machine (subtractive manufacturing) creating a hybrid manufacturing environment that could offer the advantages of both methods. Every CNC milling machine using this 3D printing module could be converted in a 3D printer by changing from a regular tool to the 3D printing module which is applied in the spindle of the machine in a very simple process. This module is equipped with a system capable of reading the spindle rotation speed, and uses that information to set up different commands and actions.
Focused in the development of a low-cost system, there is used an Arduino board to control all the systems needed to work with the module. Most of the parts of the module are printed in a 3D printer that uses the stereolithograph technology, being able to create parts with complex shapes, high precision and good surface finishing.
The experimental results obtained in the first tests were not as expected. Many problems that haven’t been taken in consideration when the initial development of the module was done. Many solutions were found and some corrections were done to eliminate or minimize those problems.
The temperature control system and the revolutions per minute reading system shown very good results in the experimental tests.
The biggest issue faced was related with filament feeding system. Many structural modifications were implemented to improve it, with better performance, obtaining acceptable final results, however with significant possibilities for improvement.
Book chapters on the topic "3D CNC machining module"
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Lalegani Dezaki, Mohammadreza, and M. K. A. Mohd Ariffin. "Post-processing of FDM 3D-Printed Polylactic Acid Parts by CNC Trimming." In Materials Forming, Machining and Tribology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68024-4_11.
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Ma, Z. Y., Y. P. Chen, C. M. Yuan, and Z. D. Zhou. "An Efficient 3D Registration Method Using Markerless Image in AR-Based CNC Machining Simulation." In Advances in Artificial Reality and Tele-Existence. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11941354_19.
Full textConference papers on the topic "3D CNC machining module"
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Mendoza López, Edgar A., Hugo I. Medellín Castillo, Dirk F. de Lange, and Theo Lim. "A New Method for the Generation of Tool Paths for Finishing Near Net Shape Components." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65483.
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The CNC machining has been one of the most recurrent processes used for finishing NNS components. This paper presents a new method for the generation of tool paths for machining 3D NNS models. The proposed approach comprises two machining stages: rough cut and finish cut, and three types of cutting tools: ball-end mill, flat-end mill and fillet-end mill. The proposed tool path generation algorithm is based on: (1) approximation of the model surfaces by points using slice planes and visibility analysis, (2) accessibility analysis of the tool, (3) approximation error and tolerance evaluation, (4) collision analysis of tool and tool holder. The tools paths generated are exported as a CNC program. The implementation was carried out in C++ using the ACIS® geometric modeling kernel to support the required geometric operations. To prove the effectiveness of the system several models with variable geometric complexity were tested. The results have shown that the proposed system is effective and therefore can be used to generate the tool paths required for finishing 3D NNS components.
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Wasfy, Tamer M., Ayman M. Wasfy, Hazim El-Mounayri, and Daniel Aw. "Virtual Training Environment for a 3-Axis CNC Milling Machine." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84689.
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A virtual training environment for a 3-axis CNC milling machine is presented. The key elements of the environment are: (a) textured 3D photo-realistic virtual models of the machines and lab; (b) machine simulator for the machines’ controls and moving parts; (c) semi-empirical model of the machining operation; (d) hierarchical knowledge-base for process training; (e) unstructured knowledge-base for lecture delivery; (f) natural-language human-like intelligent virtual tutors. Applications of the AVML include: training students to operate manufacturing machines in a safe environment, allowing students and researchers to view and interact with highly accurate physical simulation of manufacturing machines, and optimization of the manufacturing process plan by testing various plans on the virtual machine before actual machining. The virtual training environment will significantly reduce the cost and increase the accessibility and safety of advanced manufacturing training.
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El-Mounayri, Hazim A., Eugenia Fernandez, and Tamer Wasfy. "Development of an Online Virtual Reality-Based Advanced Manufacturing Curriculum for Use in Professional Certification." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-69147.
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An innovative online module in advanced manufacturing is developed based on a state-of-the-art virtual reality learning tool. The Advanced Virtual Manufacturing Laboratory (AVML) is a collaborative web-based virtual learning environment for integrated lecture and lab delivery which focuses on advanced machining using Computer Numerically Controlled (CNC) machine tools. The system seamlessly and synergistically integrates multimedia lecture, interactive 3D simulation, and realistic experimentation in a virtual reality environment. The development involves three main elements: a simulator for CNC milling and lathe machines, a virtual-environment display engine, and an intelligent-agent engine. The virtual reality environment provides training in different modes on different operating procedures with the help of an intelligent virtual tutor. The AMVL content was designed to lead to certification. With the help of a NIMS certified practitioner the curriculum is refined to ensure a successful pathway to certification. Support for this pathway to certification is provided by the results of a quasi-experimental randomized study to assess the learning effectiveness of the curriculum content of the AVML. The development of the AVML, its pathway to certification, and the results of the learning effectiveness of the online virtual reality environment are presented in this paper.
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Kawasaki, Kazumasa, and Kazuyoshi Shinma. "Accuracy of Straight Bevel Gear by End Mill Using CNC Milling Machine." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34053.
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Straight bevel gears are usually manufactured with various machines and systems, and the tooth profiles are produced by grinding or machining by means of a tool with many cutting edges. In recent years, the straight bevel gear has been manufactured by an end mill using a CNC milling machine because the use of the auxiliary apparatus, special cutters, and special machine tools are not needed. Using this method, the gear manufacturing with high accuracy is important problem. In this paper, the coordinate measurement of the straight bevel gear manufactured in this method is performed and the gear accuracy is evaluated. The tooth profiles of a straight bevel gear generated by a quasicomplementary crown gear instead of a conventional complementary crown gear is introduced. For this study, first the tooth profiles of the straight bevel gear were modeled using a 3D-CAD system and the gear was manufactured by an end mill using a CNC milling machine based on a CAM process. Afterward, the coordinates of many points on the gear tooth surfaces were measured at random using a coordinate measuring machine. This coordinate measurement provides the information about the factors relation to the gear accuracy such as pressure angle, tooth angle error, root cone angle, and apex to back and so on. Therefore, the values of the above factors were estimated and were compared with the theoretical ones, respectively.
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Li, Yadong, and Peihua Gu. "Machined Feature Estimation and Inspection for Internet-Based Manufacturing System." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/cie-48191.
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With easy access of the Internet, the real-time, web-based collaborations are impacting the current practices of product design and manufacturing. In this research, an Internet-based manufacturing design system has been developed based on the collaborations of several partners located thousands of miles away from each other. This paper introduces a sub-system of this Internet-based manufacturing system for machined feature estimation and inspection using 3D solid models. Using the engineering data of cutting processes received from our collaborator, through the broadband Internet, taking into account of the factors like cutting forces and tool deflections, this sub-system determines the material removal processes by subtracting the tool cutting volume from work-piece raw material. It creates the machined 3D solid geometry models by simulating the machining processes. The estimated geometry is then taken to a simulated inspection process for engineering analysis and CNC machining program verification. To simulate the inspection process on a Coordinate Measuring Machine (CMM), a series of rays is shot to the machined surface to simulate the CMM probe touching for acquiring surface data. The simulated measurement data is then localized to design surface and comparison between them is made to quantify the machining errors. Through the Internet, the geometrical features and inspection result can be visualized and shared by other sub-systems of the whole manufacturing system based on the commercial CAD data formats. The operation of this subsystem and related facilities is local execution.
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Bzymek, Zbigniew M., Rainer Hebert, Dimitriy Kosovay, Thomas Mealy, and Mark Summers. "Machine Parts Modeling and Prototyping by Additive and Subtractive Manufacturing." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65577.
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The Manufacturing Automation course in the Mechanical Engineering program at the University of Connecticut (UConn) was one of the most popular courses in the ME curriculum. The students’ benefits from the course were already described in the companion paper [1]. In this paper the advantages of prototyping and part production through Subtractive Manufacturing (SM) and Additive Manufacturing (AM) are described. The paper discusses parts fabrication done as subtractive and additive manufacturing operations. This was done in the scope of the UConn Engineering i.e. in the ME and MEM programs where Manufacturing Automation and Senior Design courses are taught. Such operations were possible thanks to the equipment available at UConn School of Engineering and thanks to the cooperation with the creator of the Mastercam software - CNC Software Inc and aircraft engines and equipment manufacturer - Pratt & Whitney of East Hartford. The integration of design and manufacturing in the course was done through putting together the operations of conceptual design, geometric design and modeling of the parts designed during the course. The models of parts done by AM were created using 3D printing in ME Laboratory out of acrylonitrile butadiene styrene and different kinds of plastic and in PW/UConn laboratory using laser and electron beam AM machines. To demonstrate further integration of design and machining automation, the students were introduced to complicated problems of surfaces crossing, connections of surfaces and edges of cross sections of the tops and valleys. Thanks to the support and cooperation of the CNC Software, Inc., it was possible to show the students how to cut complicated surfaces on different computer numerically controlled (CNC) machines that ranged from three to nine degrees of freedom specifically designed for accurate and repeatable metal working. In addition, the additive manufacturing (AM) capabilities were introduced in the course thanks to the support of Pratt & Whitney/UConn Additive Manufacturing Laboratory located on the UConn campus. The AM machines are Arcam and laser machines that use electron and laser beams to meld titanium powder. The fabricated parts of high strengths are useful as rapid prototypes or in some cases as substitution parts in an existing mechanical systems. Thanks to the UConn Engineering program and support of the corporations: CNC Software, Inc. and P&W, students were introduced to the spectrum of modern Rapid Prototyping and part sintering operations going through subtractive and additive manufacturing. The process details of the theory, practice of operations, and recommendation for use of the technologies discussed above, as well as possibilities of further applications, are described in this paper. After learning the fundamentals of these processes, students are prepared to design and analyze parts as well as the process required for different machining capabilities. Methods to introduce students to the concepts of using laser and electron beams AM machine as well the prototype machining are described in the paper. Conclusions recommending the teaching methods of product SM and AM machining concepts and lessons learned are also pointed out.
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Wang, Lihui, Robert Gao, and Ihab Ragai. "An Integrated Cyber-Physical System for Cloud Manufacturing." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-4171.
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This paper presents an integrated cyber-physical system for remote accessibility and controllability of factory equipment, e.g. CNC machines and robots. It is enabled by combining 3D models, sensor data and camera images in real-time. The aim of this research is to significantly reduce network traffic for much improved accessibility and controllability of any cyber-physical systems over the Internet. The ultimate goal is to build cloud-based services of monitoring, process planning, machining and assembly in decentralised environment. This paper covers the basis of the approach, system architecture and implementation, and a case study of remote control of a robotic assembly cell. Compared with camera-based systems, our approach consumes less than 1% of its network bandwidth, feasible and practical as a future cloud-based solution.
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Song, Xuan, and Yong Chen. "Joint Design for 3-D Printing Non-Assembly Mechanisms." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71528.
Full textAbstract:
The layer-based additive manufacturing (AM) processes can directly fabricate sub-systems with multiple components during the building process. Novel applications in robotics and many others have been demonstrated by removing the need of component assembly. However, the AM processes also have inferior accuracy compared to the Computer Numerical Control (CNC) machining process. Hence the joint clearance that can be achieved in a 3D-printed mechanism is large. This would significantly limit the use of AM in directly building movable sub-systems without further assembly operations after the building process. To reduce the joint clearance, we present a novel joint design by considering the fabrication limitation of AM processes. A novel marker structure is developed for various types of joints including cylindrical pin joints. The relation of the marker design and the rotation performance of the 3D-printed joint is modeled. Test cases based on the Stereolithography Apparatus (SLA) process have been performed to verify the effectiveness of the developed joint design. Compared to the traditional pin joint design, the new design can achieve a smaller clearance during rotation while still be able to be fabricated by the SLA process. Consequently its rotation performance can be improved.
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Jywe, Wenyuh, Y. R. Jeng, Yitsung Li, et al. "A 3D error measurement system for CNC machining tools." In International Symposium on Instrumentation Science and Technology, edited by Jiubin Tan and Xianfang Wen. SPIE, 2008. http://dx.doi.org/10.1117/12.807694.
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Moetakef Imani, Behnam, and Amirmohammad Ghandehariun. "Look-Ahead NURBS-PH Interpolation for High Speed CNC Machining." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24426.
Full textAbstract:
Various methods for parametric interpolation of NURBS curves have been proposed in the past. However, the errors caused by the approximate nature of the NURBS interpolator were rarely taken into account. This paper proposes an integrated look-ahead algorithm for parametric interpolation along NURBS curves. The algorithm interpolates the sharp corners on the curve with the Pythagorean-hodograph (PH) interpolation. This will minimize the geometric and interpolator approximation errors simultaneously. The algorithm consists of four different modules: a sharp corner detection module, a PH construction module, a jerk-limited module, and a dynamics module. Simulations are performed to show correctness of the proposed algorithm. Experiments on an X-Y table confirm that the developed method improves tracking and contour accuracies significantly when compared to previously proposed adaptive-feedrate and curvature-feedrate algorithms.