Relevant bibliographies by topics / CNC machining centre

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'CNC machining centre'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "CNC machining centre"

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Cizikova, Andrea, Katarina Monkova, Peter Monka, and Marek Urban. "ANALYSIS OF FREQUENCY CHARACTERISTICS AT SPINDLE CNC MACHINING CENTRE." MM Science Journal 2016, no. 06 (2016): 1515–18. http://dx.doi.org/10.17973/mmsj.2016_12_201627.

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Ganea, Macedon, Constantin Bungau, and Rares Pancu. "Modern Flexible Manufacturing Cell (FMC), Build by Retrofitting at Oradea University." Applied Mechanics and Materials 282 (January 2013): 45–50. http://dx.doi.org/10.4028/www.scientific.net/amm.282.45.

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The Faculty IMT (Technological and Managing Engineering into mechanic domain) from Oradea University decided to develop by retrofitting activity one old second hand Horizontal Machining Centre from the Laboratory, in order to obtain the newest level as the most economic investment, able to answer at the educational conditions, according to the academic curriculum for bachelor, master and even PhD levels. The retrofitting activity was based on Fanuc components (CNC, AC drives & servomotors, PLC, measuring system, etc) on the basic machine, but also the machine CNC extension to “five axes machining concept”, having now more supplementary two CNC axes. On the other hand, the machine extension from machining centre to flexible cell, introduced new components as: load station, internal transport system by conveyor, Regal lager, two robots (able to assure the flow of resources).
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Bungău, Constantin, Rareş Pancu, and Traian Buidoş. "Analysis of the Linear Positioning Accuracy on Z Axis at the Horizontal Machining Centre TMA-AL-550." Advanced Materials Research 837 (November 2013): 179–84. http://dx.doi.org/10.4028/www.scientific.net/amr.837.179.

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This paper presents a case study regarding use the laser XL 80 to check the linearity movement of the Z-axis to horizontal machining center, TMA-AL 550. This machining center has been upgraded to the possibility of processing to 3 CNC linear axes and 2 CNC rotary axes (up to 5 CNC simultaneous axes) and also 1 PLC axis (the index table), as well the including of the machine into to the flexible manufacturing cell. This work paper presents the linearity accuracy at machining centre on the Z axis and shows the operating correction parameters by software and the necessity of backlash adjustment between nut and ball screw, by using a performing linear laser for machine tools and research systems laboratory, that was acquired by the project RTT-5 Rotary-Tilting Tables for 5-axis Machining Center, where the authors participated. Compared with conventional methods of checking of table linearity deviations at the machining centers (checking with spirit leveling device, wire collimator, wire auto-collimator and yardstick ruler), the method by laser of unconventional determining brings the following advantages: linear resolution of 0.001 μm, method assisted by computer, in order to obtain the positioning accuracy ± 5 μm the repeatability of 5 μm/m. The measurements fall within the ISO 230-2, ASME B5-52, VDI 3441-DGQ, JIS and GB international standards, and permitting also the memorization of the measured data and the obtaining of the tabulated results, or in graphical form too, using XL 80 soft Laser, by forwarding the information to the computer.
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Ivan, Andrei Mario, Florin Adrian Nicolescu, Georgia Cezara Avram, and Adrian Theodor Mantea. "Off-Line Programming and Functioning Simulation of Robotic Flexible Manufacturing Cell for Part's Turning." Applied Mechanics and Materials 760 (May 2015): 213–18. http://dx.doi.org/10.4028/www.scientific.net/amm.760.213.

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This paper presents the works performed by the authors in the field of robotic flexible manufacturing cell offline programming and simulation. The study includes a manufacturing cell structure which includes a part transport system, a CNC lathe / turning centre and an articulated arm type industrial robot. The robot performs the task of loading / unloading the CNC lathe / manufacturing centre and manipulating the parts inside the cell, while the machining operations are performed by the CNC manufacturing centre. After briefly presenting the layout of the cell, the paper focuses on describing the methods used for offline programming and simulation of the tasks performed by the industrial robot. The software package used is ABB RobotStudio. The results of the research work are a process simulation and validation for CNC lathe / machining centre loading / unloading operation and part manipulation performed by the industrial robot and assisted task programming for this application using ABB RobotStudio software. The assisted offline programming and simulation general methods used, as well as the procedures for each stage of the applications are described, in order to illustrate the specific operation for each cell and offline programming aspects.
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Kminiak, Richard, Kazimierz A. Orlowski, Ladislav Dzurenda, Daniel Chuchala, and Adrián Banski. "Effect of Thermal Treatment of Birch Wood by Saturated Water Vapor on Granulometric Composition of Chips from Sawing and Milling Processes from the Point of View of Its Processing to Composites." Applied Sciences 10, no. 21 (2020): 7545. http://dx.doi.org/10.3390/app10217545.

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The goal of this work is to investigate the impact of thermal modification of birch wood with saturated steam on the particle size distribution of the sawing and milling process. Birch wood (Betula pendula Roth) is an excellent source to produce plywood boards. Wastes from mechanical processing of birch wood are suitable to produce composite materials. Granulometric analyses of chips from sawing processes on the PRW 15M frame saw, as well as on the 5-axis CNC machining centre SCM TECH Z5 and the 5-axis CNC machining centre AX320 Pinnacle, proved that more than 95% of chips are chips of coarse and medium coarse chip fractions with dimensions above 0.125 mm. Depending on the shape, coarse and medium-thick chips belong to the group of fiber chips, the length of which is several times greater than the width and thickness. Fine fractions with dimensions smaller than 125 μm are isometric chips that are approximately the same size in all three dimensions. Thoracic dust fractions below 30 μm were not measured. The performed analyses showed that the heat treatment of birch wood with saturated steam did not affect the grain size of chips formed in sawing and milling processes on CNC machining centre and can be used as a raw material for the production of composite materials. Fabric filters are suitable for separating chips extracted from frame saws, PRW-15M or machining centre. Environmental criteria for the separation of chips from transport air in textile filters are met by filters with a fabric classified in class G4.
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McKnight, W. W., G. R. Dickson, and D. Crossen. "Utilisation of CNC machining centre as a three-dimensional copy mill." Journal of Materials Processing Technology 43, no. 1 (1994): 61–64. http://dx.doi.org/10.1016/0924-0136(94)90162-7.

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Ganesan, H., and G. Mohankumar. "Optimization of Machining Techniques in CNC Turning Centre Using Genetic Algorithm." Arabian Journal for Science and Engineering 38, no. 6 (2013): 1529–38. http://dx.doi.org/10.1007/s13369-013-0539-8.

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Ford, DG, MHN Widiyarto, A. Myers, AP Longstaff, and S. Fletcher. "Structural analysis and characterisation technique applied to a CNC vertical machining centre." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 13 (2014): 2357–71. http://dx.doi.org/10.1177/0954406213517496.

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There is a requirement for improved 3D surface characterisation and reduced tool wear, when modern computer numerical-controlled (CNC) machine tools are operating at high cutting velocities, spindle speeds and feed-rates. This research project investigates vibration-induced errors on a CNC vertical machining centre under dynamic conditions. A model of the machine structural dynamics is constructed using the Finite Element Method (FEM) for the comprehensive analytical investigation of the machine vibration behaviour. The analytical model is then validated against the measured results obtained from an experimental modal analysis (EMA) investigation. A correlation analysis of the simulated and experimental modal analysis results is undertaken in order to improve the accuracy of the model and minimise modelling practice errors. The resulting optimised model will need further sensitivity analysis utilising parametric structural analysis and characterisation techniques in order to identify a potential for vibration reduction using passive methods.
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van Ligten, R. F., and V. C. Venkatesh. "Diamond Grinding of Aspheric Surfaces on a CNC 4-Axis Machining Centre." CIRP Annals 34, no. 1 (1985): 295–98. http://dx.doi.org/10.1016/s0007-8506(07)61776-4.

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Vichare, P., A. Nassehi, and S. Newman. "A unified manufacturing resource model for representation of computerized numerically controlled machine tools." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 223, no. 5 (2009): 463–83. http://dx.doi.org/10.1243/09544054jem1363.

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The capability of any manufacturing system primarily depends on its available machine tools. Thus machine tool representation is a vital part of modelling any manufacturing system. With the rapid advances in computerized numerically controlled (CNC) machines, machine tool representation has become a more challenging task than ever before. Today's CNC machine tools are more than just automated manufacturing machines, as they can be considered multi-purpose, multi-tasking, and hybrid machining centres. This paper presents a versatile methodology for representing such state-of-the-art CNC machining system resources. A machine tool model is a conceptual representation of the real machine tool and provides a logical framework for representing its functionality in the manufacturing system. There are several commercial modelling tools available in the market for modelling machine tools. However, there is no common methodology among them to represent the wide diversity of machine tool configurations. These modelling tools are either machine vendor specific or limited in their scope to represent machine tool capability. In addition, the current information models of STEP-NC, namely ISO 14649, can only describe machining operations, technologies, cutting tools, and product geometries. However, they do not support the representation of machine tools. The proposed unified manufacturing resource model (UMRM) has a data model which can fill this gap by providing machine specific data in the form of an EXPRESS schema and act as a complementary part to the STEP-NC standard to represent various machine tools in a standardized form. UMRM is flexible enough to represent any type of CNC machining centre. This machine tool representation can be utilized to represent machine tool functionality and consequential process capabilities for allocating resources for process planning and machining.
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Dissertations / Theses on the topic "CNC machining centre"

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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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Randeree, Kasim. "Development of an integrated laser - based tool inspection system for a CNC machining centre." Thesis, University of Hull, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301631.

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Martiňák, Marek. "Technologické a ekonomické aspekty aplikace CNC obráběcích center." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229002.

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The Aim of this diploma thesis has been to analyse the application of the CNC machining centers for the production especially with concentration on accuracy and economical aspect of the machining process. After the study of the literature and making familiar with the production on the CNC machine tool of the type Deco Sigma 20 ( manufacturer, the firm Tornos ) it has been evaluated the technology of the design of the chosen part, its machining accuracy and found out the economical parameters of this machinery for this chosen part as a necessary supposition for securing the correct production in accordance with the requirements of the client. The described process of the technological and economical preparation for the production as well as its checking can be used in future for the proposals of the further similar parts.
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Juráň, Jaromír. "Optimalizace technologie součásti "nosná deska" ve firmě PROMAT Vsetín." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228355.

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Valorization and analysis of machining technology for the production of aluminium part and consecutively project optimization part production. New advanced cutting tools selection and application of new technologies. The adjustment and simplification of the existing NC program for given CNC machining centre and its final debugging. In the final part, there is an economical and technical evaluation of firm benefits and recommendations into production.
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Konečný, Jan. "Racionalizace výroby skříní." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231984.

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The thesis deals with the reorganization of production injection pump casing, when the existing production solution, using cutting lines, did not meet the requirements for flexible manufacturing. There are handled points leading to the replacement of the line of machining centres after a brief introduction of the company. Among the main points of thesis are the design of operations, choice of tools and cutting conditions, proposal clamping device and technology, techno-economic evaluation of the newly introduced production.
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Nohál, Libor. "Připojení vyvrtávacích hlav s CNC řízenou U-osou na horizontálních centrech Tajmac-ZPS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229319.

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The subject of this thesis is a suggestion on mechanism for automatic interfacing of boring and facing heads with CNC U-axis on horizontal machining centres made in Tajmac-ZPS company. The thesis is terminated in modal analysis which is done in the point of view of the constructed boring head´s behaviour.
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Konečný, Petr. "Racionalizace technologie výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231504.

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This thesis deals with the rationalization of production technology of selected component. The first part contains a brief introduction of the company NTS Prometal Machining s.r.o. and brief description of the product. The following section is an analysis of existing manufacturing technology. The practical part is focusing on the proposal of rationalization versions of the production process. After evaluation of all possible options of rationalization there has been developed a new technological process with a respect to time and cost savings. Finally there was carried out economical evaluation and recommendation for further production of this component.
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Sádlo, Dominik. "Racionalizace obrábění skříní převodovek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417111.

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Content of the thesis is the proposal of new technology using machining centres, including five controlled axis. Benefit of implementation the new nechnology is investigated at machining example, which is the gear housing of a single stage gearbox, manufactured in the company. In the first part of the thesis, the general properties of gearboxes and their housings are analyzed, as well as the procedure of the current proces of the machining representative. In practical part of the thesis is proposed necessary tool equipment and jig equipment, needed for machining of the part. After that are analyzed and filled in time studies, provided by manufacturers of machining centres. On the bases of these studies, were calculated operating times and operating costs per one piece of the housing. In the part of technical and economical evaluation is calculated the return of initial investment, including costs for byuing new machining cente and cutting tools equipment. Finaly are evaluated the overal benefits of the new technology, given the needs of the company.
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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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Šedo, Václav. "Vliv nákupu brusného CNC centra na produktivitu výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-379016.

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This master’s thesis familiarizes reader with technology of machine grinding – it’s history, principle, general use, related tools, achievable parameters and kinematics of grinding process. The core of work is analysis of jig-grinder Hauser H45-400, it’s kinematics, machine technical data, options and accessories. Work concludes with technical and economical assessment of machining of several parts with this machine and compares results to alternative options of machining.
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Books on the topic "CNC machining centre"

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Amin, Erman. Penelitian dan pengembangan mesin perkakas CNC: Low cost high quality machining center : laporan riset unggulan kemitraan. Lab. Dinamika PAU, Ilmu Rekayasa, ITB, 1998.

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National Register of Foreign Collaborations (India) and India. Dept. of Scientific & Industrial Research., eds. Technology in Indian CNC lathes and machining centres industry: A status report prepared under the National Register of Foreign Collaborations. Govt. of India, Dept. of Scientific & Industrial Research, Ministry of Science & Technology, 1990.

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Book chapters on the topic "CNC machining centre"

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Gawali, Sagar Kailas, Narendra Kumar, and Prashant Kumar Jain. "Additive Manufacturing of Large Size Parts Through Retrofitment of Three-Axes CNC Machining Centre." In Lecture Notes on Multidisciplinary Industrial Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73495-4_29.

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Joshi, Vratraj, Bhavin Desai, Shalin Marathe, Keyur Desai, and Harit Raval. "Development of Macro Program for Improving Machining Characteristics of Logarithmic Spiral on CNC Machining Center." In Advances in Manufacturing Systems. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4466-2_2.

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Jain, Jaki, Narendra Kumar, and Prashant K. Jain. "A Novel Approach of Generating Toolpath for Performing Additive Manufacturing on CNC Machining Center." In Lecture Notes on Multidisciplinary Industrial Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4550-4_9.

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Calvanese, Maria Luisa, Paolo Albertelli, Andrea Matta, and Marco Taisch. "Analysis of Energy Consumption in CNC Machining Centers and Determination of Optimal Cutting Conditions." In Re-engineering Manufacturing for Sustainability. Springer Singapore, 2013. http://dx.doi.org/10.1007/978-981-4451-48-2_37.

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Zhang, G. B., J. H. Pang, G. H. Chen, X. L. Ren, and Y. Ran. "An Evaluation Method Based on Multiple Quality Characteristics for CNC Machining Center using Fuzzy Matter Element." In Proceedings of the 36th International MATADOR Conference. Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-432-6_36.

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Svoboda, Ondrej. "Comparative Study of the Volumetric Positioning Accuracy of CNC Machining Centres Using the Latest Laser Measurement Technology." In Proceedings of the 34th International MATADOR Conference. Springer London, 2004. http://dx.doi.org/10.1007/978-1-4471-0647-0_48.

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Calvino Fernandez-Trujillo, Antonio, Asuncion Rivero, Miguel Alvarez, Francisco Javier Puerta, Jorge Salguero, and Mariano Marcos. "Implementing Incremental Sheet Metal Forming on a CNC Machining Centre." In DAAAM Proceedings. DAAAM International Vienna, 2016. http://dx.doi.org/10.2507/26th.daaam.proceedings.129.

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Zaloga, Viliam, Vitalii Ivanov, Ivan Pavlenko, and Ivan Dehtiarov. "Technological Assurance of Manufacturing Effectiveness on CNC Machining Centers." In Advances in Business Information Systems and Analytics. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2725-2.ch016.

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The chapter is devoted to the solving of the problem of increasing the efficiency of lever-type parts machining due to the introduction of flexible fixtures ensuring multi-axis machining. The relationship between the design and technological parameters of the parts were discovered, which is the fundamentals for the analysis of parts and the search for the fixture layout for the given production conditions. An innovative approach to the design of technological processes for lever-type parts machining is proposed, which is based on the principle of intensification of machining processes, design and technological features of the parts, functional and technological capabilities of modern metal-cutting machine tools. A mathematical model of machining accuracy of parts depending on the level of fixture flexibility is obtained. It is analytically and experimentally proved the feasibility of using flexible fixtures for multi-axis machining of lever-type parts in multiproduct manufacturing.
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Xu, Xun. "CNC Machine Tools." In Integrating Advanced Computer-Aided Design, Manufacturing, and Numerical Control. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-714-0.ch008.

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The introduction of CNC machines has radically changed the manufacturing industry. Curves are as easy to cut as straight lines, complex 3-D structures are relatively easy to produce, and the number of machining steps that required human action has dramatically reduced. With the increased automation of manufacturing processes with CNC machining, considerable improvements in consistency and quality can be achieved. CNC automation reduced the frequency of errors and provided CNC operators with time to perform additional tasks. CNC automation also allows for more flexibility in the way parts are held in the manufacturing process and the time required to change the machine to produce different components. In a production environment, a series of CNC machines may be combined into one station, commonly called a “cell”, to progressively machine a part requiring several operations. CNC controller is the “brain” of a CNC machine, whereas the physical configuration of the machine tool is the “skeleton”. A thorough understanding of the physical configuration of a machine tool is always a priority for a CNC programmer as well as the CNC machine tool manufacturers. This chapter starts with a historical perspective of CNC machine tools. Two typical types of CNC machine tools (i.e. vertical and horizontal machining centres) are first discussed. Tooling systems for a CNC machine tool are integral part of a CNC system and are therefore elaborated. Also discussed are the four principal elements of a CNC machine tool. They are machine base, machine spindle, spindle drive, and slide drive. What letter should be assigned to a linear or rotary axis and what if a machine tool has two sets of linear axes? These questions are answered later in the chapter. In order for readers to better comprehend the axis and motion designations, a number of machine tool schematics are given.
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Anjanappa, M., D. K. Anand, J. A. Kirk, E. Zivi, and M. Woytowitz. "RETROFITTING A CNC MACHINING CENTER WITH A MAGNETIC SPINDLE FOR TOOL PATH ERROR CONTROL." In Information Control Problems in Manufacturing Technology 1989. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-08-037023-1.50090-x.

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Conference papers on the topic "CNC machining centre"

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Saravanan, R., and V. Janakiraman. "Study on Reduction of Machining Time in CNC Turning Centre by Genetic Algorithm." In International Conference on Computational Intelligence and Multimedia Applications (ICCIMA 2007). IEEE, 2007. http://dx.doi.org/10.1109/iccima.2007.92.

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Mohammadi, Yaser, and Keivan Ahmadi. "Structural Nonlinearity of Robotic Machining Systems." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8452.

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Abstract Excessive and unstable vibrations that are caused by the machining forces are among the most critical problems that limit the use of industrial robots instead of CNC machine tools. Reduction and control of robot’s vibrations during machining require accurate models of the robot’s vibration response to the dynamic forces exerted at the Tool Centre Point (TCP) where the cutting tool interacts with the workpiece material. The existing models of vibrations in robotic machining have been formed by assuming the linearity of the dynamic response at the TCP. In this paper, the accuracy of this assumption is investigated experimentally, and the results show that the dynamic response at the TCP is strongly nonlinear. An experimental procedure is presented to identify the nonlinearities by employing the first-order Frequency Response Functions (FRFs) measured using various input force excitations. Nonlinear Complex Mode Analysis is then used to extract the modal parameters of the system when its dynamics is linearized around a harmonic response with a constant amplitude. The extracted modal parameters strongly depend on the amplitude of the applied force and the resulting vibrations. This study highlights the need for considering the nonlinearities of the structural dynamics of industrial robots in modelling machining vibrations.
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Tani, Giovanni, Raffaele Bedini, Alessandro Fortunato, and Claudio Mantega. "Dynamic Hybrid Modeling of the Vertical Z Axis in an HSM Machining Center: Towards Virtual Machining." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84810.

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The paper describes the dynamical real-time simulation of the Z axis of a five axis machining center for high speed milling. The axis consists of a mechanical structure: machine head and electro-mandrel, a CNC Control System provided with feed drives and a Pneumatic System to compensate the weight of the entire vertical machine head. These three sub-systems have been studied and modeled by means of: • FEM modeling of the mechanical structure; • an equation set to represent the main functions of the CNC; • an equation set to represent the functioning of the Pneumatic System. These different modeling sub-systems have been integrated to obtain the entire actual dynamical behavior of the Z axis. A particular analysis was developed to represent the friction phenomena by a specific analytical model. Experimental activity was developed to test and validate the different modeling sub-systems, and other experimental tests were performed on the machining center to compare simulation outputs with experimental responses.
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Venkatesh, S., D. Odendahl, X. Xu, J. Michaloski, F. Proctor, and T. Kramer. "Validating Portability of STEP-NC Tool Center Programming." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84870.

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A joint effort between Boeing and the National Institute of Standards and Technology (NIST) was undertaken for validating and evaluating STEP AP238 (STEP-NC) Conformance Class 1 (CC1) for 5-axis machining. STEP-NC is a new manufacturing standard to support “design anywhere, build anywhere, and support anywhere.” The joint Boeing/NIST validation intended to prove that five-Axis AP-238 programs with tool center programming (TCP), as opposed to that of axis movement data, are portable. Current RS274 “G code” part programs that use axis movement data are bound to a single CNC, are ineffective on different machine tools, and cannot be used for the exchange of information between process planning, work preparation, tooling, and other production processes. All of these obstacles add considerable time and cost to the production life cycle of a machine part. This paper discusses the joint Boeing/NIST STEP-NC TCP validation work. The major findings were that STEP-NC TCP geometrical data is portable across different 5-axis configuration CNCs. This came with a caveat, that although CNC programs can be “data-neutral”, they are not necessarily “process-neutral”.
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Ko, Roy Chih-Lung, and Wang-Lin Liu. "Design and Implementation of a High Bandwidth Servo Controller for Micro-Machining Center." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31066.

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To achieve the required performance of a Micro Machining Center, the control system must issue position commands with nanometer resolution, while holding the axis position with oscillations down to sub-micron level. The requirements call for a highly flexible CNC platform with unconventionally high-bandwidth servo controller. In this paper, we present a system-wide design based on an open CNC architecture with integrated digital servo drives. The proposed design incorporates customization of the digital protocol between CNC and drives, ultra-fine interpolation of the encoder signal, and novel approaches to increase the servo-loop bandwidth. A three-axis Micro Machining Center was successfully built with the proposed design, which was then proven to meet the stringent requirements with extensive dry-run and cutting experiments.
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Ay, Muzaffer, Sebastian Stemmler, Dirk Abel, Max Schwenzer, and Fritz Klocke. "System Identification of a CNC Machining Center with Support Vector Machines." In 2018 26th Mediterranean Conference on Control and Automation (MED). IEEE, 2018. http://dx.doi.org/10.1109/med.2018.8442437.

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Grochała, Daniel, Sara Dudzińska, Emilia Bachtiak-Radka, and Rafał Gubała. "Micro-hydraulic burnishing tools for integrated machining on CNC milling center." In 2ND INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE). Author(s), 2018. http://dx.doi.org/10.1063/1.5066480.

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Konobrytskyi, Dmytro, Thomas Kurfess, Joshua Tarbutton, and Tommy Tucker. "GPGPU Accelerated 3-Axis CNC Machining Simulation." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1096.

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GPUs (Graphics Processing Units), traditionally used for 3D graphics calculations, have recently got an ability to perform general purpose calculations with a GPGPU (General Purpose GPU) technology. Moreover, GPUs can be much faster than CPUs (Central Processing Units) by performing hundreds or even thousands commands concurrently. This parallel processing allows the GPU achieving the extremely high performance but also requires using only highly parallel algorithms which can provide enough commands on each clock cycle. This work formulates a methodology for selection of a right geometry representation and a data structure suitable for parallel processing on GPU. Then the methodology is used for designing the 3-axis CNC milling simulation algorithm accelerated with the GPGPU technology. The developed algorithm is validated by performing an experimental machining simulation and evaluation of the performance results. The experimental simulation shows an importance of an optimization process and usage of algorithms that provide enough work to GPU. The used test configuration also demonstrates almost an order of magnitude difference between CPU and GPU performance results.
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Schmitz, Tony L., John C. Ziegert, Raul Zapata, and J. Suzanne Canning. "Part Accuracy in High-Speed Machining: Preliminary Results." In ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21100.

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This paper provides preliminary results from a study of the relative contributions of various error sources to overall dimensional errors in parts produced by milling operations. The error sources studied include machine geometry errors, thermal errors, controller tracking errors, and errors due to cutting forces. These error sources are modeled and measured on a modern high-speed machining CNC machining center. It is found that dynamic cutting force errors can be a significant contributor to part dimensional errors in high-speed milling operations.
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Li, Yan-Feng, Jian Sun, Haiqing Li, Hong-Zhong Huang, and Yu Liu. "Fuzzy Dynamic Fault Tree Analysis of Hydraulic System of CNC Machining Center." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47583.

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Fault tree analysis (FTA), as an effective reliability assessment tool, is a widely used in analyzing the risk and reliability of large scale and complex engineering systems. Dynamic fault tree analysis (DFTA) extends the static fault tree by defining additional gates to model the complicated interactions, and in most case, Markov models can be used to solve dynamic gates. In many real systems, it is quite difficult to evaluate the probability of failure events preciously due to many uncertainty factors. To account for the uncertainty resulting from the lack of sufficient data or the subjective adjustments from experts, a fuzzy dynamic fault tree model is proposed to assess the system reliability when acquiring precious probability of failure event is impossible. With the aim of obtaining the membership function of the fuzzy probability of the top event, the extension principle is employed. The proposed method and algorithm are demonstrated by a case study of the hydraulic system of a specific CNC machining center.
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Reports on the topic "CNC machining centre"

1

Jaggars, S. R. CNC electrical discharge machining centers. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5160064.

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