Academic literature on the topic 'CNC production machine'
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Journal articles on the topic "CNC production machine"
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Fecko, B., and T. Vince. "REALIZATION OF AUTOMATED PRODUCTION ON CNC MILLING MACHINE." Electromechanical and energy saving systems 2, no. 46 (2019): 57–64. http://dx.doi.org/10.30929/2072-2052.2019.2.46.57-64.
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Muhamad Bustaman, Nurul Wahieda, and Mohd Salman Abu Mansor. "A Study on CAD/CAM Application in CNC Milling Using Industrial Clay." Applied Mechanics and Materials 761 (May 2015): 32–36. http://dx.doi.org/10.4028/www.scientific.net/amm.761.32.
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Throughout the production process, improper planning and exploitation of the CAD/CAM system leads to the low level utilization of the CNC milling machine. In product design, tangible prototype is fabricated using CAD/CAM techniques in the design phase to analyse and modify the product before actual production. In this research, industrial clay is used as the prototype material. The objectives of the study are to investigate the machining parameters of industrial clay using the CNC milling machine and to apply the CAD/CAM system in producing a clay sample part via the CNC milling machine. Using uncomplicated and low cost setup for the fabrication method, an industrial clay sample part is prepared in the CAD/CAM system and shaped using the CNC milling machine. The difference between the simulated and the actual machining time of the machined part is analysed.
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Aktas, Ahmet, Serhat Aydin, and Mehmet Kabak. "CNC router selection under dynamic fuzzy environment." Journal of Intelligent & Fuzzy Systems 39, no. 5 (2020): 6259–69. http://dx.doi.org/10.3233/jifs-189094.
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To cut several types of hard materials in manufacturing, Computer Numeric Control (CNC) router machines are commonly used. The tasks to be done by different machines can be performed by a single CNC router machine. Production of parts with better quality is possible at lower costs by production with CNC router machines, and these machines improve the productivity of manufacturing system. For these reasons, determination of the appropriate CNC router machine for manufacturing systems is a crucial decision. Different factors related to properties of machines are effective on the decision. Therefore, decision makers must include different effective aspects into decision process. Under this consideration, an analytic selection procedure for CNC router machines by taking uncertain expressions of experts on the selection criteria and variable values occur over time is proposed in this study. In order to handle the modelling difficulty of uncertainty of the statements and the value changes by time, dynamic intuitionistic multi attribute decision making is used to select the best CNC router. Applicability of the proposed selection procedure is demonstrated on an application, and a comparative analysis with dynamic neutrosophic multi attribute decision making is presented.
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Lei, Zhang. "Study on Design Proposal of Computerized Numerical Control Machine Networking." Advanced Materials Research 748 (August 2013): 699–703. http://dx.doi.org/10.4028/www.scientific.net/amr.748.699.
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At present, the majority of enterprise technology management and production management have entered the network era. The demand for people who are occupied in 3D product design, numerical control advanced engineering technology is gradually increased. In order to speed up the production development of factories, we need to greatly improve the productivity of CNC machine. Therefore, CNC networking and management is imperative. This article describes background of the implementation of the numerical network management as well as its necessity. According to the industry characteristics of design and manufacturing and production management, this paper analyzes proposals on the network management system of CNC and describes the main functions of the machine network system and the results after the implementation. The network system of CNC is to improve the productivity of CNC machine, and give references to the application of CNC machine networking in large machine manufacturing industry.
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Zhu, Cheng Jun, Qi Shu Qin, and Peng Er Bao. "The Study of the Multi-Body System Theory on Basis of CNC Milling Machine Error." Advanced Materials Research 383-390 (November 2011): 1304–9. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1304.
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CNC machine, especially CNC milling machine, is the main production equipment in the industries of machinery, iron and steel, automobile manufacturing and so on. However, the errors are the main constraints to the processing quality and the precision measurement of CNC machine. Based on the multi-body system theory, the article models the error of Siemens CNC milling machine. In terms of the analysis of the error model, it is argued that the processing precision of CNC milling machine can be improved through controlling and compensating the error in the process of installation and manufacturing.
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Zhu, Cheng Jun, Qi Shu Qin, and Peng Er Bao. "The Study of the Multi-Body System Theory on Basis of CNC Milling Machine Error." Advanced Materials Research 433-440 (January 2012): 444–49. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.444.
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CNC machine, especially CNC milling machine, is the main production equipment in the industries of machinery, iron and steel, automobile manufacturing and so on. However, the errors are the main constraints to the processing quality and the precision measurement of CNC machine. Based on the multi-body system theory, the article models the error of Siemens CNC milling machine. In terms of the analysis of the error model, it is argued that the processing precision of CNC milling machine can be improved through controlling and compensating the error in the process of installation and manufacturing.
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Li, Ai Qin, and Kun Tang. "A New Intelligent CNC Compound Machine." Applied Mechanics and Materials 644-650 (September 2014): 731–34. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.731.
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The new intelligent computer number control (CNC) compound machine is introduced.The machining can load and unload automatically by industrial robot,and can synchronously carry on three processes for drilling,chamfering and tapping with high-composite and high-efficiency .Thus this machining can achieve unmanned intelligent operation in production .
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Kráľ, Ján, and Ján Kráľ. "Verification of Manufacturing Accuracy of Mathematically Defined Shaped Surfaces on 3D CNC Milling Machine." Key Engineering Materials 581 (October 2013): 423–30. http://dx.doi.org/10.4028/www.scientific.net/kem.581.423.
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Verification of programming of various control systems and production of mathematically defined shaped surfaces on 3D CNC milling machine is a challenging technological process. Appropriate design and optimization of tool path is essential for the production of high-quality surfaces with the required accuracy and roughness. This paper presents the design of shaped surfaces in various programming means in order to evaluate both the accuracy of the shape manufactured by the production machine and also by program created shapes for control systems of 3D milling machines. Based on the analysis of mathematically defined shaped surfaces to evaluate both accuracy of shape of 3D milling machine and also applied programs for the programming of the selected control system the shaped surface "Interface" was chosen. The advantage of mathematically described surface is a better way to evaluate the accuracy compare to surface modeled e.g. by Bezier ́s curves. Mathematically described surfaces enable us to optimize their shapes by available mathematical functions. Typical example the derivatives are, which make it possible to search extremes. Verification of the shaped surfaces accuracy according to created control programs was solved using the 3D Carl-Zeiss coordinate system and also HOLOS software. Verified programs for the NC machine programming were in CATIA V5, Pro/Engineer and EqCAM. The result is an optimally designed original EqCAM program for 3D CNC milling machine programming, which generates optimal NC codes and bypasses various built-in interpolations, and by precise control at every step it is possible to achieve maximum accuracy and quality of machined surface for each 3D CNC milling machine.
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Peng, Er Bao, Yu Hua Zhang, and Hong Ying Wang. "Study on Kinematic Features of CNC Machine Based on Multi-Body System Theory with Error Modeling." Advanced Materials Research 676 (March 2013): 149–52. http://dx.doi.org/10.4028/www.scientific.net/amr.676.149.
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CNC machine, especially CNC milling machine, is the main production equipment in the industries of mechanics, iron and steel, automobile manufacturing and so on. However, the errors are the main constraints to the processing quality and the precision measurement of CNC machine. Based on the multi-body system theory, the article models the error of Siemens CNC milling machine and kinematic. In terms of the analysis of the error model, it is argued that the processing precision of CNC milling machine can be improved through controlling and compensating the error in the process of installation and manufacturing.
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Ungureanu, Ana Lacramioara, Gheorghe Stan, and Paul Alin Butunoi. "Overall Effectiveness Improvement for CNC Machine Tools." Applied Mechanics and Materials 809-810 (November 2015): 1498–503. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.1498.
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Overall effectiveness (OE) for CNC machine tools is a metric sistem for assessing the production obtained performance. To optimize OE is necessary to determine the performance indicators [1,2], identifying and correcting the non-values [3,4,5]. In this paper we propose new methods for CNC machine tools OE improvement, through IFA (Information Focus Action) analysis of production losses, during milling machine Wissner Wi3020 type. Comparison of real OE diagram with the theoretical one, provides information about the real losses associated with sub-processes. Also, root-cause analysis of performance losses, leading to the generation of new ways to improve the CNC machine tools OE.
Dissertations / Theses on the topic "CNC production machine"
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Loudát, Pavel. "Návrh manipulačního systému s roboty pro CNC obráběcí linku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228138.
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The aim of this thesis was to design the robotic handling system of CNC production line based on requirements of Valeo Compressor Europe in Humpolec. The theoretical part of this thesis includes the profile of the company, analysis of handling system and automated workstations used in production system. The practical part of this thesis includes analysis of the current state and design of handling system for CNC production line. There is recovery of investment analysis for the designed line and summary at the last part of diploma project.
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Vaverka, Jiří. "Obrábění součástí v malosériové výrobě s aplikací CNC strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318693.
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The topic of this thesis is the choice of optimal production technology for the chosen representative. The aim of this work is to compare production on conventional machine and on NC and CNC machines. Both variants are evaluated in terms of efficiency, speed and economy of production. Outputs are based on recommended production procedures based on the number of pieces produced in the order.
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Paděra, Radek. "Zefektivnění výroby držáku jehelní tyče." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241146.
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This diploma thesis deals with the manufacturing of the needle bar holder for the company MINERVA BOSKOVICE, a.s. to propose the efficient production. The first part of diploma thesis is dedicated to the analysis of the technologies used for manufacturing the component. The second part of the thesis is focused on the analysis of the component and its current production. The third part suggests a design for a manufacturing process innovation containing the description of a new machine used for manufacturing, tool selection, technological process and mechanical calculations. The last part evaluates the current and a newly designed production and makes a comparison between the two ways.
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Švec, Michal. "Zefektivnění výroby součásti z šicího stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417554.
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The diploma thesis deals with the proposal of more effective production process of the feeder holder component in the company MINERVA BOSKOVICE, a.s. The first part of diploma thesis dedicated to the technologies which are used in the production of components. The second part deals with the analysis of the component and its current production process. The third part contains a proposal for a new production process, which contains a description of the machines used for production, a new jig, selected tools, mechanical calculations and technological method. The last part evaluates the current and newly proposed variant of production with their comparison.
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Sedliačková, Michaela. "Studie průběhu zakázky podnikem." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224350.
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This master's thesis is aimed on the analysis during of the contractin company, followed by focusing on weakness and administration proposal to improve them. The aim is to optimize the course of the contract the company, with the consequent creation of added value for the producer and for the customer.
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Prokeš, Tomáš. "Výroba přírub s využitím postupu PPAP a normy ISO 9001." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241034.
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In the first part of this thesis is described implementation of quality management system in a small company according to ISO 9001. Next part is about production process by method PPAP. In this section is solved primarily ISO 9001 standard, statistical control of production and certification company according to requirements of ISO 9001. Second part is focused on mass production of flange by using the company facilities Kovobrábění Sobotka. In the end of thesis are reflected weaknesses of production. In the conclusion is described technical and economic evaluation of implementation QMS and machining sample parts.
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Hložek, Milan. "Obrábění odlitku převodovky na CNC stroji." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378980.
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The master’s thesis focuses on the machining of a chosen gearbox on a CNC machine. The theoretical part deals with gearboxes in general and the aluminium alloy from which a selected gearbox is manufactured. In the practical part, the machining of the gearbox is proposed according to the corresponding drawing. Gradually suitable machines are selected, then depending on their limits, clamping devices are designed, next a set of tools is selected and an NC program is generated. The technological process of production is proposed and the basic production costs are calculated.
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Stefan, Cezar, and Ioana Cocis. "Development and Analysis of Automated Data Collection Solutions for Tool Maintenance in CNC Machines : A Case Study in a Swedish SME." Thesis, Jönköping University, JTH, Produktionsutveckling, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53031.
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Since small-to-medium enterprises (SMEs) represent a backbone for sustainable economicgrowth, the need for increasing the degree of automation in production plants is pushing today’sengineers to find customized and cost-efficient solutions. In the Industry 4.0 context, SMEswhich are aspiring towards quality, competitiveness and overall customer satisfaction requireto work with a systematic approach for implementing cyber physical systems (CPS) that arefunctioning autonomously and independently from human interaction. An essential area withinmanufacturing is represented by the maintenance of CNC machine’s tools that are directlyresponsible for achieving high-quality products. Since corrective maintenance is associatedwith uncertainty, unforeseen costs and increased downtime, the focus is diverted towardsuprising trends of preventive and predictive maintenance policies. The purpose of this thesis isto increase knowledge in the field of new maintenance practices in the context of Industry 4.0and to provide a framework for achieving customizable automated solutions adapted for theneeds and requirements of each individual SME. The work has used a guideline which isfollowing to transform the needs of SMEs into technical specifications which are used fordesigning and generating conceptual solutions whose effect is assessed from technical,economic, socio-environmental, operational and schedule perspective. For this matter, a casestudy has been conducted in a Swedish SME where there is a need for developing an automatedsolution for data collection in order to enable preventive and predictive maintenance. Forachieving this purpose and contribute to filling the gap in academic research on this matter, aframework for development and analysis of automated data collections is created based on thesystematic practices of concept development methodology to which a supplementary feasibilityanalysis is added for increasing the understanding of their impact. Furthermore, this frameworkis conceived to offer a long-term holistic view of the future changes resulted by theimplementation of automated solutions.
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Straka, David. "Návrh výrobní technologie desky upínače pásové pily." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-451204.
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This thesis deals with the proposal of production technologies for a band saw clamp plate. Introduction of thesis is focused on problematics about selected component. In the next section, there are described technologies, which were used in the thesis. Practical part is about proposals of conventional and unconventional production methods. Methods are evaluated in the conclusion of thesis.
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KE, DING-SIANG, and 柯鼎祥. "A Study of Different Productions Properties of Five-Axis CNC Machine Products in Taiwan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/skg6ad.
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碩士<br>中州科技大學<br>機械與自動化工程系<br>106<br>Recently, many product designers of various industries, such as automobile, semiconductor, electronic parts, and mold industries rely to design products featured with complex surface. Request for the efficiency, accuracy and machining of these complex surface, it is the important way to achieve competition advantage by developing high efficiency, accuracy, and quality five-axis machining techniques.
With the needs for higher accuracy and better efficiency, five-axis machining is much more important in industry. Therefore, this study will analyze and compare the five-axis machine companys, but also introduces the three-axis machine tool processing.
In this study, the five-axis cutting optimization technology was also discussed on the workpieces through the choose of A, B, and C companys. The five-axis machining tool following (RTCP), cutting mode (CT), and spindle speed (RPM) were used. The feed rate (FD), the feed rate (DT), and the ball cutter diameter (SD) are the main affecting factors and statistical analysis is performed through Taguchi experimental data.
The results show that the surface roughness of the three five-axis machining machines after cutting the workpiece is better. The surface roughness of A company is better. The S/N ratio can also be seen that the S/N ratio is higher in the quality parameters of the A company. The tool wear of the three five-axis machining machines after cutting the workpiece is compared, and the A company has better wear. The S/N ratio can also be seen that the S/N ratio is higher in the quality parameters of the A company, and the processing life of the cutting tool can be better.
Books on the topic "CNC production machine"
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CNC machining handbook: Basic theory, production data, and machining procedures. Industrial Press, 1996.
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Myeyeryakova, Vyera, and Viktor Starodubov. CNC Metal-cutting Machines. INFRA-M Academic Publishing LLC., 2015. http://dx.doi.org/10.12737/5721.
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In the manual various ways of control of metal-cutting machines are considered, the principles of construction and possibility of systems of ChPU are given. Features of configurations and designs of machines with ChPU are presented,
 ways of expansion of their technological capabilities, increases of productivity, accuracy and reliability.
 The tasks solved during the training of managing directors of programs, feature of technological preparation, mathematical calculations and control unitary enterprise are considered. Programming bases for machines about ChPU, methods of adjusting are given,
 features of technological service and repair. It is intended for students of the higher educational institutions which are trained in the directions 151900 &#34;Design-technology ensuring machine-building productions&#34; (qualification — the bachelor) and 151000
 &#34;Technological machines and the equipment&#34; (qualification — the bachelor) on a preparation profile &#34;Metal-cutting machines and complexes&#34;, and also for preparation in lyceums, technical schools, on special courses of CNC operators, members of repair crews, technologists-programmers.
Book chapters on the topic "CNC production machine"
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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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Uhlmann, E., E. Hohwieler, and C. Geisert. "Monitoring of Slowly Progressing Deterioration of CNC-Machine Axes." In Intelligent Production Machines and Systems. Elsevier, 2006. http://dx.doi.org/10.1016/b978-008045157-2/50010-9.
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Shafik, Amro, and Salah Haridy. "An Integrated Design for a CNC Machine." In Advances in Systems Analysis, Software Engineering, and High Performance Computing. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6252-0.ch013.
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Computer Numerical Control (CNC) is a technology that converts coded instructions and numerical data into sequential actions that describe the motion of machine axes or the behavior of an end effector. Nowadays, CNC technology has been introduced to different stages of production, such as rapid prototyping, machining and finishing processes, testing, packaging, and warehousing. The main objective of this chapter is to introduce a methodology for design and implementation of a simple and low-cost educational CNC prototype. The machine consists of three independent axes driven by stepper motors through an open-loop control system. Output pulses from the parallel port of Personal Computer (PC) are used to drive the stepper motors after processing by an interface card. A flexible, responsive, and real-time Visual C# program is developed to control the motion of the machine axes. The integrated design proposed in this chapter can provide engineers and students in academic institutions with a simple foundation to efficiently build a CNC machine based on the available resources. Moreover, the proposed prototype can be used for educational purposes, demonstrations, and future research.
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Yu, YinQuan. "Optimization of Manufacturing Production and Process." In Smart Manufacturing - When Artificial Intelligence Meets the Internet of Things. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.92304.
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This chapter mainly introduces production processing optimization, especially for machining processing optimization on CNC. The sensor collects the original vibration data in time domain and converts them to the main feature vector using signal processing technologies, such as fast Fourier transform (FFT), short-time Fourier transform (STFT), and wavelet packet in the 5G AI edge computing. Subsequently, the main feature will be sent for cloud computing using genetic programming, Space Vector Machine (SVM), etc. to obtain optimization results. The optimization parameters in this work include machining spindle rotation velocity, cutting speed, and cutting depth, while, the result is the optimized main spindle rotation speed range of CNC, which met machining roughness requirements. Finally, the relationship between vibration velocity and machining quality is further studied to optimize the three operational parameters.
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Sahu, Anoop Kumar, Atul Kumar Sahu, and Nitin Kumar Sahu. "Benchmarking of Advanced Manufacturing Machines Based on Fuzzy-TOPSIS Method." In Theoretical and Practical Advancements for Fuzzy System Integration. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1848-8.ch012.
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The evaluation of the most appropriate Computer Numerical Control (CNC) machine tool is found foremost issue for sustaining the advanced manufacturing production units at competitive global market place. In last years, many evaluation parameter/ criteria/ issues (i.e. Cost [C], Tool Length [TL], Tool Diameter [TD], Metal Removal Rate [MRR], X-Y-Z-Axis Movement of Tool [AMT], etc.) carried out into account besides productivity, precision, accuracy, reliability etc prior to purchasing/electing CNC machine tools amongst preferred alternatives. This chapter exhibited a hypothetical case research pertaining to election of CNC machine tool under the qualitative parameter/criteria/issues excluding quantitative, where, subjective (qualitative) criteria are considered beside objective (quantitative) criteria and complexity to elect the best CNC machine tool is solved via subjective assessments of expert's panel also called the group decision making. In present research, TOPSIS algorithmic technique conjunction with Trapezoidal Fuzzy Number set (TFNs) is explored for appraising and benchmarking the preferable CNC machine tool options/ alternatives. Finally, a hypothetical case research is carried out to check the validity of proposed algorithmic technique for proposed module and exhibit the path for benchmarking alternative machine tools. The preferences orders are carried out in accordance with descending value of the ‘collective index'. Higher value of ‘collective index' reflects higher degree of performance.
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Fountas, N. A., A. A. Krimpenis, and N. M. Vaxevanidis. "Computational Techniques in Statistical Analysis and Exploitation of CNC Machining Experimental Data." In Computational Methods for Optimizing Manufacturing Technology. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0128-4.ch005.
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Extracting CNC machining data on- or off-line demands thorough and careful planning. Exploitation of this data can be carried out by statistical methods, in order to obtain the most influential parameters along with their respective level of significance. However, significance of machining parameters varies according to the posed Quality Characteristics at each machining phase. In actual experiments, measuring devices and assemblies are used, and data is recorded in computer archives. To shorten the production time and cost, machining processes are planned on CAM software, especially when complex part geometries, such as sculptured surfaces, are involved. Hence, planning machining experiments using CAM software modules is an efficient approach for experimentation on the actual CNC machine tools. Data extraction and statistical analysis methodologies are presented along with respective machining experimental examples.
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Ruiz-yRuiz, Hector E., Jesus Salinas-Coronado, Julian Israel Aguilar-Duque, Victor M. Juarez-Luna, Jose L. J. Sanchez-Gonzalez, and Guillermo Amaya-Parra. "Improved Laser Cutting Process in Textile-Automotive Industry." In Handbook of Research on Managerial Strategies for Achieving Optimal Performance in Industrial Processes. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0130-5.ch017.
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Increase productivity is the aim of any international company. Focus on achieve their goals many of them invest their resources to survive in a global competition. Under this paradigm, the present chapter exposes the problem that one automotive organization had with a CNC laser cutting machine used in the production process of airbags. The cutting process was identified as a botleneck slowing down the rest of the production process causing problems. TO overcome this problems a continuous improvement team was assembled. The problem was model as a travelling salesman problem and improvement was achieve. The economic benefits of the solution are presented to show the effectiveness of the proposed methodology.
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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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Mohd Hussin, Zarina, Kai Cheng, and Dehong Huo. "On-line modal identification of a CNC machining system based on surface roughness laser scattering." In Intelligent Production Machines and Systems. Elsevier, 2006. http://dx.doi.org/10.1016/b978-008045157-2/50038-9.
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Ruttico, Pierpaolo. "Innovative Construction Systems." In Additive Manufacturing. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9624-0.ch002.
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With the emergence of a new materialism in architecture and as a result of the ongoing advancements in digital technologies, computer numerically controlled (CNC) fabrication and 3D-printing are rapidly gaining popularity within the building construction industry. Robots, CNC machines, and algorithmic programming allow us to create new construction systems and innovative designs that otherwise might not be possible. This chapter analyzes adaptive and flexible systems that facilitate the design and the production processes of mass-customized building components through digital fabrication and assembly. The aspiration is to achieve morphological complexity and performance in material constituents: an engineering computational design process that envisions a sustainable built environment, with higher-level functionality and higher-level integration between material system and environment.
Conference papers on the topic "CNC production machine"
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Lin, Yhu-Tin, Chi-Hung Shen, and Pulak Bandyopadhyay. "Production Validation of Agile Machining Fixture: A Machine-Automated Reconfigurable Tooling." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31161.
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Agile machining fixture is a machine-automated reconfigurable tooling first introduced in 2003. The fixture is reconfigurable and programmable on a CNC machine. To evaluate its viability in production, the agile machining fixture is reconfigured from one machining operation to another for showing its flexibility to processing needs. The fixture is further tested and validated in a low volume production environment to address various challenges in product designs, machine conditions and process details. The good dimensional quality of the production parts machined in this study confirms that the agile machining fixture can perform as well as conventional ones on a regular CNC machine and thus deserves the consideration for future production implementation.
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Stock, David, Aditi Mukhopadhyay, Rob Potter, and Andy Henderson. "Tool Wear Analysis of MTConnect Production Data." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-63407.
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Abstract This paper presents the analysis of data collected using the MTConnect protocol from a lathe with a Computer Numerical Control (CNC). The purpose of the analysis is to determine an estimated cutting tool life and generate a model for calculating a real-time proxy of cutting tool wear. Various streams were used like spindle load, NC program blocks, the mode, execution etc. The novelty of this approach is that no information about the machining process, beyond the data provided by the machine, was necessary to determine the tool’s expected life. This method relies on the facts that a) it is generally accepted cutting loads increase with tool wear and b) that many CNC machines rely on a small set of regularly run CNC programs. These facts are leveraged to extract the total load for each run of each program on the machine, creating a dataset which is a good indicator of tool wear and replacement. The presented methodology has four key steps: extracting cycle metadata from the machine execution data; computing the integrated spindle loads for every cycle; normalizing the integrated spindle loads between different programs; extracting tool wear rates and changes from the resulting dataset. It is shown that the method can successfully extract the signature of tool wear under a common set of circumstances which are discussed in detail.
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Da Silva Paz Neto, Nei, and Marcus V. Americano da Costa. "4-Axis CNC Milling Machine for Production of Dental Prosthesis." In Congresso Brasileiro de Automática - 2020. sbabra, 2020. http://dx.doi.org/10.48011/asba.v2i1.1293.
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This paper presents the development of a 4-axis CNC milling machine for making dental restorations. The machine was developed to help spread knowledge about CAD/CAM to future professionals in healthcare area, including automation engineering. The CAD/CAM systems can be found in dental clinics and specialized laboratories with a high added value, as it brings reliability, precision, and speed to the prosthesis developed and, thereby, increasing the qualityof the nal product. With this high cost, not all dental professionals can have this type of technology. However, it is demonstrated the possibility of building these systems at a reduced cost and applying them to restorative dentistry. Therefore, this work results in instigating of the engineering education and training future professionals in mechatronics research with applications to the Odontology.
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Yagishita, H., and T. Iizuka. "New Design of Production Type CNC Hobbing Machine and its Gear Cutting Performance." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0011.
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Abstract A production type CNC hobbing machnie (a maximum module to be cut of 4 mm and a maximum workpiece diameter of 150 mm) has been newly designed and manufactured based on the concept that a special attention is paied to a rigidity and a thermal deformation of the machine structure as well as a rotational transmission mechanism to enable high speed drive. A maximum speed of hob shaft is 1200 rpm and a table speed is possible up to 160 rpm due to a full spur gear drive. A CNC controller used is a common type for a hobbing machine which has a 32 bit CPU and five axes are numerically controlled. By paying a special attention to a torsional rigidity and a dynamic synchronous error between a hob and table, some tests are carried out. The results are compared with those of a full mechanical drive (FMD) hobbing machine. It is ascertained that by high accuracy gear cutting tests spur gears are generated with a sufficiently high accuracy although a correction of synchronous error between a hob and table is not applied at all by NC software. Also, in a production shop, it is demonstrated that a lot of helical gears for automobile can be manufactured with high-productivity and high-accuracy, that is : a machining cycle time per one gear is shortened by shortening a loading and unloading time of gear blank; a lead error is maintained within a small deviation in spite of high feed rate; and a measured value by over roll method is maintained within a permitted limit during a continuously long machining operation, for example, all day-long.
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Bering, Tom, Stephen C. Veldhuis, Greg Bryson, and Peter Detmers. "Closed-Loop Feedback Control of Production Part Errors." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39088.
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This paper presents a new supervisory controller, designed to meet or exceed the tight quality specifications required of high-volume production parts. The process optimizing controller takes Co-ordinate Measuring Machine (CMM) data collected on Statistical Process Control (SPC) samples. It analyses the data and updates the program on a Computer Numerically Controlled (CNC) milling machine to optimize the overall production process. Part specifications, including dimensions between cast and machined features, are controlled through feedback. The controller improved process capability (Cp), and by targeting the mean on the nominal dimension it significantly improved the capability index (Cpk).
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Bohan, Zhao, Gao Feng, Li Yan, Zhang Dongya, Zhang Wanli, and Zhou Fei. "Study on Generation and Optimization Methodology of On-Machine Measurement Schemes for Multi-Axis CNC Machine Tool." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71263.
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Quality Control (QC) is one of the most important phases in the production process. In tradition, the workpiece must be inspected for dimension and shape errors in the QC lab or Coordinate Measuring Machine (CMM) after being machined, which is time-consuming and labor-intensive, especially for large scale parts. Thus the only practical way to do that is to migrate the critical primary inspection operations upstream from the QC lab or CMM to the production floor, and that’s what On-Machine Measurement (OMM) does. OMM technology can inspect the workpiece on its operating station by motion control and the position detection function of CNC machine tool, by which the measuring error caused by the misalignment between measuring datum and manufacturing datum can be avoided accurately. Therefore, it is a feasible way to achieve the real-time control of the manufacturing process and improve the manufacturing accuracy and efficiency. The servo axes of multi-axis CNC machine tool might be redundant for being used in OMM, which will result in that one measurement task could be done by different servo motion schemes. In addition, the map between the machine accuracy and measuring accuracy has not been found out previously. Thus, how to determine metering schemes to measure a workpiece with high accuracy and efficiency is one of the most important problems and also a hotspot for everybody. To solve this problem, a generation method of task-oriented OMM scheme is proposed. Utilizing multi-body system theory and transformation of homogeneous coordinates, a function relationship between the geometrical characteristic of workpiece as independent variables and motions of machine tool as dependent variables is established. All possible metering schemes are obtained by analyzing the solution of functional equation. Then the performance of measurement scheme can be evaluated by comparing the measuring errors of each scheme after building a mapping relationship between the machine tool volumetric errors and measuring errors. In the end, a case study was accomplished, and the correctness and efficiency of the methodology has been verified.
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Jalluri, Chandra, Prashanth Magadi, Mohan Viswanathan, Richard Furness, Werner Kluft, and Friedhelm Hostettler. "An Advanced Vibration Based Real-Time Machine Health and Process Monitoring System." In ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21093.
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The ever-increasing emphasis on product quality with increased productivity has been driving the automotive manufacturing industry to find new ways to produce high quality products without increasing production time and manufacturing costs. In addition, automotive manufacturing plants are implementing flexible manufacturing strategies with computer numerical control (CNC) machining centers to address excess capacity, shifting consumer trends and future volume uncertainty of products. Over time, plants have used several preventative and predictive maintenance methods to address machine reliability. Such systems include, but are not limited to, scheduling machine down times at regular intervals to check/replace bearings and other spindle/slide components before they can have an adverse affect on part quality. However, most of these methods and traditional systems are not cost effective and cause significant machine down-times, safety concerns and labor overheads and do not reliably monitor other process issues, such as, clamping, incoming stock variations and thermal phenomena. This paper describes an advanced real-time vibration based machine health and process monitoring system that has been developed to address the above issues. The system, called Condition Indicator Analysis Box for CNC (CIAB™-CNC), is easily configurable, and provides real-time data and historical trends of machines, processes and tooling, enabling manufacturing plants to make accurate predictions regarding future production runs. The system also aids in the optimization of preventative maintenance tasks in a cost effective manner. The developed system monitors machine spindle and slide for unbalance, misalignment, damaged/spalled bearings, mechanical looseness, and ball screw issues. Additionally, it performs in-process monitoring during machining as well as non-machining by individual tool and/or feature to detect tool breakages, quality issues and other gross process or machine anomalies. Innovative statistical trending algorithms enable the system to automatically adapt to valid process/parameter changes and significantly reduce the chances of false alarms and warnings. The developed system provides manufacturing plants with a tool to analyze machine tools and their associated components in an effort to gather information they can use effectively to make decisions regarding flexible machines, processes and tooling.
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Neugebauer, Reimund, Welf-Guntram Drossel, Steffen Ihlenfeldt, and Markus Wabner. "Design, Modeling and Functionality Allocation in Mechatronic Production Systems." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59571.
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This paper reviews current developments in mechatronic systems for metal cutting and forming machine tools. The integration of mechatronic modules to the machine tool and their interaction with manufacturing processes are presented. Sample mechatronic components for precision positioning and compensation of static, dynamic and thermal errors are presented as examples. The effect of modular integration of mechatronic systems on the reconfigurability and reliability of the machine tools is discussed along with intervention strategies during machine tool operations. The performance and functionality aspects are discussed through active and passive intervention methods. A special emphasis was placed on active and passive damping of vibrations through piezo, magnetic, and electro-hydraulic actuators. The modular integration of mechatronic components into the machine tool’s structure, electronic unit, and CNC software system is presented. The paper concludes with the current research challenges required to expand the application of mechatronics in machine tools and manufacturing systems.
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Max, Antonin, Lubos Rehounek, and Tomas Keckstein. "Finite Element Analysis of a CNC Milling Machine Frame." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65613.
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A computer numerically controlled (CNC) milling center is a machine tool for the production of parts with planar, cylindrical and shaped surfaces. The milling center analyzed here includes an open frame — a structure resembling the shape of the letter C. The main cutting motion is performed by a tool clamped in the spindle. Secondary motion can be linear, rotary or a combination of these. Linear movements in three axes are performed by the tool by means of linear motion components (i.e. motion screws and linear guide rails). Rotary motion is performed only when the workpiece is clamped to the rotary table which is mounted on the mounting plate. The basic demands placed on the structure of a milling center include high static and dynamic stiffness during machining processes. This article is primarily aimed at evaluating the response of the frame of the CNC milling machine to the excitation caused by the fluctuation of cutting forces due to step changes in the number of engaged cutting edges. To ensure optimum machining conditions it is important to set suitable cutting conditions for a frame structure with sufficient stiffness. Unsuitable cutting conditions and low stiffness of the machine frame may lead to dimensional inaccuracies of the workpiece, to decreased quality of the machined surfaces or even to the destruction of the tool cutting edges. The aims of the study include the determination of the static deformation, modal analysis to assess the dynamic properties of the frame, and harmonic response analysis, taking into consideration the amplitudes of the loading forces specified in accordance with the recommended operating conditions of the individual tools. Finite element method (FEM) analyses of the frame were performed using MSC.Marc software. Due to the high structural complexity of the computer aided design (CAD) model, the computational model for the FEM analysis had to be simplified. Only the major structural parts and the connecting parts were meshed in detail, combining both structured and unstructured mesh. Geometrically complicated cast parts with large changes of thickness were meshed with linear tetrahedral elements (tetra4) with full integration. Rotationally symmetrical parts, plates and linear guide rails components were meshed with linear brick elements (hex8) with full integration. The overall number of elements was approximately 1,400,000. Tools, including the clamping head and the spindle, are represented by approximate meshes of brick elements. However, a detailed FEM model of the spindle and the tool would be needed for the analysis of the self-excited oscillations during machining, which is the subject of a large number of scientific publications. Increased attention was paid to the incorporation and set-up of the springs between corresponding pairs of nodes of the meshed linear motion components. As a computational model for modal and harmonic response analyses needs to be strictly linear, only linear elastic material properties and linear springs were defined in the analyses presented here.
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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”.