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Relevant bibliographies by topics / ECONOMICAL MACHINING

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Academic literature on the topic 'ECONOMICAL MACHINING'

Author: Grafiati

Published: 11 September 2023

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Journal articles on the topic "ECONOMICAL MACHINING"

1

Hong, Shane Y. "Economical and Ecological Cryogenic Machining." Journal of Manufacturing Science and Engineering 123, no. 2 (September 1, 1999): 331–38. http://dx.doi.org/10.1115/1.1315297.

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To eliminate health and environmental problems caused by using conventional cutting fluid in the machining industry, a new economical and practical approach to cryogenic machining technology was developed. Using micro nozzle jetting to the cutting point locally, this approach minimizes the amount of liquid consumption to levels at which nitrogen costs less than conventional cutting fluid. It reduces tool wear and lengthens tool life up to five times, thereby allowing for high-speed cutting, improving productivity and reducing overall production cost. In addition, this approach reduces the frictional force, improves chip breaking, eliminates build-up edge, and improves surface quality. This paper discloses the new cryogenic machining approach, and assesses the econom- ics of the process in comparison with state-of-the-art conventional emulsion cooling.

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Zhou, Hong. "How to Guarantee the Machining Accuracy of the Improved Numerical Control Machine." Advanced Materials Research 655-657 (January 2013): 1242–45. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.1242.

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Advancing the machining accuracy of machine tool is one of aim of numerical control machine improving . There are many effecting machining accuracy factors of economical numerical control machine tool driven by a stepper motor . The way of improving machining accuracy and compensation method were put forward in this paper .

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SHARMA, RAJEEV, Binit Kumar Jha, and Vipin Pahuja. "ROLE OF SUSTAINABLE TECHNIQUES IN MANUFACTURING PROCESS: A REVIEW." International Journal of Engineering Technologies and Management Research 8, no. 2 (February 17, 2021): 41–45. http://dx.doi.org/10.29121/ijetmr.v8.i2.2021.869.

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Customary mineral based liquids are as a rule broadly utilized in cooling and greases in machining activities. Nonetheless, these cutting liquids are the suitable wellspring of numerous natural and organic issues. To kill the evil impacts related with cutting liquids, it is important to move towards practical machining methods. Such sustainable machining techniques utilize minimize the amount of cutting liquid, fluid nitrogen, vegetable oil or packed air as a cooling-oil medium. The liquids utilized in economical machining strategies are viewed as absolutely biodegradable and Eco-friendly. This paper is a careful survey of the relative multitude of current environmental friendly machining methods as of now rehearsed in the metal cutting cycle. It has been likewise discovered that these economical machining strategies more often than not give better outcomes as far as improved surface nature of the machined part, upgraded apparatus life, less cutting temperatures and slicing powers when contrasted with traditional wet machining techniques. The principle motivation behind this survey work is to recognize the diverse supportable strategies and empower the utilization of such procedures in metal machining, so that, the reducing interaction turns out to be more expense powerful and climate inviting.

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Liu, Zhan Qiang, Xing Ai, and Zhao Hui Wang. "A Comparison Study of Surface Hardening by Grinding Versus Machining." Key Engineering Materials 304-305 (February 2006): 156–60. http://dx.doi.org/10.4028/www.scientific.net/kem.304-305.156.

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This paper presents a comparison study of surface hardening by grinding versus machining. The technological, economical and ecological merits of machining hardening and grind-hardening process for steels are described. The mechanisms of machining hardening and grind-hardening of steels are investigated and compared. The phase transformation, plastic deformation and white layer generation are the principal factors contributing to the hardened surface layer by machining and grinding. The influences of the process parameters on the penetrated hardness are given for both grind-hardening and machining hardening operations. The future development trends of the grind-hardening and machining hardening are also presented.

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Kozak, J., K. P. Rajurkar, and S. Z. Wang. "Material Removal in WEDM of PCD Blanks." Journal of Engineering for Industry 116, no. 3 (August 1, 1994): 363–69. http://dx.doi.org/10.1115/1.2901953.

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Polycrystalline diamond (PCD) tools are now widely used in machining a large variety of advanced materials. However, the manufacture of PCD tool blanks is not an economical and efficient process. The shaping of PCD blanks with conventional machining methods (such as grinding), is a long, labor-intensive and costly process. Wire electric discharge machining (WEDM) promises to be an effective and economical technique for the production of tools from PCD blanks. However, a knowledge base for wire electrical discharge machining of PCD blanks needs comprehensive investigations into the proper parameter setting, metal removal mechanisms, and surface integrity of machined blanks. This paper presents the results of experimental and theoretical investigations of the influence of discharge frequency and discharge energy on the material removal rate of WEDM of PCD blanks. The mechanism of removing diamond grains from the matrix during electrical erosion is also discussed on the basis of thermal stresses between the diamond grain and cobalt phase.

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Silva, Francisco J. G., Vitor F. C. Sousa, Arnaldo G. Pinto, Luís P. Ferreira, and Teresa Pereira. "Build-Up an Economical Tool for Machining Operations Cost Estimation." Metals 12, no. 7 (July 15, 2022): 1205. http://dx.doi.org/10.3390/met12071205.

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Currently, there is a lack of affordable and simple tools for the estimation of these costs, especially for machining operations. This is particularly true for manufacturing SMEs, in which the cost estimation of machined parts is usually performed based only on required material for part production, or involves a time-consuming, non-standardized technical analysis. Therefore, a cost estimation tool was developed, based on the calculated machining times and amount of required material, based on the final drawing of the requested workpiece. The tool was developed primarily for milling machines, considering milling, drilling, and boring/threading operations. Regarding the considered materials, these were primarily aluminum alloys. However, some polymer materials were also considered. The tool first estimates the required time for total part production and then calculates the total cost. The total production time is estimated based on the required machining operations, as well as drawing, programming, and machine setup time. A part complexity level was also introduced, based on the number of details and operations required for each workpiece, which will inflate the estimated times. The estimation tool was tested in a company setting, comparing the estimated operation time values with the real ones, for a wide variety of parts of differing complexity. An average error of 14% for machining operation times was registered, which is quite satisfactory, as this time is the most impactful in terms of machining cost. However, there are still some problems regarding the accuracy in estimating finishing operation times.

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Liu, Y. H., Y. F. Guo, and J. C. Liu. "Electric discharge milling of polycrystalline diamond." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 211, no. 8 (August 1, 1997): 643–47. http://dx.doi.org/10.1243/0954405981516580.

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Polycrystalline diamond (PCD) has been used widely in modern industry. However, the manufacture of PCD blanks is not an economical and efficient process. The shaping of PCD blanks with conventional machining methods (such as grinding), is a long, labour-intensive and costly process. Electromachining processes promise to be effective and economical techniques for the production of tools and parts from PCD blanks. Wire electric discharge machining is able to effectively slice PCD. Electrical discharge machining (EDM) and electrical discharge grinding (EDG) shape PCD blanks at a lower cost. However, EDM and EDG of a large surface area on PCD show lower efficiency. This paper presents a new process of machining PCD using electrical discharge (ED) milling. ED milling employs a DC source instead of the pulse generator used in EDM, and uses a water-based emulsion as the machining fluid. This process is able to effectively machine a large surface area on PCD, and effectively machine other advanced conducting materials such as cubic born nitride (CBN), and ceramics. The effect of pulse on-time, peak current, and polarity on the process performance has been investigated.

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Klocke, Fritz, Markus Zeis, and Andreas Klink. "Technological and Economical Capabilities of Manufacturing Titanium- and Nickel-Based Alloys via Electrochemical Machining (ECM)." Key Engineering Materials 504-506 (February 2012): 1237–42. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1237.

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In this paper technological and economical capabilities of manufacturing titanium- and nickel-based alloys via unpulsed Electrochemical Machining (ECM) are presented. A standardized test to receive typical workpiece material removal properties according to its electrochemical machinability is introduced. First of all the experimental setup of this test is described in detail. The test results for the materials Ti-6Al-4V and Inconel 718 are presented and discussed. Here the feed rate – current density- and surface roughness – current density curves are in focus. With help of these two functions as an example out of many possible applications the capability of blisk manufacturing by electrochemical machining is quantified. Therefore the theoretical machining times for both materials of substituted blisk geometry are calculated. Finally on this basis an economical comparison between ECM and milling as rough estimation is executed.

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Ingemansson, A. R. "TECHNICAL AND ECONOMICAL ANALYSIS OF EFFICIENCY CHANGES OF TECHNOLOGICAL PROCESSES OF MACHINING DUE TO IMPLEMENTATION OF DIGITAL PRODUCTION SYSTEMS." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 8(243) (August 28, 2020): 32–35. http://dx.doi.org/10.35211/1990-5297-2020-8-243-32-35.

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Kusa, Martina, and Frantisek Pechacek. "Design of Experiments and Definition of Criteria for the Evaluation and Analysis of the Process of Machining in a Robotic System." Applied Mechanics and Materials 474 (January 2014): 85–90. http://dx.doi.org/10.4028/www.scientific.net/amm.474.85.

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Machining of different materials brings increasing of productivity, economical effectivity and quality of work piece. Constant development of Robotics and information systems brings new views of using robots in a process of production. Instead of using robots for a purpose of manipulation with work pieces, it is possible to use a robot directly for machining. Robotics machining technology has its advantage in application, which represents an adequate alternative in machining of metals on tradition of machine systems. The aim of the suggested plan of the experiment is to identify the optimal approach and combinations of each parameter during milling.

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Dissertations / Theses on the topic "ECONOMICAL MACHINING"

1

Bothner, Rose. "An optimization model for selecting the economical cutting parameters in an external forward turning operation /." Online version of thesis, 1990. http://hdl.handle.net/1850/10592.

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Pavliš, Jan. "Návrh technologie výroby zadané součásti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-432687.

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The thesis convey the information about creation of technology for the production of a part assigned by the company Frentech Aerospace s.r.o. The teoretical part is focused on analysis to problematic of machining. The practical part describes production of given part now and proposal new production plan also with tool management. The conclusion of thesis is devoted to economical evaluation of both production plans.

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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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ROBIGLIO, MATTEO. "Modelling and optimization of machining processes towards economic and environmental sustainability." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2674416.

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In recent years, the increase in energy demand and carbon emission constraints have forced industry sector to improve the process efficiency with respect to environmental sustainability. Therefore, resource saving has become not only an added value, but a real priority for manufacturing in the Industry 4.0 era. Life-Cycle Assessment (LCA) is a common practice for estimating the environmental impact of products during their life-cycle, and can be used more widely and easily if specific models focusing on each life-cycle phase are available. In this thesis, the manufacturing phase of machined products has been modelled by analyzing different process performance metrics. Both the economic efficiency and the environmental sustainability have been accounted for. The Specific Production Time (SPT) is proposed as indicator of the manufacturing productivity; the Specific Production Cost (SPC) is developed in order to quantify the direct and indirect costs related to the manufacturing process; finally, the Specific Energy Requirement (SER) and the Specific Carbon Emission (SCE) indices are proposed in order to assess the environmental sustainability of the manufacturing phase in terms of primary energy demand and carbon footprint, respectively. The models have been developed in order to be valid for conventional machining processes in which cutting tools with defined cutting edge are used. The models are also aimed at the identification of optimum process parameters which allow to minimize each specific goal. In particular, optimum tool life values can be computed as a function of the machine tool, the cutting tool, the metalworking fluid, and the workpiece material. As a consequence, optimum process parameters such as cutting speed can be selected with respect to a specific tool life criterion. The high-efficiency machining range (widely known in literature) has been extended by considering all the four optimal cutting speeds (or tool life values) that minimize each production indicator. Hence, a trade-off criterion is proposed and developed by the introduction of a holistic function which can assign different weights on each optimization target. This advanced optimization method is suggested in order to identify a unique value of cutting speed (or tool life) which can be seen as a compromise among the different criteria of time, cost, and environmental sustainability. Four case studies have been considered in order to apply the proposed models and are focused on the turning of two titanium-based alloys conventionally used for aerospace applications: a Ti-6Al-4V alloy and a Ti-48Al-2Cr-2Nb intermetallic alloy. A Graziano SAG 101 CNC turning lathe was used in the experiments in order to obtain inventory data to test the models. Various set of process parameters such as depth of cut, feed, and cutting speed have been tested in order to identify the coefficients of the Taylor’s tool life equation which plays a key role within the proposed models. Three different cutting tools were used. Finally, four lubrication/cooling conditions were adopted such as dry, wet, Minimum Quantity Lubrication (MQL), and Minimum Quantity Cooling (MQC). Overall, the four case studies are presented in order to assess the influence of (1) process parameters, (2) cutting tool geometries, (3) workpiece materials, and (4) lubrication/cooling conditions onto the machining performance measured by the proposed models. The wide applicability of the developed models has been proved by the results related to the analyzed case studies. In particular, the results highlighted that the proposed metrics are suitable for a proper selection of machining conditions that enable at the same time resource savings as well as reduced environmental impacts.

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Van, Hulle Paul Allen. "An effective curriculum for teaching computer numerical control machining." CSUSB ScholarWorks, 2002. https://scholarworks.lib.csusb.edu/etd-project/2131.

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The purpose of this project was to develop and document curricular content for Computer Numerical Control education program for Mt. San Jacinto Community College. The design of the curriculum focuses on showing students how skills learned in academic classes can be applied to the workplace.

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Contrucci, João Gabriel [UNESP]. "Aplicação de redes neurais artificiais na predição de diâmetro e rugosidade durante o processo de furação." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/87194.

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Made available in DSpace on 2014-06-11T19:22:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-01Bitstream added on 2014-06-13T20:09:49Z : No. of bitstreams: 1 contrucci_jg_me_bauru.pdf: 2454572 bytes, checksum: 7843bddaf20e07b30304b6613b501c4d (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O mercado, de maneira geral, vem exigindo níveis de quantidade cada vez maiores e redução de custos operacionais. Dentro desse contexto, as indústrias buscam processos mais automatizados e robustos, visando padronização nas operações e redução dos desperdícios. O controle eficaz o processo de fabricação é chave para atender às crescentes exigências do mercado. A utilização de redes neurais artificiais para o controle de processos complexos, com inúmeras variáveis, é um método que vem ganhando destaque acadêmico ao longo dos anos. O processo de furação para instalação de prendedores em estruturas aeronáuticas é um processo especial, no qual são exigidos controle rigorosos de qualidade devido aos requisitos de projeto, sendo, em muitos casos, mais importante a qualidade da furação, do que a vida útil da ferramenta. Este trabalho tem por objetivo apresentar um método para predição de diâmetros médicos e rugosidade de furos realizados durante o processo de furação de ligas aeronáuticas por meio de brocas helicoidais. Com a utilização de um sistema multi sensores acoplados a uma fresadora extrairam-se sinais, potência do motor elétrico, emissão acústica, vibração e forças de usinagem que alimentaram uma primeira rede neural artificial feedforward que teve a função de estimar a rugosidade e o diâmetro médio do furo. Uma vez de posse do valor estimado, ele servia de entrada em uma segunda rede neural time delay - TDNN que atuou na predição da rugosidade e diâmetro médio do próximo furo a ser realizado, mesmo antes de esse ser realizado mecanicamente. Posteriormente, buscou-se o mesmo procedimento previamente descrito, porém utilizando apenas apenas os sinais de potência e força no eixo Z como entrada da rede neural de estimação. Todos os valores preditos apresentaram erros pequenos...
The market, in general, is demanding high levels of quality and reduction of the operational costs. The majority of companies has been searching for processes even more automatic and robust, aiming to standardize operations and reduce wastage. The effective control of the manufacturing process is the key for the growing market demands. The use of artificial neural networks for the control of complex processes, with many variables, has been drawing attention over the last years. The drilling process for fastenes installation in aircraft structures is a special process which requires a rigorous quality control due to the design requirements and, in may cases; the most important characteristic is the quality of hole. This work aims to present a method for prediction of diameter and surface roughness of holes performed in aeronautic alloys with carbide drill bit. Using a multi sensory system connected to a milling machine, signals were extracted (electric power, acoustic emission, vibration, cutting forces) and fed up into artificial neural network feedforward that had the function of estimating the surface roughness and the final diameters of the holes. The estimated values were used as inputs to a time delay neural network (TDNN) that acted in the prediction of the surface roughness and the final diameter of the next hole carried through, even before this hole was performed. Also, only the electrical motor power and force in Z axis were used as inputs to the first artificial neural network. All predicted values showed small errors when compared to the actual and the estimated values, the method was able to... (Complete abstract click electronic access below)

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7

Contrucci, João Gabriel. "Aplicação de redes neurais artificiais na predição de diâmetro e rugosidade durante o processo de furação /." Bauru : [s.n.], 2012. http://hdl.handle.net/11449/87194.

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Orientador: Paulo Roberto de Aguiar
Banca: Amauri Hassui
Banca: José Alfredo Covolan Ulson
Resumo: O mercado, de maneira geral, vem exigindo níveis de quantidade cada vez maiores e redução de custos operacionais. Dentro desse contexto, as indústrias buscam processos mais automatizados e robustos, visando padronização nas operações e redução dos desperdícios. O controle eficaz o processo de fabricação é chave para atender às crescentes exigências do mercado. A utilização de redes neurais artificiais para o controle de processos complexos, com inúmeras variáveis, é um método que vem ganhando destaque acadêmico ao longo dos anos. O processo de furação para instalação de prendedores em estruturas aeronáuticas é um processo especial, no qual são exigidos controle rigorosos de qualidade devido aos requisitos de projeto, sendo, em muitos casos, mais importante a qualidade da furação, do que a vida útil da ferramenta. Este trabalho tem por objetivo apresentar um método para predição de diâmetros médicos e rugosidade de furos realizados durante o processo de furação de ligas aeronáuticas por meio de brocas helicoidais. Com a utilização de um sistema multi sensores acoplados a uma fresadora extrairam-se sinais, potência do motor elétrico, emissão acústica, vibração e forças de usinagem que alimentaram uma primeira rede neural artificial feedforward que teve a função de estimar a rugosidade e o diâmetro médio do furo. Uma vez de posse do valor estimado, ele servia de entrada em uma segunda rede neural "time delay" - TDNN que atuou na predição da rugosidade e diâmetro médio do próximo furo a ser realizado, mesmo antes de esse ser realizado mecanicamente. Posteriormente, buscou-se o mesmo procedimento previamente descrito, porém utilizando apenas apenas os sinais de potência e força no eixo Z como entrada da rede neural de estimação. Todos os valores preditos apresentaram erros pequenos... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The market, in general, is demanding high levels of quality and reduction of the operational costs. The majority of companies has been searching for processes even more automatic and robust, aiming to standardize operations and reduce wastage. The effective control of the manufacturing process is the key for the growing market demands. The use of artificial neural networks for the control of complex processes, with many variables, has been drawing attention over the last years. The drilling process for fastenes installation in aircraft structures is a special process which requires a rigorous quality control due to the design requirements and, in may cases; the most important characteristic is the quality of hole. This work aims to present a method for prediction of diameter and surface roughness of holes performed in aeronautic alloys with carbide drill bit. Using a multi sensory system connected to a milling machine, signals were extracted (electric power, acoustic emission, vibration, cutting forces) and fed up into artificial neural network "feedforward" that had the function of estimating the surface roughness and the final diameters of the holes. The estimated values were used as inputs to a time delay neural network (TDNN) that acted in the prediction of the surface roughness and the final diameter of the next hole carried through, even before this hole was performed. Also, only the electrical motor power and force in Z axis were used as inputs to the first artificial neural network. All predicted values showed small errors when compared to the actual and the estimated values, the method was able to... (Complete abstract click electronic access below)
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Калюжний, І. В., Анна Олександрівна Нешта, Анна Александровна Нешта, and Anna Oleksandrivna Neshta. "Порівняння економічного ефекту способів обробки круглої внутрішньої різі." Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67402.

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Для доведення ефективності способу оброблення внутрішніх різей методом безцентроїдного огинання із застосуванням непрофільного інструменту у порівнянні зі способами, що засновані на методі копіювання проведений розрахунок за приведеною собівартістю на одну деталь Корпусу бурової коронки з внутрішньою різзю.

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Podešva, Martin. "Optimalizace procesů a managementu údržby linky ve výrobě ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400961.

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This master thesis scrutinizes maintenance of production line made of two grinding machines used in bearing production. In the first section of the work, general principles of industrial maintenance are summarized. In the following practical section, maintenance of the production line is analysed. A calculation for determining production line downtime costs caused by machine failure is designed enabling an analysis of the effectiveness of investment into the diagnostic system of the machine. Lastly, possible measures for optimization of the production line’s maintenance are proposed.

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Drozdov, Filipp. "Problematika uvádění obráběcích center na trh Evropské unie a Společenství nezávislých států." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433557.

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This thesis discusses introducing CNC machining centers to the markets of the European Union and the Commonwealth of Independent States (currently the Eurasian Economic Union). The first chapter of the thesis focuses on the legal requirements for placing the products on the markets of the European Union and the Eurasian Economic Union, their comparison, systematic analysis of the problem, and certification schemes. The second chapter of the thesis analyses safety requirements for CNC machining centers, discusses CNC machines checklists development and their comparison for the markets of the European Union and the Eurasian Economic Union.

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Books on the topic "ECONOMICAL MACHINING"

1

Swenson, Clifford. Advanced high-tech machining systems: A technical/economic study. Stamford, Conn., U.S.A: Business Communications Co., 1986.

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Zhang, Mingbo. Application of mathematical programming methods to the machining economics problem. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1991.

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DataGroup, Editorial. Precious Metal Surface Treatment and Machining Contractors World Summary: 2020 Economic Crisis Impact on Revenues and Financials by Country. Independently Published, 2020.

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DataGroup, Editorial. Metal Surface Treatment and Machining Contractors - Clock and Watch Industry World Summary: 2020 Economic Crisis Impact on Revenues and Financials by Country. Independently Published, 2020.

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Book chapters on the topic "ECONOMICAL MACHINING"

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Pradhan, Subhadip, Sushreesudha Sahu, Sourav Sanket Tripathy, Sudhansu Ranjan Das, and Debabrata Dhupal. "Material Removal Rate Analysis for Economical Feasibility Study in Abrasive Jet Machining with Different Temperatures Using K-92 Ceramic." In Modern Manufacturing Systems, 455–72. New York: Apple Academic Press, 2022. http://dx.doi.org/10.1201/9781003284024-35.

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Dixit, U. S., D. K. Sarma, and J. Paulo Davim. "Economics of Environmentally Friendly Machining." In Environmentally Friendly Machining, 77–80. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4614-2308-9_7.

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DeVries, Warren R. "Machining Economics and Optimization." In Analysis of Material Removal Processes, 190–207. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-4408-0_7.

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Jackson, Mark J., M. D. Whitfield, G. M. Robinson, R. G. Handy, Jonathan S. Morrell, M. B. da Silva, and A. R. Machado. "Economic Analysis of Machining with Nanostructured Coatings." In Machining with Nanomaterials, 177–99. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19009-9_7.

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El-Hofy, Hassan. "Tool Wear, Tool Life, and Economics of Metal Cutting." In Fundamentals of Machining Processes, 89–112. Third edition. | Boca Raton, FL: CRC Press/Taylor & Francis Group,: CRC Press, 2018. http://dx.doi.org/10.1201/9780429443329-4.

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Tipnis, Vijay H. "Economic Models for Process Development." In Handbook of High-Speed Machining Technology, 436–46. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-6421-4_19.

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Kumar, Kaushik, Divya Zindani, and J. Paulo Davim. "Virtual Manufacturing: Scope, Socio-economic Aspects and Future Trends." In Materials Forming, Machining and Tribology, 195–201. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76075-9_13.

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Szántai, T., I. Mészáros, and J. Völgyi. "Stochastic Optimization Models for Machining Operations." In Lecture Notes in Economics and Mathematical Systems, 329–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-88272-2_17.

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Neugebauer, R., U. Priber, H. Rentzsch, S. Ihlenfeldt, and D. Hoffmann. "Mobile Systems for Machining Large Work Pieces." In Enabling Manufacturing Competitiveness and Economic Sustainability, 135–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23860-4_22.

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Rangasamy, Nithin, Roan Kirwin, and C. S. Rakurty. "A Comparative Sustainability Assessment of Cutting Fluids Usage in Band Sawing." In Lecture Notes in Mechanical Engineering, 21–29. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-28839-5_3.

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AbstractCutting fluids used in machining have received a lot of attention due to their adverse environmental and economic effects. Researchers have studied cutting fluid usage in traditional machining processes such as turning, facing, milling, etc. However, few studies focused on the cutting fluid used in band sawing applications. This study reports a literature review of the usage of the cutting fluid in band sawing and their sustainable and economic aspects. A review of the literature and industrial data has shown that the majority of band saw blades use high-speed steel as the cutting tool material for cutting metal. This study presents a metric-based sustainability assessment and a detailed analysis of recent economic factors such as the cost of the cutting fluids used in band sawing through industrial case studies. A global survey of the cutting fluid usage in the bandsawing application has shown that the majority of the industry is employing flood coolant application. The flood coolant application cost can be as high as 8% of the total consumables cost of the band sawing process.

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Conference papers on the topic "ECONOMICAL MACHINING"

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Kozak, J., and K. P. Rajurkar. "Pressure Generated During Pulse Electrochemical Machining." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/med-23342.

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Abstract Pulse electrochemical machining (PECM) provides an economical and effective method for machining high strength, heat-resistant materials into complex shapes such as turbine blades of titanium alloys. The dimensional accuracy of PECM can be improved if a small interelectrode gap is maintained. This paper presents an interelectrode gap model for estimating pulse pressure generated after pulse current switched on, and the subsequent dynamic loading on the electrodes during PECM. A specially built PECM cell and a high-speed data acquisition system are used to measurement of wave pressure for verification of estimated values.

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Medelli´n Castillo, Hugo I., and J. Abraham Loredo Rami´rez. "Development of an Economical System for Electrical Discharge Machining (EDM) in Water." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39273.

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Electrical discharge machining (EDM) is a non-traditional machining process which has been widely used to manufacture dies and molds in industries such as aerospace, automotive, and surgical. Since EDM does not make direct contact between the tool and the workpiece, mechanical stresses, chatter and vibration problems during machining are eliminated. Moreover, materials of any hardness can be machined as long as they can conduct electricity. However, the use of hydrocarbon oil (commonly used as dielectric in commercial EDM machines) liberates harmful vapours, which represents health and safe risk. Research in the last three decades has involved the use of water as dielectric and the advantages that this implies. Most of the equipment used to perform EDM in water is based on commercial EDM machines, originally designed for hydrocarbon oil as dielectric, and that have been modified to stand water. In this paper the development and design of an economical EDM machine to be used with water as dielectric is presented. The main objective was to design an economical, simple, and effective system with augmented capabilities to perform EDM in water. The EDM system has been developed and the design of the main components is described in this paper. Some experimental tests of EDM in water have been carried out and the results have proved the functionality of the system.

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Waldorf, Daniel, Scott Liu, Michael Stender, and Daniel Norgan. "Alternative Binder Carbide Tools for Machining Superalloys." In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72369.

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This study examines the performance of a new class of wear-resistant but economical cutting tools produced by varying the binder composition of standard cemented carbide composites. By replacing some or all of the cobalt binder with rhenium and nickel-based superalloy, a stronger composite tool results, potentially capable of machining heat-resistant superalloys at significantly higher cutting speeds. Sample tools with alternative binder were produced and compared to standard tools bound with cobalt only. Turning experiments on Inconel 718 were run to evaluate wear resistance and tool life for several grades. The experimentation also examined the effects of varying the relative proportions of each binder constituent as well as the overall binder percentage in the composite. Results show a clear advantage of the alternative binder tools as evidenced by a 150% increase in tool life or the equivalent of an 18% increase in cutting speed. Although increasing amounts of rhenium in the binder show a positive effect on performance, the effects of superalloy and overall binder % are inconclusive.

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Hong, Shane Y., and Y. Ding. "Manipulating Machining Temperature for Chip Breaking Improvement." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0810.

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Abstract Low carbon steel AISI 1008 is known to be difficult for chip breaking in conventional machining. This paper presents an environmentally safe cryogenic machining approach to improve the material properties for easy chip breaking. The ductile-brittle transition temperature for AISI 1008 was experimentally determined to be between −50°C and −120°C. To achieve this temperature in chips, liquid nitrogen was selectively injected to the chip forming area in the cutting process. Finite element analysis was used to predict the temperature distribution under various cutting conditions. Accordingly, the liquid nitrogen spray pattern was fine-tuned so the chip would reach the ductile-brittle transition temperature at chip breaking area. This approach minimizes the consumption of liquid nitrogen, making the process economical and practical. It also avoids the negative effect of increasing the cutting force due to hardness and shear strength increase of the workpiece material at cryogenic temperatures. Cutting tests performed on a CNC turning center showed significant improvement of chip breakability for a given range of feeds and speeds.

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Krishna, Ankur, and Bilal Muhammed. "Remaining Useful Life Prediction Based on Spindle Load and Cutting Process Parameters in Machining." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10571.

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Abstract Tool wear increases machining resistance, part dimensional inaccuracy and machining vibration. Tool wear monitoring and Remaining Useful Life (RUL) prediction of the tool during machining operation will assist a machine operator to provide tool wear compensation at the right time and plan the tool change activity. These aspects become significantly important for economical and quality production. This work focuses on a physics and data-based approach for monitoring cutting tool wear state and Remaining Useful Life (RUL) during a machining operation by adapting a well-known empirical wear-rate equation. The constants in the model are estimated based on machine heuristics which depends on the tool-machine-workpiece combination. The proposed model takes real-time spindle power and machining process parameters as inputs, which are obtained directly through querying the CNC controller. Therefore, it does not require the mounting of any external sensors on the CNC machine tool. Hence, the proposed method is a more economical and convenient way to predict tool wear and RUL in a machining shop floor. The model is validated from experimental data and it can capture the progression of tool wear and RUL of the tool at any point of time during a machining operation. Since the model captures the physics of tool wear and machining heuristics, it is more robust than a purely data-based model.

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Nonaka, Shinri, Tastuhiro Mori, Yasuyuki Takata, and Masamichi Kohno. "The Effect of the Laser Beam Wavelength and Pulse Width on Micro Grooving: Comparison of Nanosecond and Femtosecond Laser." In ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icnmm2012-73135.

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Processing technique of micro grooves and channels is very important to study the phenomenon of fluids in micro scale. Micro grooves and microchannels play an important role in various devices, such as μ-TAS (Micro-Total Analysis Systems) and micro reactors. Laser processing is currently widely used for drilling and grooving of various materials including metals, polymers, glasses and composite materials, since laser machining can avoid the problems that conventional machining methods have. For example wear of a working tool, lowering of processing accuracy, and wear debris becoming contaminants are some of the problems of the conventional method. Additionally, compared to other non-contact machining processes such as electron beam machining (EBM) and focused ion beam (FIB), machining a vacuum is not required. Therefore, applicability is wider and setup costs can be more economical.

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Ma, Chi, Limin Gao, Yutong Cai, and Ruiyu Li. "Robust Optimization Design of Compressor Blade Considering Machining Error." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63157.

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The machining error is inevitably produced during the actual manufacturing process of the compressor blade, which leads to the degradation of the aerodynamic performance to some extent. In order to reduce the influence of the machining error, this paper carried out a research on the robust optimization design considering manufacturing error. Scheme of optimization design in this paper is more economical than the scheme of directly increasing the manufacturing precision. The controlled diffused airfoil in the research is parameterized by the application of Non-Uniform Rational B Spline (NURBS) curve. A coordinate measuring machine is used to obtain the distribution of the machining error uncertainty. To ensure the high efficiency of the robust design, the uncertainty quantification is made by using the method of Non-intrusive polynomial chaos (NIPC) expansion. In the key nodes of NIPC, several surrogate models are established based on Latin Hypercube Design (LHD) + Kriging, which further reduces the costs of optimization design. Finally, a new design framework has been established and the optimization design has been made successfully. Under the condition of the machining accuracy unchanged, it reduces the sensitivity of aerodynamic performance to the machining error, and increases its stability.

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Wang, Yongqing, Qi Luo, Haibo Liu, Kuo Liu, and Jiakun Wu. "A Novel Magnetic Source Design for Flexible Fixturing Based on Magnetorheological Fluid." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6580.

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Magnetic source configuration plays an important role in flexible fixturing based on magnetorheological fluid (MRF). In this article, a novel magnetic source connected to spindle of machine tool is designed to generate specific magnetic field in machining region. The magnetic field can follow machining trajectory in real time, solidifying magnetorheological fluid under current machining region and constituting a mirror support to axial milling force. The magnetic field makes magnetorheological fluid work in squeeze mode, thus providing a stronger supporting capability under the same magnetic field. The magnetic source has self-cooling function, permitting a very strong coil current throughout the whole machining process. Compared with other magnetic sources used in magnetorheological fixturing, magnetic source researched in this paper is more universal and economical.

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Joslin, Andrew, Manuel Hernandez, Erick Deane, Schadrick Collins, Chengying Xu, and Don F. Wilson. "Experimental Setup for Multi-Sensor Fusion and Data Correlation Analysis During CNC Steel Turning Process." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34308.

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This paper discusses a preliminary setup for an ongoing research project with goals of off-line modeling and optimization for a CNC turning process of AISI 4137 steel alloy; followed by online monitoring, optimization, and control of the machining process. A full factorial Design Of Experiment (DOE) of three machining parameter factors was created in Minitab™ and Analysis of Variance was performed, in order to determine which parameters influenced the machining process the most. Accelerometers, acoustic emission sensors and force sensors have given researchers insights into the relationships between mechanical vibration and tool condition during the turning process. Similarly, correlations have been recognized between electrical power consumption, machining forces, tool temperature, and tool condition. While monitoring the machining process with sophisticated force and acceleration sensors is effective, implementation in a large scale factory environment may not be an economical solution to online monitoring and control. Finding an ideal combination of sensors capable of monitoring significant factors that affect the CNC steel turning process will allow process optimization and reduce the cost of machining.

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HERRMANN, P. "Modification of the surface integrity of powder metallurgically produced S390 via deep rolling." In Material Forming. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902479-108.

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Abstract. Fine blanking is an economical process for manufacturing sheet metal workpieces with high sheared surface quality. When machining high-strength steels, material fatigue leads to increased punch wear, which reduces the economic efficiency of the process. This fatigue of the cutting edge and lateral punch surface can be counteracted by mechanical surface treatments. Deep rolling has proved particularly useful for such surface modification, as it allows both: machining of the lateral punch surface and the application of the cutting edge rounding required for fine blanking. For the precise design of the fine blanking punch contour especially the macroscopic deformation of the workpiece is decisive. In this paper, the possibility of specifically modifying the surface integrity of hardened and powder metallurgically produced S390 by means of the incremental surface treatment process deep rolling is investigated. By varying the decisive process parameters rolling pressure, ball diameter and step over distance, their influence on surface integrity is determined. The surface integrity is afterwards characterized by macro hardness, surface topography and residual stress state and microstructural images.

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Reports on the topic "ECONOMICAL MACHINING"

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Ehlen, Mark A. Economic impacts of flow-control machining technologies :. Gaithersburg, MD: National Institute of Standards and Technology, 1999. http://dx.doi.org/10.6028/nist.ir.6373.

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