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Optimization of electrical discharge machining process parameters for Al6061/cenosphere composite using grey-based hybrid approach

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Transactions of Nonferrous Metals Society of China 2017年第5期27卷 998-1010页

作者： A. DEY S. DEBNATH K. M. PANDEY Department of Mechanical Engineering National Institute of Technology Silchar Assam 788010 India Department of Production Engineering National Institute of Technology Agartala Tripura 799055 India

Fly ash has congregated considerable attention as a potential reinforcement for aluminum matrix composites(AMCs)to enhance selective properties and reduce the cost of ***,poor machinability of such AMCs limits their *** present study focuses on the preparation of cenosphere fly ash reinforced Al6061alloys by compo casting method.X-ray diffraction analysis of the prepared AMCs exposes the presence of cenosphere particles without any formation of other intermetallic *** this study,electrical discharge machining(EDM)was engaged to examine the machinability of the prepared metal matrix composite(MMCs).The measured performance characteristics for the various combinations of input process parameters were considered to be MRR,EWR and *** centered central composite design(CCD)of response surface method(RSM)was employed to design the number of experimental trials required and a hybrid approach of grey-based response surface methodology(GRSM)was imposed for predicting the optimal combination of processing parameter in EDM *** improvement was observed in the performance characteristics obtained by employing both the optimal setting of machining *** optical3D surface profile graphs of the ED machined surface also revealed the improvement in surface quality and texture employing the optimal processing conditions proposed by hybrid GRSM approach.

关键词： compo casting electrical discharge machining response surface method grey-based response surface methodology analysis of variance desirability analysis

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analysis and optimization of sustainable machining of AISI O1 tool steel by the wire-EDM process

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Advances in Manufacturing 2021年第2期9卷 304-317页

作者： Carmita Camposeco-Negrete School of Engineering and Science Tecnologico de MonterreyEduardo Monroy Cárdenas 200050110 TolucaEstado de MéxicoMexico

Wire electrical discharge machining(wire-EDM)is an energy-intensive process,and its success relies on a correct selection of cutting *** is vital to optimize energy consumption,along with productivity and *** experimental study optimized three parameters in wire-EDM:pulse-on time,servo voltage,and voltage concerning machining time,electric power,total energy consumption,surface roughness,and material removal *** different plate thicknesses(15.88 mm and 25.4 mm)were *** orthogonal array,signal-to-noise ratio,and means graphs,and an analysis of vari-ance(ANOVA),determine the effects and contribution of cutting parameters on ***-on time is the most significant factor for almost all variables,with a percentage of contribution higher than 50%.Multi-objective optimization is conducted to accomplish a concurrent decrease in all variables.A case study is proposed to compute carbon dioxide(CO_(2))tons and electricity cost in wire-EDM,using cutting parameters from multi-objective optimization and starting values commonly employed to cut that tool steel.A sustainable manufacturing approach reduced 5.91%of the electricity cost and CO_(2)tons when machining the thin plate,and these responses were diminished by 14.09%for the thicker ***,it is possible to enhance the sustainability of the process without decreasing its productivity and quality.

关键词： Wire electrical discharge machining(wire-EDM) Optimization Taguchi desirability analysis Sustainability

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