tailieunhanh - Optimization of Machining Parameters in EDM process using Cast and Sintered Copper Electrodes

(BQ) In this research work two different materials have been used as work pieces. These EN8 and D3 steel materials have been machined in an Electrical discharge machine which has wide application in Industry fields. The important process parameters that have been selected are peak current, pulse on time, die electric pressure and tool diameter. The outputs responses are material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR). | Available online at ScienceDirect Procedia Materials Science 6 (2014) 1292 – 1302 3rd International Conference on Materials Processing and Characterisation (ICMPC 2014) Optimization of Machining Parameters in EDM process using Cast and Sintered Copper Electrodes P. Balasubramaniana, T. Senthilvelanb a Associate professor, Department of Mechanical Engineering, Bharathiyar College of Engineering and TechnologyKaraikal-609 (UT) - India. b Professor, Department of Mechanical Engineering, Pondicherry Engineering College- Puducherry- 605014. Puducherry (UT) - India. Abstract toi uu khong ro rang materials In this research work two different materials have been used as work pieces. These EN8 and D3 steel materials have been machined in an Electrical discharge machine which has wide application in Industry fields. The important process parameters that have been selected are peak current, pulse on time, die electric pressure and tool diameter. The outputs responses are material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR). The Cast Copper and Sintered Powder Metallurgy Copper (P/M Copper) have been considered as tool electrodes to machine the fore said work pieces. Response surface methodology(RSM) has been used to analyze the parameters and analysis of variance (ANOVA) has been applied to identify the significant process parameters. The influences of interaction of parameters have also been studied. Scanned electron microscope(SEM) images have been taken after machining on the work pieces for both electrodes to study the structure property correlation. The input parameters were optimized in order to obtain maximum MRR, minimum TWR and minimum SR. © 2014 Elsevier Ltd. This is an open access article under the CC BY-NC-ND license © 2014 The Authors. Published by Elsevier Ltd. (). Selection and peer-review under responsibility of the Gokaraju Rangaraju Institute