Development of electrode for optimization of process parameters of EDM using carpenter hymu 80 alloys

• Main Authors: Tewari, U. S., Singh, Rajnish, Kumar, Ambuj
• Format: Conference Proceeding
• Language: English
• Subjects: Algorithms; EDM electrodes; Electric discharge machining; Electrode materials; Electrodes; Material removal rate (machining); Nickel base alloys; Process parameters; Surface finish; Surface roughness; Wear rate
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0229756

The present study was focused on the problem of machining carpenter hymu 80 alloys. The Carpenter hymu 80 material is very difficult to machine using the conventional method. Electro-discharge machining was used for the machining process. The effect of machining through the electro-discharge method was reflected in the material removal rate relevant to the production rate. The quality of the material after machining is signified by the quality of the surface produced. Out of these effects, the tool’s wear was also prominent for a higher production rate. The electrode material was also taken into consideration for the machining method. The present study focused on selecting input parameters that are more relevant to the high production rate and desired finish. The three input variables selected were electrode gap, current, and electrode material. The electrode materials addressed the problem of surface finish. The development of new electrode material was very prominent in this study. The input parameters were selected in the three levels for the ease of optimisation algorithm. The electrode materials were copper, graphite, and sparkle material. The three-level discharge currents were 8A, 12A, and 16A. The electrode gap was 100, 200, and 300 microns. The input variables were analysed using Minitab software to optimise the effect of input variables on the output parameters. The electrode material influenced the MRR, TWR and surface roughness.