20.500.12556/RUL-133579 Performance study of EDM process parameters using TiC/ZrSiO [sub] 4 particulate-reinforced copper composite electrode Študija zmogljivosti procesa EDM z elektrodo iz kompozita bakra in ojačitvenih delcev TiC/ZrSiO [sub] 4 Electrical discharge machines (EDM) are widely employed in machining components containing complex profiles of hard-to-cut and machining materials. However, the fabrication-of-tool time for the EDM process is excessively high in the traditional machining method, which significantly affects the machining rate. Therefore, in this paper, a powder metallurgy (PM) technique is employed to fabricate the tool electrode using copper (Cu), titanium carbide (TiC), and zirconium silicate (ZrSiO4) for different combinations. An L18 orthogonal array (OA) is planned using the following input parameters: three types of tools (Cu, Cu90, Cu80), peak current (PC) [A], pulse on time (PT) [µs], and gap voltage (GV) [V]. The performance of EDM is evaluated through the material removal rate (MRR), tool wear rate (TWR), and surface roughness (SR). The process parameters are optimized using two different techniques: the technique for order of preference by similarity to the ideal solution (TOPSIS) and grey relational analysis (GRA). TOPSIS and GRA optimization techniques produce the same optimal parametric solution for less TWR, SR, and higher MRR with the combination of the Cu90 tool, E8 APC, 15 µs pulse PT, and 75 V GV. Based on the ANOVA table of TOPSIS, pulse on time plays a major role, contributing 46.8 % of the machining performance; peak current shows the most significant contribution of 39.3 % of the machining performance using GRA values. Furthermore, the scanning electron microscope (SEM) image analyses are carried out on the machined workpiece surface to understand the effect of tools on machining quality. powder metallurgy composite tool copper electrical discharge machine technique for order of preference by similarity to ideal solution grey relational analysis prašna metalurgija kompozitno orodje baker EDM TOPSIS GRA true false true Angleški jezik Slovenski jezik Članek v reviji 2021-12-02 08:53:18 2021-12-02 08:53:23 2022-09-13 03:51:29 0000-00-00 00:00:00 2021 0 0 Str. 547-556 no. 11 Vol. 67 Nov. 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.9.048:669.3 0039-2480 10.5545/sv-jme.2021.7254 87277827 RAZ_Saminatharaja_Duraisivam_2021.pdf RAZ_Saminatharaja_Duraisivam_2021.pdf 1 474F90406855628DF3AFE122F2C6BEB5 af8c812e4d319b12370205448cadba5f7c869eb5a7fdeff4f2af6e3906d1a737 fc97ed69-5345-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151708 https://www.sv-jme.eu/sl/article/performance-study-of-edm-process-parameters-using-tic-zrsio4-particulates-reinforced-copper-composite-electrode/ 1 d539ed4f-5344-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151703 Fakulteta za strojništvo Strojniški vestnik 0 0 0