02454nam a2200265 a 4500 vtls000052632 KUKTEM 20251114204448.0 110406t2010 my a f m 000 0 eng d THE0006589(Local) 201905161036 amirul 201110041139 Fida 201107140043 VLOAD 201104061046 ida UMP TJ1191 .R34 2010 rs Bc. Abdul Rahim Asas Optimization of electrical discharge machine on mild steel AISI 1020 by using grey relational analysis / Abdul Rahim Asas Optimization of electrical discharge machine on mild steel AISI 1020 by using grey relational analysis [computer file] Kuantan, Pahang : UMP, 2010 xiv, 45 p. : ill. (some col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of Mechanical Engineering with Manufacturing Engineering) -- Universiti Malaysia Pahang - 2010 Bibliography : p. 39-41 This report deals with machining workpiece mild steel AISI 1020 using electrical discharge machining (EDM). The objective of this thesis is to optimize the surface roughness (SR), electrode wear ratio (EWR) and material removal rate (MRR) by using grey relational analysis (GRA) with orthogonal array (OA) and to discuss on the significant result by using analysis of variance (ANOVA). The machining of mild steel AISI 1020 steel workpiece was perform using the EDM machine AQ55L (ATC) and the analysis done using equation for GRA and STATISTICA software for ANOVA. In this study, the machining parameters, namely workpiece polarity, pulse off time, pulse on time, peak current, servo voltage and dielectric fluid are optimized. A grey relational grade obtained from the grey relational analysis is used to solve the EDM process with the multiple performance characteristics. Optimal machining parameters can then be determined by the grey relational grade as the performance index. Based from the result, the most significant parameter that effect the MRR, EWR and SR was the peak current while significant parameter was workpiece polarity. Experimental results have shown that machining performance in the EDM process can be improved effectively through this approach. Electric metal-cutting Surface roughness 0 0 0 1 20000 20000 2019-09-04 0 TJ1191 .R34 2010 rs Bc. 0000054101 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 5066 | TJ1191 .R34 2010 rs Bc. 0000054102 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 2449 2455 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*9992