02206nam a2200265 a 4500 vtls000045682 KUKTEM 20251114204427.0 100511t2009 my ao f m 000 0 eng d THE0006574(Local) 201905161022 amirul 201107132318 VLOAD 201005121045 ida 201005120749 ida 201005111707 ida UMP TJ1191 .F57 2009 rs Bc. Mohd Firdaus Mat Refin Prediction of surface roughness in wire electric discharge machining of copper alloy based on experimental result / Mohd Firdaus Bin Mat Refin Prediction of surface roughness in wire electric discharge machining of copper alloy based on experimental result [electronic resource] Kuantan, Pahang : UMP, 2009 xvi, 62 p. : ill. (some col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of Mechanical Engineering with Manufacturing Engineering) -- Universiti Malaysia Pahang - 2009 Bibliography : p. 51-54 This paper produces the mathematical model for the prediction of surface roughness in Wire-EDM for copper alloy C22000. Response Surface Methodology (RSM) have been used as the Design of Experiment (DOE). The workpiece were cut using the Wire-EDM and then measure the surface roughness using Perthometer. By using Minitab software, two mathematical models have been produce, linear and quadratic model. Both models were comparing to find the most accurate model. From the selected parameters, on time and peak discharges current are significant to the surface roughness. By using Analysis of Variance (ANOVA) the lack-of-fit P-value have been compared and the second or quadratic mathematical model were selected since it have less percent of error compare to linear model. By doing the prediction for surface roughness in Wire-EDM for copper alloy C22000 it will aid people to estimate the surface roughness for their selected parameters and avoid using try and error method. Electric metal-cutting Machining 0 0 0 1 20000 20000 2019-09-04 0 TJ1191 .F57 2009 rs Bc. 0000044385 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 4216 | TJ1191 .F57 2009 rs Bc. 0000044386 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1839 1845 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*9992