02185nam a2200265 a 4500 vtls000040681 KUKTEM 20251114204407.0 090722t2008 my a f m 000 0 eng|d THE0005702(Local) 201905211450 hanafiah 201107132156 VLOAD 200908141650 VLOAD 200908141631 VLOAD 200907221201 ida84 UMP TA405 .Z35 2008 rs Bc. Mohd Zaim Din Experimental study on strength of spot welded / Mohd Zaim Din Experimental study on strength of spot welded [electronic resource] Kuantan, Pahang : UMP, 2008 58 p. : ill. (some col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2008 In this research, the strength on the tensile-shear and coach peel type of welding joints in spot welding of 0.8 mm thicknesses mild steel sheets (JIS C314 SPCC-SD) was investigated. The welding joints were exposed to tensile shear and coach peel using tensile test machine, and the effect of welding time on coach peel strength and tensile shear strength was researched by using related period diagrams. A weld current period and weld time is 3 – 6 kA and 2 – 5 second respectively was selected during the welding process. In this experiment increasing welding times cause high heat input to weld zone and extending weld nugget, so the strength of joints increases mine while excessive heat energy input causes void and crack formations, partially spurt out of molten metal and so, the strength of joint decreases. The optimum parameter for tensile shear type is at 6 ampere (A) current and 4 second welds time (3847 N) and the highest strength for coach peel type is at 6 ampere current and 5 second welds time (889.5N). Finally the comparison result shown the higher strength of orientation using spot welding machine is tensile shear type. Strength of materials Welded joints Electric welding 0 0 0 1 20000 20000 2019-09-04 0 TA405 .Z35 2008 rs Bc. 0000038136 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 3421 | TA405 .Z35 2008 rs Bc. 0000038137 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1263 1269 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*6502*9992