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008 090722t2008 my a f m 000 0 eng|d
020 _aTHE0005702(Local)
039 9 _a201905211450
_bhanafiah
_c201107132156
_dVLOAD
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_dVLOAD
_c200908141631
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_zida84
040 _aUMP
090 _aTA405 .Z35 2008 rs Bc.
100 0 _aMohd Zaim Din
245 1 0 _aExperimental study on strength of spot welded /
_cMohd Zaim Din
246 3 _aExperimental study on strength of spot welded
_h[electronic resource]
260 _aKuantan, Pahang :
_bUMP,
_c2008
300 _a58 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2008
520 3 _aIn 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.
650 0 _aStrength of materials
650 0 _aWelded joints
650 0 _aElectric welding
999 _aVIRTUA40
_c1263
_d1269
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*6502*9992