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020 _aTHE0005895(Local)
039 9 _a201905141203
_baida
_c201411051245
_dsafura
_y201410141147
_zFida
040 _aUMP
090 _aTA465 .N87 2013 r Bc.
100 0 _aMohd Nur Syaffiq Mahmood
245 1 0 _aStrength investigation on resistance spot welding of low carbon steel and stainless steel /
_cMohd Nur Syaffiq Mahmood
260 _aKuantan, Pahang :
_bUMP,
_c2013
300 _axvi, 69 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper ( Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2013
504 _aBibilography : p. 60-64
520 3 _aResistance spot welding (RSW) had been widely used in automotive industry; because of their advantages easily to process and low cost, high speed and high production, suitability for automation. About 2000-7000 spot welds were used in joining modern vehicles. This project deals with the investigation of failure mode and mechanical properties of weld joint of low galvanized steel and stainless Steel. The main objective of this project is strength investigation using RSW of low carbon steel and stainless steel. For design of experiment, Taguchi method was employed by using Minitab software, and total nine sets experiment with 3 type of parameter (current, squeeze time, pressure) were conducted. The studies of mechanical properties, are consists of various tests; Tensile test, Coach Peel test, Hardness test, microstructure to analyze and investigate the weldability of galvanized Steel and stainless Steel sheet. Visual inspection was done to determine the failure mode of the spot welding. As a result, tensile test have larger strength variation than the coach-peel test. Wider width and depth of weld nugget affect the weldability of the welding. Different parameters were obtained for optimum parameter for tensile test and coach peel test by using Taguchi method. Almost pullout failure mode occurs where failure at heat affected zone (HAZ) around the nugget circumference.
650 0 _aSteel
650 0 _aWelding
999 _aVIRTUA40
_c5012
_d5018
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992