in this paper, dissimilar resistance spot welding of aisi 1075 eutectoid steel to aisi 201 stainless steel is investigated experimentally. for this purpose, the experiments are designed using response surface methodology and based on four-factor, five-level central composite design. the effects of process parameters such as welding current, welding time, cooling time and electrode force are inv...

Resistance spot welding studies at varying current with an 8 mm electrode on steel grades DP980, DP690, TRIP980 and TRIP780, established that peak strength sound weld could be achieved a range of 9 to 10 kA, where the nugget diameter was between 6.9 7.5 mm. The joint efficiency, measured as hardening ratio highest in TRIP690 2.22 for higher grade it 1.37 1.51. softening HAZ associated tempering...

Third-generation advanced high-strength steels (3G-AHSS) are typically galvanized to prevent corrosion of the outer body structure. However, zinc coating on surface, combined with locally elevated temperatures generated during resistance spot welding (RSW) process, can provide prerequisites for liquid metal embrittlement (LME). This work uses two strategies control LME crack formation: current ...

Resistance spot welding (RSW) is one of the most significant and common metal joining methods used in industries. The present paper discusses comparative performance resistance electrodes nontraditional design with traditional 8 mm contact diameter a 1.5 thick low carbon steel sheet automobile structural bodies bridges. modified electrode tip surface center was machined to have three different ...

In this paper, dissimilar resistance spot welding of AISI 1075 eutectoid steel to AISI 201 stainless steel is investigated experimentally. For this purpose, the experiments are designed using response surface methodology and based on four-factor, five-level central composite design. The effects of process parameters such as welding current, welding time, cooling time and electrode force are inv...