1109 Weldability of Thin Sheet Metals during Small-Scale Resistance Spot Welding using an Alternating-Current Power Supply

2009 ◽  
Vol 2009.47 (0) ◽  
pp. 375-376
Author(s):  
Hideo KAWAHARA ◽  
Tatsuya AKINO
Keyword(s):  
Power Supply ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Thin Sheet ◽  
Alternating Current ◽  
Small Scale ◽  
Sheet Metals ◽  
Resistance Spot ◽  
Scale Resistance

Experimental Investigation on Solid State Resistance Spot Welding

2017 ◽  
Author(s):  
Zhijun Wu ◽  
Guanlin Zhang ◽  
Bingxu Wang ◽  
Kelvin Shih
Keyword(s):  
Solid State ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Mechanical Performance ◽  
Thin Sheet ◽  
Welding Current ◽  
Sheet Metals ◽  
Resistance Spot ◽  
Nugget Formation ◽  
State Resistance

Resistance Spot Welding (RSW) is one of the most common and dominant technologies utilized in the automotive industry to join the thin sheet metals together, and expulsion is a common phenomenon during the operation. How to ensure the high quality nugget formation and joining performance is essential to ensure the quality and integrity of structures. In this study, solid state resistance spot welding is introduced in order to prevent expulsion. The effect of welding current and welding time on the mechanical performance of the solid state RSW in terms of nugget size, tensile performance and nugget formation will be investigated experimentally by using steel sheet metals. Microstructure and micro-hardness of the nugget cross-section will be evaluated as well.

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