Weldability of thin sheet metals by small-scale resistance spot welding using high-frequency inverter and capacitor-discharge power supplies

2001 ◽  
Vol 30 (8) ◽  
pp. 1012-1020 ◽  
Author(s):  
Y. Zhou ◽  
S. J. Dong ◽  
K. J. Ely
Keyword(s):  
Resistance Spot Welding ◽  
High Frequency ◽  
Spot Welding ◽  
Thin Sheet ◽  
Power Supplies ◽  
Small Scale ◽  
Sheet Metals ◽  
Capacitor Discharge ◽  
Scale Resistance ◽  
Frequency Inverter

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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