Comparative study on CO2 laser overlap welding and resistance spot welding for automotive body in white

2015 ◽  
Vol 78 ◽  
pp. 107-117 ◽  
Author(s):  
Lifang Mei ◽  
Dongbing Yan ◽  
Genyu Chen ◽  
Dang Xie ◽  
Mingjun Zhang ◽  
...  
Keyword(s):  
Comparative Study ◽  
Co2 Laser ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Resistance Spot ◽  
Automotive Body ◽  
Body In White

Comparative study on CO2 laser overlap welding and resistance spot welding for galvanized steel

2012 ◽  
Vol 40 ◽  
pp. 433-442 ◽  
Author(s):  
Lifang Mei ◽  
Jiming Yi ◽  
Dongbing Yan ◽  
Jinwu Liu ◽  
Genyu Chen
Keyword(s):  
Comparative Study ◽  
Co2 Laser ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Galvanized Steel ◽  
Resistance Spot

A Comparative Study of AC and MFDC Resistance Spot Welding

2004 ◽  
Author(s):  
Wei Li ◽  
Daniel Cerjanec
Keyword(s):  
Comparative Study ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Process ◽  
Welding Current ◽  
Median Frequency ◽  
Resistance Spot ◽  
Secondary Voltage ◽  
Nugget Growth ◽  
Welding Processes

This paper presents a comparative study of the AC and MFDC resistance spot welding process. Two identical welders were used; one with a single phase AC and the other with a median frequency DC weld control. Both welders were instrumented such that the primary and secondary voltage and current could be collected. A nugget growth experiment was conducted to compare the weld size and energy consumption in the AC and MFDC welding processes. It is found that the MFDC process generally produces larger welds with the same welding current. However, this difference is more prominent when the welding current is low. Overall the AC welding process consumes more energy to make a same size weld. The larger the welding current is used, the less efficient the AC process becomes.

scholarly journals A Comparative Study of Weldable Current Range on AC and MFDC Resistance Spot Welding for 440 MPa Grade Steel Sheet

2017 ◽  
Vol 35 (1) ◽  
pp. 34-42 ◽  
Author(s):  
ChangWook Ji ◽  
Chansu Park ◽  
Chiho Kim ◽  
Yongjoon Cho ◽  
Dongjin Oh ◽  
...  
Keyword(s):  
Comparative Study ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Steel Sheet ◽  
Current Range ◽  
Resistance Spot ◽  
Grade Steel
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