Diffusion redistribution of carbon in the austenitic phase of the heat affected zone of a resistance spot welded joint in low carbon steel

2004 ◽  
Vol 18 (6) ◽  
pp. 480-485
Author(s):  
L P Andreeva ◽  
B V Kopaev ◽  
A A Antonov
Keyword(s):  
Carbon Steel ◽  
Heat Affected Zone ◽  
Welded Joint ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Austenitic Phase ◽  
Resistance Spot ◽  
Diffusion Redistribution ◽  
Spot Welded

The Effects of Post-Weld Cold Working Processes on the Fatigue Strength of Low Carbon Steel Resistance Spot Welds

2004 ◽  
Author(s):  
R. Spitsen ◽  
D. Kim ◽  
B. Flinn ◽  
M. Ramulu ◽  
E. T. Easterbrook
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Cold Working ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Spot Welds ◽  
Working Process ◽  
Resistance Spot ◽  
Resistance Spot Welds ◽  
Spot Welded

The investigation on the use of a post-weld cold working process to improve fatigue strength of low carbon steel resistance spot welds is presented. The cold working process generates uniform and consistent large zones of compressive residual stresses in resistance spot-welded low carbon steel structures using a specially designed indentation device. The effect of the indentation process parameters on the mechanical properties of the resistance spot-weld was investigated. Comparisons of the mechanical properties and qualitative results between the as-resistance spot-welded specimens and the post-weld cold worked resistance spot-welded specimens have been made in this investigation. Fatigue testing was also conducted to evaluate the effect of post-weld cold working process on the fatigue characteristics of resistance spot welds. Preliminary results showed that a significant improvement in the fatigue endurance limit has been achieved through the post-weld cold working process.

The Effects of Post-Weld Cold Working Processes on the Fatigue Strength of Low Carbon Steel Resistance Spot Welds

2005 ◽  
Vol 127 (4) ◽  
pp. 718-723 ◽  
Author(s):  
R. Spitsen ◽  
D. Kim ◽  
B. Flinn ◽  
M. Ramulu ◽  
E. T. Easterbrook
Keyword(s):  
Fatigue Strength ◽  
Carbon Steel ◽  
Cold Working ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Spot Welds ◽  
Working Process ◽  
Resistance Spot ◽  
Resistance Spot Welds ◽  
Spot Welded

The investigation on the use of a post-weld cold working process to improve fatigue strength of low carbon steel resistance spot welds is presented. The cold working process generates uniform and consistent large zones of compressive residual stresses in resistance spot-welded low carbon steel structures using a specially designed indentation device. The effect of the indentation process parameters on the mechanical properties of the resistance spot weld was investigated. Comparisons of the mechanical properties and qualitative results between the as-resistance spot-welded specimens and the post-weld cold worked resistance spot-welded specimens have been made in this investigation. Fatigue testing was also conducted to evaluate the effect of post-weld cold working process on the fatigue characteristics of resistance spot welds. Results showed that a significant improvement in the fatigue strength has been achieved through the post-weld cold working process.

Mechanical performance of three thickness resistance spot welded low carbon steel

2011 ◽  
Vol 27 (1) ◽  
pp. 219-224 ◽  
Author(s):  
A. Tavasolizadeh ◽  
S. P. H. Marashi ◽  
M. Pouranvari
Keyword(s):  
Carbon Steel ◽  
Mechanical Performance ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Resistance Spot ◽  
Spot Welded
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