The effect of welding parameters on fracture toughness of resistance spot-welded galvanized DP600 automotive steel sheets

2011 ◽  
Vol 58 (9-12) ◽  
pp. 1043-1050 ◽  
Author(s):  
Fatih Hayat ◽  
İbrahim Sevim
Keyword(s):  
Fracture Toughness ◽  
Welding Parameters ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Automotive Steel ◽  
Spot Welded

Analysis of Welds Made by Delta Spot Method

2015 ◽  
Vol 818 ◽  
pp. 229-232
Author(s):  
Ján Viňáš ◽  
Luboš Kaščák
Keyword(s):  
Spot Welding ◽  
Welded Joint ◽  
Galvanized Steel ◽  
Metallographic Analysis ◽  
Welding Parameters ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Resistance Spot Welds ◽  
Welding Processes

Resistance spot welding has been widely used in sheet fabrication for several decades. Development of new materials leads to innovation of welding processes. The paper describes the principle of innovative welding method known as Delta Spot and evaluates the properties of Delta Spot joints made by combination of galvanized steel sheets H220PD (a0 = 0.9 mm) and TRIP 40/70+Z100MBO (a0 = 0.77 mm). The quality of welded joints was evaluated by tensile test and metallographic analysis. The influence of the welding parameters on the structure of welded joint was observed too. The properties of Delta Spot joint were compared to the properties of standard resistance spot welds.

The effect of martensitic transformation on residual stress in resistance spot welded high-strength steel sheets

2013 ◽  
Vol 577 ◽  
pp. S684-S689 ◽  
Author(s):  
Muneyoshi Iyota ◽  
Yoshiki Mikami ◽  
Tadafumi Hashimoto ◽  
Koichi Taniguchi ◽  
Rinsei Ikeda ◽  
...  
Keyword(s):  
Residual Stress ◽  
Martensitic Transformation ◽  
High Strength Steel ◽  
High Strength ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Spot Welded
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