Optimization of pulsed current in resistance spot welding of Zn-coated hot-stamped boron steels

2019 ◽  
Vol 33 (4) ◽  
pp. 1615-1621 ◽  
Author(s):  
Joo Yong Cheon ◽  
Vijeesh Vijayan ◽  
Sivaprasad Murgun ◽  
Yeong Do Park ◽  
Jae Hun Kim ◽  
...  
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Pulsed Current ◽  
Resistance Spot ◽  
Boron Steels

scholarly journals Numerical and Experimental Study of AlSi Coating Effect on Nugget Size Growth in Resistance Spot Welding of Hot-Stamped Boron Steels

2021 ◽  
Vol 5 (1) ◽  
pp. 10
Author(s):  
Ali Afzal ◽  
Mohsen Hamedi ◽  
Chris Valentin Nielsen
Keyword(s):  
Welded Joints ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Focal Point ◽  
The Body ◽  
Weld Nugget ◽  
Boron Steel ◽  
Resistance Spot ◽  
Boron Steels ◽  
Spot Welded

In recent years, increasing automotive safety by improving crashworthiness has been a focal point in the automotive industry, employing high-strength steel such as press hardenable steel (PHS). In addition to the improved strength of individual parts in the body of the vehicle, the strength of the resistance-spot-welded joints of these parts is highly important to obtain a safe structure. In general, dimensions of weld nuggets are regarded as one of the criteria for the quality of spot-welded joints. In the presented research, a three-dimensional axisymmetric finite element model is developed to predict the nugget formation in resistance spot welding (RSW) of two types of PHS: the uncoated and AlSi-coated 1.8 mm boron steel after hot stamping. A fully coupled electro-thermo-mechanical analysis was conducted using the commercial software package Abaqus. The FE predicted weld nugget development is compared with experimental results. The computed weld nugget sizes show good agreement with experimental values.

THERMOMECHANICAL ANALYSIS OF THE RESISTANCE SPOT-WELDING PROCESS

2018 ◽  
Vol 10 (5) ◽  
pp. 449-455 ◽  
Author(s):  
Habib Lebbal ◽  
Lahouari Boukhris ◽  
Habib Berrekia ◽  
Abdelkader Ziadi
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Process ◽  
Thermomechanical Analysis ◽  
Resistance Spot

A Study on the Residual Stresses in Resistance Spot Welding

2015 ◽  
Vol 3 (2) ◽  
pp. 28-32
Author(s):  
Yasser Rihan ◽  
◽  
S. Ayyad ◽  
M.I. Elamy ◽  
◽  
...  
Keyword(s):  
Residual Stresses ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Resistance Spot
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