scholarly journals Thermal-mechanical modeling and experimental validation of weld solidification cracking in 6061-T6 aluminum

1997 ◽  
Author(s):  
J.J. Dike ◽  
J.A. Brooks ◽  
D.J. Bammann ◽  
M. Li
Keyword(s):  
Experimental Validation ◽  
Solidification Cracking ◽  
Mechanical Modeling ◽  
Weld Solidification Cracking

scholarly journals Predicting weld solidification cracking using damage mechanics -- LDRD summary report

1997 ◽  
Author(s):  
J.J. Dike ◽  
J.A. Brooks ◽  
D.J. Bammann ◽  
M. Li ◽  
J.S. Krafcik ◽  
...  
Keyword(s):  
Damage Mechanics ◽  
Solidification Cracking ◽  
Summary Report ◽  
Weld Solidification Cracking

Weld Solidification Cracking in Solid-Solution Strengthened Ni-Base Filler Metals

2008 ◽  
pp. 147-170 ◽  
Author(s):  
J.C. Lippold ◽  
J.W. Sowards ◽  
G.M. Murray ◽  
B.T. Alexandrov ◽  
A.J. Ramirez
Keyword(s):  
Solid Solution ◽  
Solidification Cracking ◽  
Weld Solidification Cracking ◽  
Filler Metals

scholarly journals Study of Solidification Cracking Susceptibility during Laser Welding in an Advanced High Strength Automotive Steel

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 673 ◽  
Author(s):  
Gautam Agarwal ◽  
He Gao ◽  
Murugaiyan Amirthalingam ◽  
Marcel Hermans
Keyword(s):  
Laser Welding ◽  
High Strength ◽  
Free Edge ◽  
Processing Parameters ◽  
Solidification Cracking ◽  
Transverse Strain ◽  
Cracking Behavior ◽  
Steel Sheets ◽  
Weld Solidification Cracking ◽  
Automotive Steel

Susceptibility to weld solidification cracking in transformation-induced plasticity steel sheets was studied using a modified standard hot cracking test used in the automotive industry. To vary the amount of self-restraint, bead-on-plate laser welding was carried out on a single-sided clamped specimen at increasing distances from the free edge. Solidification cracking was observed when welding was carried out close to the free edge. With increasing amount of restraint, the crack length showed a decreasing trend, and at a certain distance, no cracking was observed. With the aid of a finite element-based model, dynamic thermal and mechanical conditions that prevail along the transverse direction of the mushy zone are used to explain the cracking susceptibility obtained experimentally. The results indicate that the transverse strain close to the fusion boundary can be used as a criterion to predict the cracking behavior. The outcome of the study shows that optimum processing parameters can be used to weld steels closer to the free edge without solidification cracking.

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