Laser welding of Al-Mg alloy with the thin plate

2005 ◽  
Author(s):  
Kai Chen ◽  
Rongshi Xiao ◽  
Tiechuan Zuo ◽  
Quan Ji ◽  
Lingshu Wang
Keyword(s):  
Laser Welding ◽  
Thin Plate ◽  
Mg Alloy

Study of Effect on Tensile Stress Test from Distortion of Fibre Laser Welded Ti6Al4V Using FEA

2011 ◽  
Vol 314-316 ◽  
pp. 1889-1894
Author(s):  
Yu Fan ◽  
Philip Shipway ◽  
Geoff Tansley ◽  
Zheng Chen
Keyword(s):  
Tensile Stress ◽  
Laser Welding ◽  
Tensile Test ◽  
Thin Plate ◽  
Stress Level ◽  
Continuous Wave ◽  
Stress Test ◽  
Welding Distortion ◽  
Fibre Laser

Distortion is one type of defect in the weld, which is troublesome for some reasons, especially in thin plate welding. Distortion was found in fibre laser welding processing for 0.7mm thickness Ti6Al4V plate. The purpose of this paper is to understand and evaluate the effect of distortion on stress level by FEA and tensile test. A group of 0.7mm Ti6Al4V plates welded using continuous wave fibre laser. FEA models were established for fibre laser welded Ti6Al4V in abaqus 6.7.

Melt-pool and keyhole dynamics during thin-plate laser welding of steel

1993 ◽  
Author(s):  
K. Williams ◽  
William O'Neill ◽  
William M. Steen
Keyword(s):  
Laser Welding ◽  
Thin Plate ◽  
Melt Pool ◽  
Keyhole Dynamics

A Study on the Distortion of a Thin Plate Panel by Laser Welding

2007 ◽  
Vol 25 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Choong-Gi Kim ◽  
Jae-Woong Kim ◽  
Ki-Chul Kim
Keyword(s):  
Laser Welding ◽  
Thin Plate

Thermal-Elastic-Plastic Finite Element Analysis for Laser Welding Deformation of Thin Plate

2013 ◽  
Vol 650 ◽  
pp. 572-576 ◽  
Author(s):  
Pan Zeng ◽  
Le Mei ◽  
Li Ping Lei
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Laser Welding ◽  
Thin Plate ◽  
Welding Deformation ◽  
Element Analysis ◽  
Butt Welding ◽  
Material Parameters ◽  
Elastic Plastic ◽  
Simulation And Experiment

Thermal-Elastic-Plastic finite element analysis is introduced to study the deformation of laser welding of thin plate with consideration of varying material parameters. From aspects of numerical simulation and experiment, three welding cases are investigated: (1) the butt welding with constraint clamp, (2) the free bead welding, (3) the bead welding with constraint clamp. At last, the deformation configurations of welding plate under different constraint cases are characterized, and the behaviors of welding deformation are summarized.

Effect of CaO Content on Yb: YAG Disk Laser Weldability of AZ31 Mg Alloy

2014 ◽  
Vol 804 ◽  
pp. 31-34 ◽  
Author(s):  
Min Jung Kang ◽  
Cheol Hee Kim
Keyword(s):  
Mechanical Properties ◽  
Specific Gravity ◽  
Laser Welding ◽  
Oxidation Resistance ◽  
Magnesium Alloys ◽  
Mg Alloys ◽  
Mg Alloy ◽  
Weld Strength ◽  
Shielding Gas ◽  
Az31 Mg Alloy

Magnesium alloys have recently attracted increased attention as structural materials owing to their low specific gravity. However, they must typically be casted, formed, melted, and even heated under a protective shielding gas to prevent them from oxidizing and igniting. So-called “ECO-Mg” alloys have recently been developed by adding CaO to conventional Mg alloys. ECO-Mg alloys exhibit higher oxidation resistance during melting and superior castability, even when beryllium is not added or toxic protective gasses such as SF6are not used. We laser-welded AZ31 Mg alloys with various CaO contents and examined the mechanical properties of the welds. Increasing the CaO content in the AZ31 increased the burning resistance of the ECO-Mg alloys, thereby suppressing plume generation during laser welding; thus the ECO-Mg alloy welds could be fully penetrated faster than conventional Mg alloy welds. The weld strength also increased with increasing CaO content in the AZ31 because the CaO refined the grains.

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