scholarly journals On the use of a fictitious notch radius equal to 0.3 mm to design against fatigue welded joints made of wrought magnesium alloy AZ31

2020 ◽  
Vol 139 ◽  
pp. 105747 ◽  
Author(s):  
Özler Karakaş ◽  
Jörg Baumgartner ◽  
Luca Susmel
Keyword(s):  
Magnesium Alloy ◽  
Welded Joints ◽  
Notch Radius ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Wrought Magnesium Alloy

A Parametric Study on Laser Welding of Magnesium Alloy AZ31 by a Fiber Laser

2014 ◽  
Author(s):  
Neil S. Bailey ◽  
Wenda Tan ◽  
Yung C. Shin
Keyword(s):  
Magnesium Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
Welding Speed ◽  
Laser Power ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Wrought Magnesium Alloy ◽  
Weld Pool Geometry ◽  
Good Agreement

Laser welding of wrought magnesium alloy has been investigated through experimentation and simulation. Laser butt welds and laser lap welds were performed on 2.0 mm thick magnesium alloy AZ31 plates using a 1 kW fiber laser and shielded with argon gas. The effects of laser power and welding speed on weld geometry and microstructure were investigated. Through experimentation, the ranges of operating parameters for laser power and welding speed which resulted in viable, defect-free welds were found and reported. Simulations were carried out to predict the weld pool geometry and resultant microstructure and are shown to be in good agreement with experimental results.

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