Effects of laser beam welding parameters on mechanical properties and microstructure of AZ31B magnesium alloy

2011 ◽  
Vol 21 (9) ◽  
pp. 1917-1924 ◽  
Author(s):  
G. PADMANABAN ◽  
V. BALASUBRAMANIAN
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
Welding Parameters ◽  
Az31b Magnesium Alloy

Joining of Aluminium Structures with Aluminium Foams

1998 ◽  
Vol 521 ◽  
Author(s):  
J. Burzer ◽  
T. Bernard ◽  
H. W. Bergmann
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Tensile Test ◽  
Laser Beam Welding ◽  
Welding Parameters ◽  
Transportation Industry ◽  
Absorption Properties ◽  
Testing Method ◽  
New Construction ◽  
Joining Process

ABSTRACTThe aim of this work is the evaluation of new construction elements for applications in transportation industry which are based on new designs incorporating commonly applied aluminium structures and aluminium foams. The work includes the characterisation of the joining process, the joining mechanism and the mechanical properties of the joining zone. A testing method for the joints is developed which is based on a common tensile test in order to evaluate the influence of the main laser welding parameters on the toughness of the joints and to afford a comparison between laser beam welding and gluing process. The analysis of the joining mechanism is investigated with the help of metallographic studies. In addition, the energy absorption properties of aluminium hollows filled and joined with foam structures are characterised.

Studies on Microstructure and Mechanical Properties of GTAW, Laser and Friction Stir Welded ZM21 Magnesium Alloy

2015 ◽  
Vol 787 ◽  
pp. 475-479
Author(s):  
K.L. Hari Krishna ◽  
S.R. Koteswara Rao ◽  
V.V. Subba Rao
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Laser Beam ◽  
Tensile Properties ◽  
Laser Beam Welding ◽  
Friction Stir ◽  
Gas Tungsten Arc ◽  
Microstructure And Mechanical Properties ◽  
Gas Tungsten ◽  
Zm21 Magnesium Alloy

Present work pertains to welding of ZM21 magnesium alloy using three different welding techniques namely Gas Tungsten Arc Welding, Laser Beam Welding and Friction Stir Welding. After careful trial and error method, the process parameters were identified to produce defect free, full penetration welds successfully. The microstructure and mechanical properties of ZM21 magnesium alloy using GTAW, LBW and FSW processes were analyzed by optical microscopy, tensile testing and Vickers micro hardness measurements. The results show that the tensile properties of Friction stir welds and Laser beam welds are much better than those of gas tungsten arc welds. The formation of very fine grains in the friction stir welded region and absence of HAZ in LBW are found to be main reasons for better tensile properties. It has been concluded that the ZM21 magnesium alloy exhibits good weldability in all the three welding processes and laser beam welding process offers higher joint efficiency when compared with GTAW and FSW.

Influence of Hot-Extrusion on Mechanical Properties of AZ31B Magnesium Alloy Sheet

2005 ◽  
Vol 15 (1) ◽  
pp. 25-30
Author(s):  
Yong-Gil Kim ◽  
Hak-Kyu Choi ◽  
Min-Cheol Kang ◽  
Hae-Yong Jeong ◽  
Cha-Hurn Bae
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Hot Extrusion ◽  
Alloy Sheet ◽  
Az31b Magnesium Alloy ◽  
Magnesium Alloy Sheet ◽  
Az31b Magnesium Alloy Sheet
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