A Comparative Study on Laser Welded Joints: Mechanical and Metallurgical Aspects

2007 ◽  
pp. 815-816
Author(s):  
E. Bayraktar ◽  
D. Kaplan ◽  
B. S. Yilbas
Keyword(s):  
Comparative Study ◽  
Welded Joints

Comparative study of different welding wires on T92 welded joints

2018 ◽  
Vol 98 (4) ◽  
pp. 133-138
Author(s):  
Xin Zhang ◽  
Yanchang Qi
Keyword(s):  
Comparative Study ◽  
Welded Joints

scholarly journals Comparative Study on Welding Characteristics of Laser-CMT and Plasma-CMT Hybrid Welded AA6082-T6 Aluminum Alloy Butt Joints

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3300 ◽  
Author(s):  
Zhibin Xin ◽  
Zhibin Yang ◽  
Han Zhao ◽  
Yuxin Chen
Keyword(s):  
Aluminum Alloy ◽  
Comparative Study ◽  
Welded Joints ◽  
High Speed ◽  
Shear Fracture ◽  
Welding Process ◽  
Hybrid Welding ◽  
Micro Hardness ◽  
Butt Joints ◽  
Promising Alternative

Laser-CMT (Cold Metal Transfer) and plasma-CMT hybrid welding are two promising alternative joining technologies for traditional Metal-Inert-Gas (MIG) welding of the aluminum alloy joints in the high speed trains manufacturing industry. In this work, a comparative study on the weld formation, microstructure, micro-hardness, and mechanical properties of the butt joints in the two welding methods was conducted. The results indicate that the overall quality of the laser-CMT and plasma-CMT welds were good, especially of the laser-CMT hybrid weld, and the laser-CMT hybrid welding process needed a lower heat input. The width of the partially melted zone of the laser-CMT hybrid weld was narrower than that in the plasma-CMT hybrid weld. Micro-hardness test results show that two distinct softening regions were identified in the heat affected zone, and the micro-hardness values of each zone in the laser-CMT hybrid weld were lower than that in the plasma-CMT hybrid weld. The tensile strength of the laser-CMT hybrid welded joints was higher than that of the plasma-CMT hybrid welded joints, which could reach up to 79.4% and 73.7% of the base materials, respectively. All the fractures occurred in the softening region and exhibited a ductile shear fracture with a shear angle of approximately 45°. The fractographs manifested that the laser-CMT and plasma-CMT hybrid welded joints presented ductile fracture and ductile-brittle fracture features, respectively.

Comparative Study of Weld Characteristics of Friction Stir Welded Joints on Aluminium 7075 with Autogenous TIG

2020 ◽  
Vol 22 ◽  
pp. 2532-2538
Author(s):  
Utkarsh Dwivedi ◽  
Sidharth Tiwari ◽  
Asutosh Mishra ◽  
Sreethul Das
Keyword(s):  
Comparative Study ◽  
Welded Joints ◽  
Friction Stir

Mechanical Properties of NiTi Shape Memory Alloys Welded Joints: A Comparative Study between the GTAW, PAW and LBW Processes

2018 ◽  
Vol 930 ◽  
pp. 526-531
Author(s):  
Raphael Henrique Falcão de Melo ◽  
Matheus José Cunha de Oliveira ◽  
Pedro Ítalo Vidal de Oliveira ◽  
Milton Sérgio Fernandes de Lima ◽  
Theophilo Moura Maciel ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Comparative Study ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Welded Joints ◽  
Niti Shape Memory Alloys

scholarly journals Comparative study of multiaxial fatigue methods applied to welded joints in marine structures

2016 ◽  
Vol 10 (37) ◽  
pp. 173-192 ◽  
Author(s):  
P.S. van Lieshout ◽  
J.H. den Besten ◽  
M.L. Kaminski
Keyword(s):  
Comparative Study ◽  
Welded Joints ◽  
Multiaxial Fatigue ◽  
Marine Structures
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