Micro-laser-GMA hybrid welding – The advancement from macro to micro range

2012 ◽  
Author(s):  
Uwe Reisgen ◽  
Simon Olschok ◽  
Stefan Jakobs ◽  
Michael Mavany
Keyword(s):  
Hybrid Welding

PREDICTION OF GRAIN GROWTH IN HYBRID WELDING HAZ OF TCS STAINLESS STEEL

2013 ◽  
Vol 48 (2) ◽  
pp. 199-204 ◽  
Author(s):  
Zhuanzhuan ZHANG ◽  
Chuansong WU ◽  
Jinqiang Gao
Keyword(s):  
Stainless Steel ◽  
Grain Growth ◽  
Hybrid Welding

scholarly journals Experimental Study on Laser-MIG Hybrid Welding of Thick High-Mn Steel Plate for Cryogenic Tank Production

2021 ◽  
Vol 9 (6) ◽  
pp. 604
Author(s):  
Du-Song Kim ◽  
Hee-Keun Lee ◽  
Woo-Jae Seong ◽  
Kwang-Hyeon Lee ◽  
Hee-Seon Bang
Keyword(s):  
Low Temperature ◽  
Yield Strength ◽  
Steel Plate ◽  
Weld Zone ◽  
Base Material ◽  
Hardness Test ◽  
Steel Plates ◽  
Hybrid Welding ◽  
Temperature Impact ◽  
Mn Steel

The International Maritime Organization has recently updated the ship emission standards to reduce atmospheric contamination. One technique for reducing emissions involves using liquefied natural gas (LNG). The tanks used for the transport and storage of LNG must have very low thermal expansion and high cryogenic toughness. For excellent cryogenic properties, high-Mn steel with a complete austenitic structure is used to design these tanks. We aim to determine the optimum welding conditions for performing Laser-MIG (Metal Inert Gas) hybrid welding through the MIG leading and laser following processes. A welding speed of 100 cm/min was used for welding a 15 mm thick high-Mn steel plate. The welding performance was evaluated through mechanical property tests (tensile and yield strength, low-temperature impact, hardness) of the welded joints after performing the experiment. As a result, it was confirmed that the tensile strength was slightly less than 818.4 MPa, and the yield strength was 30% higher than base material. The low-temperature impact values were equal to or greater than 58 J at all locations in the weld zone. The hardness test confirmed that the hardness did not exceed 292 HV. The results of this study indicate that it is possible to use laser-MIG hybrid welding on thick high-Mn steel plates.

Effects of groove constraint space on plasma characteristics during Laser-MIG hybrid welding of Titanium alloy

2019 ◽  
Vol 48 ◽  
pp. 137-144 ◽  
Author(s):  
Anguo Huang ◽  
Jiajia Zhang ◽  
Chuang Gao ◽  
Renzhi Hu ◽  
Shengyong Pang
Keyword(s):  
Titanium Alloy ◽  
Hybrid Welding ◽  
Plasma Characteristics

scholarly journals Numerical simulation of laser-arc hybrid welding of high strength steel

2020 ◽  
Vol 1676 ◽  
pp. 012162
Author(s):  
ZHANG Fulong ◽  
ZHANG Hong ◽  
LIU Shuangyu ◽  
LIU Fengde
Keyword(s):  
Numerical Simulation ◽  
High Strength Steel ◽  
High Strength ◽  
Hybrid Welding
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