Results 121 to 130 of about 4,145 (171)

Effect of vapor/plasma-liquid flow behavior on the keyhole oscillation in laser-MIG hybrid welding of Invar alloy

, 2021
A coupled heat transfer-fluid flow-model is implemented to simulate the laser melt inert gas (MIG) hybrid welding (LMHW) for Invar alloy. The temperature profile and materials flow during the LMHW process are monitored and verified according to the ...
Qiyu Gao, Tingyan Yan, Wanli Ling, H. Bu, X. Zhan, Honglie Shen   +5 more
semanticscholar   +1 more source

Modeling of transport phenomena in hybrid laser-MIG keyhole welding

International Journal of Heat and Mass Transfer, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhou, J., Tsai, H. L.
openaire   +2 more sources

Study of phenomenon of fibre-laser-MIG/MAG-hybrid-welding

ICALEO 2008: 27th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2008
The laser hybrid welding processes have quite a few successful applications already in use for example in automotive, ship building and construction industry. The current development steps of high power lasers using optical fiber for beam transportation are widened the applicability of laser hybrid welding ever more and also to thick section welding.
Heidi Piili, Antti Salminen, Petri Harkko, Janne Lehtinen   +3 more
openaire   +1 more source

Laser-MIG hybrid welding of aluminium alloy extrusions for high-speed trains: effects of gap width on microstructure and properties

Welding International, 2023
6A01-T5 aluminum alloy extrusions with a thickness of 4.5 mm were welded by laser-MIG hybrid welding, and the effects of gap width on the microstructure and properties were studied in details.
Xiaohui Han, Zhibin Yang, Yin Ma, Zhendong Mao, G. Ma   +4 more
semanticscholar   +1 more source

Hybrid laser-MIG welding of aluminum alloys: The influence of shielding gases

Applied Surface Science, 2009
Abstract In this paper, laser-GMAW hybrid welding technologies of light metals are investigated by focusing particularly on shielding gas related problems such as distribution on the welding zone, mixtures and flow. In particular, a Computational Fluid Dynamics (CFD) software was used with the aim to investigate the effect on gas distribution and ...
CAMPANA, GIAMPAOLO, ASCARI, ALESSANDRO, FORTUNATO, ALESSANDRO, TANI, GIOVANNI   +3 more
openaire   +1 more source

The Deformation Simulation of the Laser-MIG Hybrid Welding in Fillet-Welded Joint

Applied Mechanics and Materials, 2011
The numerical simulation of the fillet-welded joint which is welded with the four kind of clamped methods by laser-MIG hybrid welding is researched by the SYSWELD software. The results of the numerical simulation are compared with the results of the experienced welding.
You Qi Wang, Bing Tan, Bing Ma, Zhi Hua Ma   +3 more
openaire   +1 more source

Investigation of mixing phenomena in hybrid laser-MIG keyhole welding

ICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication, 2004
In laser keyhole welding of alloys, low melting-point elements, such as aluminum or magnesium, can be easily vaporized and lost from the weld region, leading to the changes of composition, mechanical properties, and the susceptibility of hard cracking and other defects.
Jun Zhou, Hai-Lung Tsai, Pei-Chung Wang
openaire   +1 more source

Comparison between hybrid laser-MIG welding and MIG welding for the invar36 alloy

Optics & Laser Technology, 2016
Abstract The invar36 alloy is suitable to produce mold of composite materials structure because it has similar thermal expansion coefficient with composite materials. In the present paper, the MIG welding and laser-MIG hybrid welding methods are compared to get the more appropriate method to overcome the poor weldability of invar36 alloy.
Xiaohong Zhan, Yubo Li, Wenmin Ou, Fengyi Yu, Jie Chen, Yanhong Wei   +5 more
openaire   +1 more source

The influences of Ar-He shielding gas mixture on welding characteristics of fiber laser-MIG hybrid welding of aluminum alloy

Optics and Laser Technology, 2019
During laser or laser-arc hybrid welding process of aluminum alloy, laser power waste and keyhole fluctuation are drastic due to the shielding effect of dense plasma.
C. Cai, Shuang He, Hui Chen, Weihua Zhang   +3 more
semanticscholar   +1 more source

Penetration and welding phenomena in YAG laser-mig hybrid welding of aluminum alloy

ICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication, 2004
Hybrid welding combining YAG laser and MIG arc was carried out on aluminum alloy, and the effects of various welding conditions were investigated. The optimum distances between the laser-focused point and the MIG wire target for deeper penetration were found to be about 2 to 4mm depending upon the MIG current of 60 to 240 A.
Satoru Uchiumi, Jing-bo Wang, Seiji Katayama, Masami Mizutani, Toshinori Hongu, Kouji Fujii   +5 more
openaire   +1 more source