Results 131 to 140 of about 2,759,057 (174)

Laser-MIG Hybrid Welding of Aluminium Alloys

Welding in the World, 2006
High-power laser welding is expected to achieve much higher productivity than conventional joining techniques. However, the gap tolerance of laser welding is smaller than that of conventional MIG welding because of its high concentrated energy input.
K. Shibata, H. Sakamoto, T. Iwase
openaire   +1 more source

The influence of arc transfer mode in hybrid laser-mig welding

Journal of Materials Processing Technology, 2007
Abstract In the recently developed welding process, a Laser beam and an electric arc are coupled in order to combine the positive aspects of each technology: high speed, low thermal load and high seam depth, all typical features of the Laser; low cost and ability to withstand poor edge preparation, typical of GMAW arc welding.
CAMPANA, GIAMPAOLO, FORTUNATO, ALESSANDRO, ASCARI, ALESSANDRO, TANI, GIOVANNI, TOMESANI, LUCA   +4 more
openaire   +2 more sources

Modeling of hybrid laser-MIG keyhole welding process

ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication, 2003
Recently, hybrid laser-MIG welding technology has increasingly attracted interest in both industry and academia. By combining the two welding processes, it can modify the weld bead shape including the elimination of undercut, change the weld compositions, reduce the porosity, improve welding bridgeability, decrease the susceptibility of hot cracking ...
J. Zhou, H. L. Tsai, P. C. Wang, R. J. Menassa, S. P. Marin   +4 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
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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

Numerical simulation and testing of laser-MIG hybrid-welding angle-structure sheets

Applied Optics, 2023
Numerical simulation and experimental investigation of laser-MIG hybrid angle-welding low-carbon 1.5-mm-thin SPCC steel sheets are presented in this work. The transient simulation analysis provides an access to the thermal-fluid phenomena prediction by employing a hybrid three-dimensional heat source model. Special attention is paid to the melt dynamic
C Y, Cui, L, Chen, J, Yang, H H, Xu, W L, Zhang, X G, Cui, J Z, Lu   +6 more
openaire   +2 more sources

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
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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

Numerical simulation of droplet shapes in laser-MIG hybrid welding

Optics & Laser Technology, 2017
Abstract A three-dimensional finite element model based on minimum energy principle is developed to simulate the droplet transfer process in laser-MIG hybrid welding. The energy manifestations of all forces that determine droplet shapes are considered in this model, and the model has been used to predict droplet shapes. Offset of droplet centroid and
Zhenglong Lei, Longchang Ni, Bingwei Li, Kezhao Zhang   +3 more
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Study of laser MIG hybrid welded AZ31 magnesium alloy

Science and Technology of Welding and Joining, 2009
The laser metal inert gas (MIG) hybrid welded AZ31 magnesium alloy is discussed in weld shape, microstructure characteristics and mechanical properties in comparison of single laser and arc welding. The stable MIG arc, reliable droplet transfer and regular weld that are hardly obtained in single MIG welding can be obtained in hybrid welding by laser ...
M. Gao, X. Y. Zeng, B. Tan, J. C. Feng
openaire   +1 more source