Results 111 to 120 of about 4,145 (171)

Microstructure and porosity characteristics of 5A06 aluminum alloy joints using laser-MIG hybrid welding

Journal of Manufacturing Processes, 2018
5A06 aluminum alloy plates with thickness of 6.9mm are welded by KUKA Robot with a fiber laser of IPG YLS-6000. The laser-metal inert gas (MIG) hybrid welding method is adopted to provide high overall productivity in this paper. To investigate the joints
X. Zhan, Yanqiu Zhao, Zemin Liu, Qiyu Gao, H. Bu   +4 more
semanticscholar   +1 more source

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

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

Effect of ultrasonic power on porosity, microstructure, mechanical properties of the aluminum alloy joint by ultrasonic assisted laser-MIG hybrid welding

Optics and Laser Technology, 2019
Ultrasonic assisted laser-MIG (melt inert-gas) hybrid welding is carried out in order to overcome the problems of high porosity, coarse crystal grains and poor mechanical properties of aluminum alloy welded joint. Continuous ultrasonic vibration of 0–200 
Jia Liu, H. Zhu, L. Zhong, Wenfu Cui, Yan Shi   +4 more
semanticscholar   +1 more source

Grain refinement and orientation alternation of 10 mm 316L welds prepared by magnetic field assisted narrow gap laser-MIG hybrid welding

Materials Characterization, 2020
The effect of vertical magnetic field on grain size and orientation of ferrite (δ) and austenite (γ) in welds of 10 mm 316L stainless steel were investigated during multilayer narrow gap laser-MIG hybrid welding.
Zhu Zhengwu, Ma Xiuquan, Wang Chunming, Mi Gaoyang   +3 more
semanticscholar   +1 more source

THERMO-MECHANICAL MODELING OF LASER-MIG HYBRID WELDING (LMHW)

AIP Conference Proceedings, 2011
Hybrid welding is a combination of two different technologies such as laser (Nd: YAG, CO2…) and electric arc welding (MIG, MAG / TIG …) developed to assemble thick metal sheets (over 3 mm) in order to reduce the required laser power. As a matter of fact, hybrid welding is a lso used in the welding of thin materials to benefit from process, deep ...
Ludovic Kounde, Thierry Engel, Jean-Michel Bergheau, Didier Boisselier, Francisco Chinesta, Yvan Chastel, Mohamed El Mansori   +6 more
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

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
openaire   +1 more source

Modeling the Transport Phenomena During Hybrid Laser-MIG Welding Process

Heat Transfer, Volume 3, 2003
Hybrid laser-MIG welding technology has several advantages over laser welding alone or MIG welding alone. These include the possibility of modifying weld bead shape including the elimination of undercut, the change of weld compositions, and the reduction of porosity formation in the weld. Although the hybrid laser-MIG welding method is becoming popular
Z. Zhou, W. H. Zhang, H. L. Tsai, S. P. Marin, P. C. Wang, R. Menassa   +5 more
openaire   +1 more source

Laser-MIG Hybrid Keyhole Welded 6mm Steel/Aluminum Butt Joints

Materials Science Forum, 2019
At present, the connection of steel/aluminum joints has been widely used in industrial fields such as aerospace, marine and automotive.Although the joints with excellent performance can be obtained by the solid phase welding methods such as explosion welding and friction welding, the production process is complicated and the efficiency is low, and the ...
Dong Qi Lu, Li Cui, Hong Xi Chen, Yao Qing Chang, Zhi Bo Peng, Ding Yong He   +5 more
openaire   +1 more source