Results 181 to 190 of about 2,888 (228)

Problems and issues in laser-arc hybrid welding

International Materials Reviews, 2009
Abstract Hybrid welding, using the combination of a laser and an electrical arc, is designed to overcome problems commonly encountered during either laser or arc welding such as cracking, brittle phase formation and porosity. When placed in close contact with each other, the two heat sources interact in such a way as to produce a single high intensity ...
T A Palmer, T Debroy
exaly   +2 more sources

Hybrid laser–arc welding [PDF]

, 2009
Part 1 Characteristics of hybrid laser-arc welding: Advantages and disadvantages of arc and laser welding Fundamentals of hybrid laser-arc welding Heat sources of hybrid laser-arc welding processes Effect of shielding gas on hybrid laser-arc welding Properties of joints produced by hybrid laser-arc welding Quality control and assessing weld quality in ...
openaire   +2 more sources

Synergetic effects of hybrid laser/arc welding

Science and Technology of Welding and Joining, 2005
The present study reports the results of a study examining the synergetic effects of hybrid laser/arc welding. Experiments were carried out with a 500 W Nd:YAG laser in combination with standard gas tungsten arc welding equipment and attention was focused on two aspects: the heat transfer efficiency and the melting efficiency.
G Den Ouden
exaly   +2 more sources

Hybrid laser arc welding: State-of-art review

Optics and Laser Technology, 2018
Abstract Hybrid laser arc welding simultaneously utilizes the arc welding and the laser welding, in a common interaction zone. The synergic effects of laser beam and eclectic arc in the same weld pool results in an increase of welding speed and penetration depth along with the enhancement of gap bridging capability and process stability.
Bappa Acherjee
exaly   +2 more sources

Analysis of hybrid Nd:Yag laser-MAG arc welding processes [PDF]

Optics and Laser Technology, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
Frédéric Coste
exaly   +3 more sources

Laser-Arc Hybrid Welding

Solid State Phenomena, 2007
Hybrid welding of stainless steels or aluminum alloys was performed using the heat sources of YAG laser and TIG, or YAG laser and MIG, respectively. The effects of welding conditions and melt flows on penetration depth, weld bead geometry and bubble/porosity formation were investigated with X-ray transmission real-time observation method.
Seiji Katayama, Yasuaki Naito, Satoru Uchiumi, Masami Mizutani   +3 more
openaire   +1 more source

Interaction mechanisms in hybrid laser arc welding

ICALEO 2014: 33nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2014
Achievable benefits in hybrid laser-arc welding are closely related to suitable parameter settings. Basic optimizations consequently need a profound understanding of the relevance of involved interaction mechanisms. These are however differently evaluated and discussed in literature.
Mahrle, Achim, Rose, Sascha, Lohse, Martin, Beyer, Eckhard, Füssel, Uwe   +4 more
openaire   +1 more source

Study of weld formation characteristics in laser-arc hybrid welding

International Journal of Modern Physics B, 2022
The laser-arc hybrid welding was carried out on the marine-use steel, and the effects of primary parameters on weld behavior were investigated. The results show that the weld penetration increased gradually with the increase of laser power. Meanwhile, superior weld formation, penetration and reinforcement were achieved when laser and wire distance was
Hongwei Sun, Zhidong Yang, Chenfu Fang, Yuntao Chen, Yongshun Zhang, Mingxiao Shi   +5 more
openaire   +1 more source

Review of laser-arc hybrid welding

PICALO 2010: 4th Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2010
Laser-arc hybrid welding is a promising technology which can be widely used in industry and it attracts attention of the researchers worldwide. Combining two heat sources with different physical properties and energy transmission mechanisms together, laser-arc hybrid welding possesses the composite advantages of laser welding and arc welding.
Rongshi Xiao, Shikai Wu
openaire   +1 more source

Weld microstructure and shape of laser–arc hybrid welding

Science and Technology of Welding and Joining, 2008
A series of CO2 laser–metal inert gas arc hybrid welding experiment was carried out to investigate the effects of laser/arc energy ratio and groove parameters on the shape and microstructure of hybrid weld. The results showed that increasing arc current and groove cross-section area can reduce dimension difference of laser zone and arc zone by ...
M. Gao, X. Y. Zeng, Q. W. Hu, J. Yan
openaire   +1 more source