Results 31 to 40 of about 2,888 (228)

Effects of edge oxides from laser cutting in laser-arc hybrid welding [PDF]

, 2018
Laser-arc hybrid welding (LAHW) is a promising technique for joining sheets due to fast processing speeds and small gap bridgeability. Prior to welding, the edges are often prepared using laser cutting.
Masami Mizutani, Seiji Katayama, Mizutani, Masami,, Kawahito, Yousuke,, Pan Qinglong, Jan Frostevarg, Frostevarg, Jan,, Qinglong, Pan,, Katayama, Seiji,, Yousuke Kawahito   +9 more
core   +1 more source

Research On Laser-Arc Hybrid Welding Of Ht780 Steel

Welding in the World, 2011
The use of thick steel components that can be joined by one-layer-one-pass laser welding or laser-arc hybrid welding has been increasing with the trend of reducing the plate thickness by using higher strength steels. This has enhanced the demand for laser-arc hybrid welding of HT780 steels in the bridge and industrial machinery applications.
SUGA, Tetsuo, MURAI, Yasuo, KOBASHI, Taizo, UEYAMA, Tomoyuki, ERA, Tetsuo, UEDA, Yuji, SATO, Munenobu, HARA, Noriyuki   +7 more
openaire   +2 more sources

Improvement of Filler Wire Dilution Using External Oscillating Magnetic Field at Full Penetration Hybrid Laser-Arc Welding of Thick Materials

Metals, 2019
Hybrid laser-arc welding offers many advantages, such as deep penetration, good gap bridge-ability, and low distortion due to reduced heat input. The filler wire which is supplied to the process is used to influence the microstructure and mechanical ...
Ömer Üstündağ, Vjaceslav Avilov, Andrey Gumenyuk, Michael Rethmeier   +3 more
doaj   +1 more source

A computational fluid dynamic analysis of the effect of side draughts and nozzle diameter on shielding gas coverage during gas metal arc welding [PDF]

, 2012
Extensive experimental trials were conducted, emulating the conditions modelled, in order to validate the computational fluid dynamic results. Final results demonstrated that a more constricted nozzle was more effective at creating a stable gas column ...
Campbell, Stuart, Scanlon, Thomas, Galloway, Alexander, Ramsey, Gemma, McPherson, Norman   +4 more
core   +1 more source

Hybrid laser welding: Laser and arc in concert [PDF]

, 2022
S.34-36The idea of coupling a laser beam with a gas metal arc (GMA) has significantly expanded the original welding application range of lasers, providing improved robustness, efficiency and quality of the welding process.
Petring, D., Fuhrmann, C.
core  

Microstructure homogeneity and mechanical properties of laser-arc hybrid welded AZ31B magnesium alloy

Journal of Magnesium and Alloys
Laser-arc hybrid welding of AZ31B magnesium alloy was carried out, the effects of welding parameters on weld formation, microstructure homogeneity and mechanical properties were investigated.
Yongkang Gao, Kangda Hao, Lianyong Xu, Yongdian Han, Lei Zhao, Wenjing Ren, Hongyang Jing   +6 more
doaj   +1 more source

Welding Characteristic Analysis of Hybrid Welding on 2014 Aluminum Alloy

International Journal of Electrochemical Science, 2013
The experiment of TIG arc and laser high-frequency pulse TIG hybrid welding for 2014 aluminum alloy with the thickness of 7mm were carried out. Through the two welding processes experiments, the correlation between welding process and joints structure as
Zongyu Gao, Jianjun Fang, Yinong Zhang, Guowei Ran, Shide Zhang   +4 more
doaj   +1 more source

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Comparison of three different arc modes for laser-arc hybrid welding steel [PDF]

, 2016
Traditionally, Laser Arc-Hybrid Welding (LAHW) is made using a gas metal arc heat source in pulsed mode. In this study, welds made with three different arc modes under various conditions are compared. The arc modes compared for LAHW are: Standard, Pulsed,
Jan Frostevarg, Frostevarg, Jan,
core   +1 more source

Analysis of laser-slag interaction in laser beam tandem submerged arc hybrid welding using high-speed imaging

Journal of Advanced Joining Processes
Industrial welding of large sheet thicknesses of around 40 mm is generally carried out by using a submerged arc welding process. Process-induced, a large number of weld passes are required to join the components.
M. Clemens, L. Knoll, S. Olschok, U. Reisgen   +3 more
doaj   +1 more source