Results 31 to 40 of about 7,976 (220)

Inhibiting weld cracking in high-strength aluminium alloys

Nature Communications, 2022
Fusion welding of 7000 series aluminum alloy is plagued by cracking from a fine equiaxed zone (FQZ). Here, the authors quantify key softening mechanisms, show the damage accumulation sequence, and propose a hybrid laser/arc welding strategy to mitigate ...
Yanan Hu, Shengchuan Wu, Yi Guo, Zhao Shen, Alexander M. Korsunsky, Yukuang Yu, Xu Zhang, Yanan Fu, Zhigang Che, Tiqiao Xiao, Sergio Lozano-Perez, Qingxi Yuan, Xiangli Zhong, Xiaoqin Zeng, Guozheng Kang, Philip J. Withers   +15 more
doaj   +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

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

A Numerical Simulation Study on the Tensile Properties of Welds in Laser-Arc Hybrid Welding of Q355 Medium-Thick Plates

Coatings
Laser-arc hybrid welding was applied to Q355 medium-thick steel plates to improve weld tensile properties, with experimental verification comparing welds to the base material.
Diao Tan, Li Cao, Wenlei Sun
semanticscholar   +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

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

Structure and Properties of Hybrid Laser Arc Welded T-Joints (Laser Beam – MAG) in Thermo-Mechanical Control Processed Steel S700MC of 10 mm thickness [PDF]

Archives of Metallurgy and Materials, 2018
In this article examinations of hybrid welding technology (laser beam + MAG) of T-joints from thermomechanically worked high strength steel S700MC 10 mm thick were presented. Joints welded from one side and both sides were made.
J. Górka
doaj   +1 more source

Numerical study on weld pool behaviors and keyhole dynamics in magnetic-field-assisted laser-arc hybrid welding of aluminum alloy

Journal of Materials Research and Technology, 2023
External magnetic field has been employed to improve appearance and suppress defects in the single laser or arc welding, and its physical mechanism in magnetic-field-assisted single laser or arc welding has been clearly clarified. However, few studies on
Caiwang Tan, Yang Dong, Haofeng Sun, Fuyun Liu, Xiong Han, Qijuan Dong, Bo Chen, Xiaoguo Song   +7 more
doaj   +1 more source