Results 41 to 50 of about 18,438 (273)

High-resolution 3D weld toe stress analysis and ACPD method for weld toe fatigue crack initiation [PDF]

, 2019
Weld toe fatigue crack initiation is highly dependent on the local weld toe stress-concentrating geometry including any inherent flaws. These flaws are responsible for premature fatigue crack initiation (FCI) and must be minimised to maximise the fatigue
Chaudhuri, Somsubhro, Crump, J., Mellor, B. G., Reed, P. A. S.   +3 more
core   +2 more sources

Undercuts in Laser Arc Hybrid Welding

Physics Procedia, 2014
AbstractUndercuts are usually an imperfection in welding that either continuously or sporadically form, especially when welding at high speed. Efforts, usually lowering the welding speed or overfilling, are applied to avoid undercuts as they can significantly lower the fatigue properties of the welded workpiece. Undercut formation is complex and occurs
Frostevarg, Jan, Kaplan, Alexander F.H.
openaire   +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

Double-sided Hybrid Laser-Arc Welding of 25 mm S690QL High Strength Steel

IOP Conference Series: Materials Science and Engineering, 2021
Hybrid Laser-Arc Welding (HLAW) technique is an enabler for the next generation high efficiency we lding, bu t in dustrial ad option ha s be en li mited du e to pr ocess complexity.
C. Sørensen, A. Nissen, C. Brynning, J. Nielsen, R. Schøn, R. Malefijt, M. Kristiansen   +6 more
semanticscholar   +1 more source

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

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

Application of laser in seam welding of dissimilar steel to aluminium joints for thick structural components [PDF]

, 2015
Laser welding-brazing technique, using a continuous wave (CW) fibre laser with 8000 W of maximum power, was applied in conduction mode to join 2 mm thick steel (XF350) to 6 mm thick aluminium (AA5083-H22), in a lap joint configuration with steel on the ...
Ganguly, Supriyo, Martins Meco, Sonia Andreia, McPherson, Norman, Rodrigues Pardal, Goncalo, Williams, Stewart W.   +4 more
core   +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

Nanoparticle-enabled phase control for arc welding of unweldable aluminum alloy 7075. [PDF]

, 2019
Lightweight materials are of paramount importance to reduce energy consumption and emissions in today's society. For materials to qualify for widespread use in lightweight structural assembly, they must be weldable or joinable, which has been a long ...
Cao, Chezheng, Li, Xiaochun, Pan, Shuaihang, Sokoluk, Maximilian   +3 more
core   +2 more sources

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