Results 21 to 30 of about 4,145 (171)

Effect of Heat Input on LMHMW Joint of Carbon Steel

open access: yesApplied Sciences, 2021
Laser-MIG hybrid multi-layer welding (LMHMW) technology has been employed in paraxial configuration with laser leading for the welding of 20 mm thick Q235 carbon steel plates to exploit the hybridization effect that addresses the shortcomings of the ...
Shujun Zhou   +5 more
doaj   +1 more source

Study and Characterization of EN AW 6181/6082-T6 and EN AC 42100-T6 Aluminum Alloy Welding of Structural Applications: Metal Inert Gas (MIG), Cold Metal Transfer (CMT), and Fiber Laser-MIG Hybrid Comparison

open access: yesMetals, 2020
The present research investigates the effects of different welding techniques, namely traditional metal inert gas (MIG), cold metal transfer (CMT), and fiber laser-MIG hybrid, on the microstructural and mechanical properties of joints between extruded EN
Giovanna Cornacchia, Silvia Cecchel
doaj   +1 more source

Effect of kerf characteristics on microstructures and properties of laser cutting–welding of AA2219 aluminum alloy

open access: yesJournal of Materials Research and Technology, 2021
The purification of laser keyhole is an important means to remove the oxide layer of laser-MIG hybrid welding of aluminum alloy. Four common auxiliary gases (argon, nitrogen, air and oxygen) were used to prepare kerf with different characteristics, which
Cong Chen   +3 more
doaj   +1 more source

Research on weld formation mechanism of laser-MIG arc hybrid welding with butt gap [PDF]

open access: yesOptics & Laser Technology, 2021
Abstract At present, there are few researches on laser -MIG arc hybrid welding with a large butt gap. In this paper, laser-MIG arc hybrid welding is used to weld low-alloy high-strength steel with a thickness of 3 mm, and a laser-MIG arc hybrid welding process under large gap conditions is developed.
Huang, H.   +7 more
openaire   +2 more sources

Effect of droplet transition on the dynamic behavior of the keyhole during 6061 aluminum alloy laser-MIG hybrid welding

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
The simulation method in laser-MIG hybrid welding, which involves two heat sources and multiple welding parameters, is beneficial to reveal the complex physical phenomena and dynamic behavior of molten pool keyhole during the welding process.
Yue Li   +3 more
semanticscholar   +1 more source

Influence of alternating magnetic field on microstructure and mechanical properties of laser-MIG hybrid welded HG785D steel joint

open access: yesJournal of Materials Research and Technology, 2020
The work aimed to investigate the effects of alternating magnetic field on the microstructure, mechanical properties and plasma characteristics during laser-MIG hybrid welding of HG785D steel.
Biao Yang   +6 more
doaj   +1 more source

Influence of energy ratio on microstructure and mechanical properties in the transition zone of hybrid laser-MIG welded AH36/316L dissimilar joints

open access: yesJournal of Materials Research and Technology, 2021
The present study investigated the influence of energy ratio on microstructure and mechanical properties in the transition zone of hybrid laser-MIG welded 316L/AH36 joints.
Xiaohui Zhou   +5 more
doaj   +1 more source

Analysis of droplet transition features and weld formation in laser-MIG hybrid welding

open access: yesJournal of Physics: Conference Series, 2021
Abstract The image of laser-MIG hybrid welding process was collected by high-speed camera, the arc area and the barycenter of droplet were extracted by image processing method, the weld width and weld height were extracted from the 3D point cloud of weldment surface, and the relationship between droplet transition features, droplet ...
Guangwen Ye   +3 more
openaire   +1 more source

Effects of Laser Offset and Hybrid Welding on Microstructure and IMC in Fe–Al Dissimilar Welding

open access: yesMetals, 2017
Welding between Fe and Al alloys is difficult because of a significant difference in thermal properties and poor mutual solid-state solubility. This affects the weld microstructure and causes the formation of brittle intermetallic compounds (IMCs).
Giuseppe Casalino   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +7 more
doaj   +1 more source

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