Results 11 to 20 of about 8,560 (268)

Fluid Flow Characteristics and Weld Formation Quality in Gas Tungsten Arc Welding of a Thick-Sheet Aluminum Alloy Structure by Varying Welding Position

open access: yesApplied Sciences, 2018
This study aims to reveal the cause of different weld formation quality for varying welding position in the GTAW (Gas Tungsten Arc Welding) of a thick-sheet aluminum alloy structure.
Baohua Chang   +6 more
doaj   +1 more source

Weldability and Mechanical Properties of Fe/Al Dissimilar Joints by Resistance Spot Weld Bonding

open access: yesEngineering Proceedings, 2023
In this study, weldability and mechanical properties of resistance spot weld bonding were investigated when adhesives with different properties were used.
Shoma Sakurai   +3 more
doaj   +1 more source

Research on fiber laser welding formation, microstructure, and mechanical properties of 7.5 mm 304 stainless steel

open access: yesJournal of Materials Research and Technology, 2023
304 austenitic stainless steel with a thickness of 7.5 mm was welded by high-power fiber laser welding. The effects of main welding parameters, including laser power, welding speed, and defocusing amount, on weld formation were studied in detail.
Peikang Tao   +3 more
doaj   +1 more source

Effect of Increasing Oscillation Width on the Arc Characteristics and Droplet Transfer Behavior of X80 Steel in the Overhead Welding Position of Narrow Gap P-GMAW

open access: yesMetals, 2023
In the welding process of thick plate narrow gap pulse gas metal arc welding (P-GMAW) overhead welding station, the arc characteristics and droplet transfer behavior that become more complex due to the combined effects of narrow gap groove, gravity, and ...
Yang Bao   +3 more
doaj   +1 more source

Weld Formation, Microstructure Evolution and Mechanical Property of Laser-Arc Hybrid Welded AZ31B Magnesium Alloy

open access: yesMetals, 2022
Laser-arc hybrid welding of AZ31B magnesium alloy was carried out in this paper, and the effects of welding parameters (laser power, welding speed, welding current) on weld formation, microstructure evolution and mechanical property were studied.
Sibo Wang, Chunyan Yan, Zhengjia Gu
doaj   +1 more source

Improving Welding Penetration and Mechanical Properties via Activated-Flux Smearing by Tungsten Inert Gas Arc Welding

open access: yesMetals, 2023
For the welding process of thick-walled structural components in liquid rocket engines, the activated-flux TIG method can effectively address issues such as the formation of intermetallic phases in the weld seams, thereby enhancing mechanical performance.
Shiqi Yue   +5 more
doaj   +1 more source

Microstructure Development during Low-Current Resistance Spot Welding of Aluminum to Magnesium

open access: yesJournal of Manufacturing and Materials Processing, 2019
Resistance spot welding of aluminum (Al5754) to magnesium (AZ31B) alloys results in the formation of a variety of solidification microstructures and intermetallic compounds that may affect the in-service performance of the weld.
Kavian O. Cooke, Tahir I. Khan
doaj   +1 more source

Predictions of solute mixing in a weld pool and macrosegregation formation during dissimilar-filler welding of aluminum alloys: Modeling and experiments

open access: yesJournal of Materials Research and Technology, 2020
The solute mixing phenomena of filler and base metal melts during dissimilar-filler metal-inert gas (MIG) welding are simulated by a multi-phase lattice Boltzmann (LB) model for predicting macrosegregation formation in the weld joint.
Qingyu Zhang   +7 more
doaj   +1 more source

A kind of special weld lines with high specific strength and elongation obtained by core-back chemical foam injection molding

open access: yeseXPRESS Polymer Letters, 2019
In this paper, a kind of polypropylene (PP) foam plastic parts with special weld lines were obtained by core-back foam injection molding with chemical blowing agent. A new kind of weld line was found and its formation process was proposed.
H. Wu   +4 more
doaj   +1 more source

Effects of laser oscillating frequency on energy distribution, molten pool morphology and grain structure of AA6061/AA5182 aluminum alloys lap welding

open access: yesJournal of Materials Research and Technology, 2021
This paper studied lap welding on 1.5 mm AA6061 and AA5182 aluminum alloy sheets with laser beam circular oscillation. The joint form is commonly used in new energy car bodies to achieve the purpose of reducing weight and combining the strength and ...
Lin Chen   +3 more
doaj   +1 more source

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