Results 1 to 10 of about 30,206 (259)

Development of laser welding of high strength aluminium alloy 2024-T4 with controlled thermal cycle [PDF]

MATEC Web of Conferences, 2020
An innovative process design, to avoid thermal degradation during autogenous fusion welding of high strength AA 2024-T4 alloy, based on laser beam welding, is being developed. A series of instrumented laser welds in 2 mm thick AA 2024-T4 alloys were made
Demirorer Mete, Suder Wojciech, Ganguly Supriyo, Hogg Simon, Naeem Hassam   +4 more
doaj   +1 more source

Microscopic strain localisation in WAAM Ti-6Al-4V during uniaxial tensile loading [PDF]

MATEC Web of Conferences, 2020
Wire Arc-Based Additive manufacturing is a high deposition rate process suitable for building large-scale aerospace components. However, the larger heat source can cause greater microstructural heterogeneity and, in particular, a coarse columnar ß grain ...
Lunt David, Ho Alistair, Davis Alec, Martina Filomeno, Hönnige Jan, Quinta da Fonseca João, Prangnell Phillip   +6 more
doaj   +1 more source

Understanding and designing post-build rolling for mitigation of residual stress and distortion in wire arc additively manufactured components

Materials & Design, 2022
Post-build rolling can mitigate residual stress (RS) and distortion in large-scale components built by wire arc additive manufacturing (WAAM). In this study, based on numerical simulations that considered both WAAM deposition and vertical rolling, the ...
Valeriy Gornyakov, Jialuo Ding, Yongle Sun, Stewart Williams   +3 more
doaj   +1 more source

Computationally Efficient Models of High Pressure Rolling for Wire Arc Additively Manufactured Components

Applied Sciences, 2021
High pressure multi-layer rolling is an effective method to reduce residual stress and distortion in metallic components built by wire arc additive manufacturing (WAAM).
Valeriy Gornyakov, Yongle Sun, Jialuo Ding, Stewart Williams   +3 more
doaj   +1 more source

Effect of Substrate Alloy Type on the Microstructure of the Substrate and Deposited Material Interface in Aluminium Wire + Arc Additive Manufacturing

Metals, 2021
Wire + Arc Additive Manufacture is an Additive Manufacturing process that requires a substrate to initiate the deposition process. In order to reduce material waste, build and lead time, and improve process efficiency, it is desirable to include this ...
Eloise Eimer, Stewart Williams, Jialuo Ding, Supriyo Ganguly, Bechir Chehab   +4 more
doaj   +1 more source

A comparative study of microstructure and corrosion resistance in DP980 steel joints under different laser welding method

Journal of Materials Research and Technology, 2023
Three different laser welding methods were used to welding 2 mm DP980 steel butt joint, which were laser welding, laser-TIG hybrid welding and laser powder feeding (CoCrNi) welding respectively.
Shengli Liu, Taotao Li, Ruifeng Li, Kai Qi, Zhenguang Liu   +4 more
doaj   +1 more source

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

Metals, 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

Metallurgical Model of Diffusible Hydrogen and Non-Metallic Slag Inclusions in Underwater Wet Welding of High-Strength Steel

Metals, 2020
High susceptibility to cold cracking induced by diffusible hydrogen and hydrogen embrittlement are major obstacles to greater utilization of underwater wet welding for high-strength steels. The aim of the research was to develop gas–slag systems for flux-
Sergey G. Parshin, Alexey M. Levchenko, Alexey S. Maystro   +2 more
doaj   +1 more source

Numerical Simulation and Experimental Verification of Laser Multi-Section Welding

Chinese Journal of Mechanical Engineering, 2022
To address the problems of large welding deformation and splashing in the resistance spot welding of the lubricating oil cooler plate, the laser spot welding was employed, instead of the resistance spot welding, and a novel laser spot welding was ...
Jia Liu, Tao Jiang, Yan Shi, Hongyin Zhu, Yuchi Dai   +4 more
doaj   +1 more source

Numerical Study of Laser Welding of 270 μm Thick Silicon–Steel Sheets for Electrical Motors

Metals, 2023
In this study, the shape of laser welding parts required to develop a welding automation system was analyzed to improve the production process of thin-plate silicon–steel.
Dae Gune Jung, Ji Young Park, Choong Mo Ryu, Jong Jin Hwang, Seung Jae Moon   +4 more
doaj   +1 more source