Results 81 to 90 of about 809 (183)

Research on corrosion propagation mechanism in laser-arc hybrid high-nitrogen steel welded joint by dendritic connectivity

Journal of Materials Research and Technology
Localized corrosion in laser–arc hybrid welded high-nitrogen steel joints is strongly affected by microstructural heterogeneity. This study focused on the effect of welding speed on dendritic connectivity and the correlation with localized corrosion ...
Di Bai, Xudong Wang, Jia Liu, Yan Shi, Hong Zhang, Li Yang   +5 more
doaj   +1 more source

EFFECT OF LASER BEAM AND ARC POWER ON WELD BEAD GEOMETRY IN HYBRID LASER ARC WELDING OF STRUCTURAL STEEL

Zbornik radova
Hybrid Laser Arc Welding – HLAW combines the advantages of Laser Beam Welding - LBW and Gas Metal Arc Welding - GMAW, resulting in a welding process of high welding speed, less heat input, deeper penetration into the welding material, and increased process efficiency compared to conventional welding processes.
Martin Petreski, Dobre Runchev, Gligorche Vrtanoski, Filip Zdraveski, Marko Stankoski   +4 more
openaire   +1 more source

Understanding the influence of different HLAW parameters to increase the welding speed of 8 mm thick structural steel

Journal of Materials Research and Technology
Hybrid Laser Arc Welding (HLAW) integrates laser beam welding (LBW) and gas metal arc welding (GMAW) within a common welding zone, creating synergistic effects.
J.M. Sánchez-Amaya, Mariane Chludzinski, Alejandro Sambruno, A. Gómez-Parra   +3 more
doaj   +1 more source

Multi-pass laser welding with cut-wire particles of 50 mm thick steel plates

Journal of Alloys and Metallurgical Systems
Multi-pass laser welding with filler wire feeding shows significant potential for welding thick plates. However, this method faces challenges due to the need for edge preparation and stringent control of parameters such as wire feed speed and the ...
Mohamed Wahba, Masami Mizutani, Seiji Katayama   +2 more
doaj   +1 more source

Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs A level-set approach for the modelling of hybrid arc/laser welding process application for high thickness steel sheets joining

MATEC Web of Conferences, 2013
Le procédé de soudage hybride Arc/Laser est une solution aux assemblages difficiles de tôles de fortes épaisseurs. Ce procédé innovant associe deux sources de chaleur : un arc électrique produit par une torche MIG et une source laser placée en amont.
Desmaison Olivier, Bellet Michel, Guillemot Gildas   +2 more
doaj   +1 more source

Study on droplet transfer behavior and porosity defects in narrow-gap laser–arc hybrid welding of titanium alloy

Hanjie xuebao
In narrow-gap laser–arc hybrid welding, the droplet transfer behavior indirectly affects the formation of porosity defects by influencing the molten pool disturbance and keyhole stability.
Fashuai XIONG, Chuang CAI, Jie YU, Zilin CHEN, Zhenxin LI, Ping TANG, Hui CHEN   +6 more
doaj   +1 more source

Influence of welding sequences on residual stress and deformation of U-rib components fabricated by laser-arc hybrid welding

Journal of Materials Research and Technology
This paper aims to investigate the influence of welding sequences on welding induced residual stress and deformation of U-rib components fabricated by laser-arc hybrid welding through experimental and numerical methods.
Shaoning Geng, Yuantai Li, Ping Jiang, Yilin Wang, Jun Jin, Chu Han   +5 more
doaj   +1 more source

Research Status and Progress of All-Position Narrow-Gap GMAW for Pipelines

Applied Sciences
During the all-position narrow-gap welding process of pipelines, welding defects tend to occur in non-flat welding positions, constraining the quality and efficiency of pipeline construction.
Wenji Liu, Qing Li, Jianfeng Yue, Peng Zhu, Bing Li   +4 more
doaj   +1 more source

Microstructure and properties of AH36 steel joints by laser-submerged arc hybrid welding

Hanjie xuebao
The double-sided welding without groove for 16 mm thick AH36 steel plates was conducted by a laser-submerged arc hybrid welding process. The microstructures and mechanical properties of the laser zone and submerged arc zone of the welded joints were ...
Pengbo WU, Kai XU, Bin TENG, Hongwei LI, Naiwen FANG, Dongkun YIN, Qi LI   +6 more
doaj   +1 more source

Effects of Shielding Gas Composition on Process Stability and Arc Behavior of Laser-Cable-Type Welding Wire Arc Hybrid Welding

Metals
This study systematically investigates the behavior of droplet transfer and the characteristics of weld morphology in laser-cable-type welding wire (CWW) arc hybrid welding under varying Ar-CO2 shielding gas compositions, utilizing AH36 shipbuilding ...
Zhidong Yang, Kun Wang, Yang He, Yinhui Rao, Xiaojie Yang, Peng Zhao, Chenfu Fang, Yuntao Chen   +7 more
doaj   +1 more source