Results 71 to 80 of about 740 (166)

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

Filler Metal Mixing Behaviour of 10 mm Thick Stainless Steel Butt-Joint Welds Produced with Laser-Arc Hybrid and Laser Cold-Wire Processes

Applied Sciences, 2019
In thick section laser welding, filler metal addition is usually required to improve joint fit-up tolerances or to control the chemical composition of the weld metal.
Miikka Karhu, Veli Kujanpää, Harri Eskelinen, Antti Salminen   +3 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

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

Metals, 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, Paola Leo, Michelangelo Mortello, Patrizia Perulli, Alessandra Varone   +4 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

Investigating the Influence Mechanism of Different Shielding Gas Types on Arc Characteristics and Weld Quality in TA2 Laser–Arc Hybrid Welding

Metals
The effective welding of a 6 mm thick TA2 pure titanium medium-thickness plate was achieved by laser–arc hybrid welding (LAHW) with helium–argon mixed shielding gas.
Haojie Zhang, Mingyao Shen, Xueqin Tian, Qunli Zhang, Zhijun Chen, Jianhua Yao   +5 more
doaj   +1 more source

Microstructure evolution and porosity suppression in high-power laser-arc hybrid welded thick aluminum alloy T-joints through high-frequency beam oscillation

Journal of Materials Research and Technology
The mechanical properties of aluminum alloy T-joints are critically influenced by the microstructural characteristics and porosity distribution. This study systematically investigated the effects of the laser oscillation frequency from 100 to 300 Hz on ...
Jiahui Zheng, Yunfei Meng, Yu Ke, Zhiqiang Zhou, Chao Ge, Zhenxing He, Chendong Shao, Fenggui Lu, Haizhou Li, Zongtao Zhu, Hui Chen   +10 more
doaj   +1 more source

Recent advances in joining technologies of aluminum alloys: a review

Discover Materials
Aluminum alloys have become vital in industries such as aerospace and automotive due to their high strength-to-weight ratio, corrosion resistance, and versatility.
Modupeola Dada, Patricia Popoola
doaj   +1 more source

The Morphology of Laser Arc Hybrid Welds

, 2014
This thesis is about formation of surface imperfections formed in welding when using the manufacturing methods of laser welding and laser arc hybrid welding. In hybrid welding a traditional arc welding source and a laser share the same melt pool, making the process even more complex.
openaire   +1 more source

Analysis of laser arc hybrid welding experiments

, 2014
The thesis is about the analysis of experimental results on the laser arc hybrid welding (LAHW) process as well as about the methodology and tools behind. Due to the high potential on weld penetration and welding speed, the industrial importance of LAHW techniques has been increasing in the recent years.
openaire   +1 more source