Process stability in laser–MIG hybrid welding of aluminum alloys with various laser and arc distances
Source abstract
Abstract
During laser–MIG hybrid welding process of aluminum alloys, the distance between laser and arc heat source (DLA) is one of the key factors which affect the welding process stability. Weld formation exhibited various penetration depths, since the interaction between laser and arc changed. Hybrid plasma morphology fluctuated significantly at DLA of 0 mm and hybrid plasma height decreased with the increase of DLA. Violent evaporation of droplet and spatters were generated at DLA of 0 mm. Moreover, keyhole fluctuated violently and significant downward flow of liquid metal was induced at the bottom zone of molten pool due to the impact action of droplet. Keyhole fluctuation was suppressed and molten pool stability was improved at DLA of 2 mm.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Welding Techniques and Residual Stresses · Additive Manufacturing Materials and Processes · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
Funding
National Natural Science Foundation of China · State Key Laboratory of Advanced Welding and Joining
References (27)
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