cause of angular distortion in fusion welding.pdf (2.45 MB)
Cause of angular distortion in fusion welding: asymmetric cross-sectional profile along thickness
journal contribution
posted on 2023-06-09, 16:24 authored by Deqiao Xie, Jianfeng Zhao, Huixin Liang, Shuang Liu, Zongjun Tian, Lida Shen, Chang WangChang WangAngular distortion is a common problem in fusion welding, especially when it comes to thick plates. Despite the fact that various processes and influencing factors have been discussed, the cause of the angular distortion has not been clearly revealed. In this research, the asymmetry of cross-sectional profile along thickness is considered of great importance to the angular distortion. A theoretical model concerning the melting-solidification process in fusion welding was established. An expression of the angular distortion was formulated and then validated by experiments of laser welding 316L stainless steel. The results show that the asymmetric cross-sectional profile is a major contributory factor towards the angular distortion mechanism. The asymmetry of cross-section profile along thickness causes the difference between two bending moments in the lower and upper parts of the joint. This is the difference that drives the angular distortion of the welded part. Besides, the asymmetry of cross-section profile is likely to be influenced by various processes and parameters, thereby changing the angular distortion.
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Publication status
- Published
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- Published version
Journal
MaterialsISSN
1996-1944Publisher
MDPIExternal DOI
Issue
1Volume
12Page range
58 1-14Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Dynamics, Control and Vehicle Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-01-08First Open Access (FOA) Date
2019-01-08First Compliant Deposit (FCD) Date
2019-01-03Usage metrics
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