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Abstract

Permanent angular distortion of the welded structure is developed because of non-uniform transverse shrinkage on thickness. Reducing and controlling residual angular deformation from the welding processes is extremely important in the manufacturing industry. A new method, asymmetrical double sided arc welding (A-DSAW), is studied due to controlling residual angular distortion. But it is not clear about the effects of arc distance on the angular distortions. In this paper, the effects of arc distance on angular deformation are researched through developing finite element model of A-DSAW at different arc distances. To verify the calculated results, the temperature and angular distortion are measured. Numerical and experimental results indicate that angular distortion v. arc distance appears non-linear relationship and the effect mechanism of arc distance on angular distortion of A-DSAW is further analysed.

Keywords

A-DSAW ARC DISTANCE ANGULAR DISTORTION DISTORTION CONTROLLING NUMERICAL SIMULATION

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Effects of arc distance on angular distortion by asymmetrical double sided arc welding

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