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Effect of welding sequence on welding deformation of fork structure
Pages: 31-34+44+130
Year: Issue:  8
Journal: Transactions of the China Welding Institution

Keyword:  welding deformationnumerical simulationdigital image correlation techniquesthree-dimensional scanning;
Abstract: Welding deformation has negative impact on the bearing capacity and precision of structures,especially for fork structure and other sophisticated structure,which will result in very serious consequences. In order to measure the welding deformation of fork structure precisely and to control it,a simplified model of a 1∶ 3 titanium fork was produced. numerical simulation,digital image correlation techniques and three-dimensional scanning were used to measure the deformation in real-time and after welding. The simulation and experimental testing were combined closely,the actual engineering was taken into account,and the impact of welding sequence on welding distortion was quantified. At last the best welding sequence was found.
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