Deformation compensation of long thick-walled welded plates by elastic pre-bending method

Ke Yuan; Yujin Lin; Bin Gu; Haidong Yu

doi:10.1117/12.3050297

28 October 2024 Deformation compensation of long thick-walled welded plates by elastic pre-bending method

Ke Yuan, Yujin Lin, Bin Gu, Haidong Yu

Author Affiliations +

Proceedings Volume 13290, Seventh International Conference on Mechanical Manufacturing and Industrial Engineering (MMIE 2024); 1329003 (2024) https://doi.org/10.1117/12.3050297
Event: 7th International Conference on Mechanical Manufacturing and Industrial Engineering : Advancements in Precision Engineering: Innovation and the Future, 2024, Tokyo, Japan

Abstract

The welding-induced longitudinal bending deformation is significant for long welded structures, which strongly affects the dimensional accuracy of assembled products. For thick-walled welded structures, the longitudinal bending deformation is difficult to precisely eliminate due to high stiffness of the structures, which leads to low manufacturing accuracy and efficiency. In this paper, an accurate and efficient method is proposed to compensate for the longitudinal bending deformation of long thick-walled welded plates based on the elastic pre-bending technique. A theoretical model is developed to quantitate the effect of elastic pre-bending displacement on the welding-induced longitudinal bending deformation. The theoretical results are compared with those obtained by finite element analysis, which verifies the effectiveness of the theoretical model. The optimal elastic pre-bending displacement is efficiently determined based on the theoretical model, and the longitudinal bending deformation of the welded plate is reduced to 0.27mm with the optimal pre-bending displacement. The proposed theoretical model may help improve the precision and efficiency of deformation control for long thick-walled welded structures.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ke Yuan, Yujin Lin, Bin Gu, and Haidong Yu "Deformation compensation of long thick-walled welded plates by elastic pre-bending method", Proc. SPIE 13290, Seventh International Conference on Mechanical Manufacturing and Industrial Engineering (MMIE 2024), 1329003 (28 October 2024); https://doi.org/10.1117/12.3050297

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KEYWORDS

Deformation

Elasticity

Plastics

Critical temperature

Finite element methods

Bending stress

Manufacturing

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