Influence of Welding Sequence on the Welding Residual Distortion for Laser Welded Sandwich Structures Used in Shipbuilding Industry

Shu Ling Chen; Song Lin Yang

doi:10.4028/www.scientific.net/AMM.236-237.434

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 236-237Influence of Welding Sequence on the Welding...

Influence of Welding Sequence on the Welding Residual Distortion for Laser Welded Sandwich Structures Used in Shipbuilding Industry

Abstract:

Based on the classical theory of welding structure, the welding residual distortion for laser welded sandwich structure was simulated using finite element method(FEM). The results showed that welding front all and then to back may lead to a relatively high welding residual distortion. The maximum distortion in Z-direction is higher than 0.5mm. The distortion can be obviously decreased when the welding sequence is welded from front to back and then back to front alternatively. The maximum distortion in Z-direction is less than 0.1 mm.

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Periodical:

Applied Mechanics and Materials (Volumes 236-237)

Pages:

434-438

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.236-237.434

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Online since:

November 2012

Authors:

Shu Ling Chen, Song Lin Yang

Keywords:

Finite Element Method (FEM), Laser Welding, Residual Distortion, Sandwich Structure

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