Original scientific paper

Q345C weld deformation analysis of butt joints

Y. Z. Zhong ; China 22 Mcc Group Corporation Limited, Tangshan, China
J. Yuan ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
C. Han ; China 22 Mcc Group Corporation Limited, Tangshan, China
X. M. Fang ; China 22 Mcc Group Corporation Limited, Tangshan, China
G. C. Yu ; China 22 Mcc Group Corporation Limited, Tangshan, China
H. C. Ji ; China 22 Mcc Group Corporation Limited, Tangshan, China; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China

Abstract

Q345C steel is welded under two different pre-welding heating methods of traditional flame heating and ceramic sheet heating. The finite element analysis of the butt joint weldment by ABAQUS software is used to summarize the law of welding deformation and compare the welding quality under different pre-welding heating methods according to the residual stress and deformation trend of the welding joint weld. The results show that the main stress after welding is concentrated in the weld seam and the surrounding area. The residual stress after welding after the heating and welding of the ceramic sheet is significantly less than the residual stress after the traditional flame heating welding, and the welding after the heating of the ceramic sheet can obtain better welding quality.

Keywords

Q345C; welding simulation; residual stress; the amount of deformation

Hrčak ID:

281398

URI

https://hrcak.srce.hr/281398

Publication date:

1.1.2023.

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