Original scientific paper

Simulation analysis of X80 pipeline steel welding

M. M. Li ; China 22 MCC Group Corporation Limited; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. C. Ji orcid.org/0000-0002-1592-6362 ; China 22 MCC Group Corporation Limited; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
Q. S. Lin ; China 22 MCC Group Corporation Limited
C. D. Wu ; China 22 MCC Group Corporation Limited
S. Cai ; China 22 MCC Group Corporation Limited

Abstract

In order to improve the quality of welded joints and increase the service life of pipelines, ABAQUS finite element software was used to simulate the temperature field of 18,4 mm thick X80 pipeline steel in multi-layer and multi pass welding. The peak temperature of different passes was compared, and the change trend of temperature field in the welding process was obtained,. The results show that the peak temperature of the weld and its adjacent areas is higher, and the peak temperature of the weld center is the highest. Due to the fast welding speed, the heat cannot be transferred to other areas in time, resulting in uneven heating of the entire test panel.

Keywords

pipeline steel; X80; welded joint; welding simulation; temperature field

Hrčak ID:

290067

URI

https://hrcak.srce.hr/290067

Publication date:

3.4.2023.

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