Numerical simulation of temperature field in multiple-wire submerged arc welding of X80 pipeline steel

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Yan, Chunyan^1 ; Jiang, Han^1 ; Wu, Lichao^1 ; Kan, Chenxia^1 ; Yu, Wen^2

College of Mechanical and Electrical Engineering, Hohai University, Changzhou

213022, China^1

SIASUN Robot and Automation CO. LTD., Shenyang

110168, China^2

关键词: Finite element simulations;    Heat flux distributions;    Heating effect;    Moving heat sources;    Numerical simulation of temperature fields;    Threedimensional (3-d);    Welding temperatures;    X80 pipeline steels;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/2/022048/pdf
DOI  :  10.1088/1755-1315/108/2/022048

来源: IOP

【 摘 要 】

Three dimensional (3D) finite element (FE) simulation was implemented to predict the temperature distribution during multiple-wire submerged arc welding (SAW) throughout the welded joint of X80 pipeline steel. A moving heat source model based on Goldak's double-ellipsoid heat flux distribution was applied in the simulation to capture the heating effect of the welding arc. Effects of welding speed, wire spacing and leading wire current on temperature distribution were further investigated. The simulation results show that both welding speed and wire spacing have significant effects on welding temperature distribution in X80 pipeline steel welded joint.