Effect of Welding Sequence on Welding Deformation and Re-sidual Stress of Ear Plate Structure

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Zhang, Guizhi^1^2 ; Zhang, Liping^1^2 ; Huang, Song^1^2 ; Cheng, Hao^3

Jiangsu XCMG Construction Machinery Research Institute Co. Ltd, Xuzhou

J S 221004, China^1

State Key Laboratory of Intelligent Manufacturing of Advanced Construction Ma-chinery, XCMG Construction Machinery Co. Ltd, Xuzhou

J S 221004, China^2

Xuzhou XCMG Schwing Machinery Co. Ltd, Xuzhou

J S 221004, China^3

关键词: Assembly designs;    Three dimensional finite element model;    Weld deformations;    Welding conditions;    Welding deformations;    Welding process;    Welding sequence optimizations;    Welding sequences;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032101/pdf
DOI  :  10.1088/1755-1315/295/3/032101

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this study, a three-dimensional finite element model of the welding process of the ear plate structure was established based on the thermal elastic-plastic method. The DOE method was used to design the welding sequence optimization scheme, and the effect of welding sequence on welding deformation and residual stress was studied. The results show that the variation of welding sequence has little effect on the residual stress of the ear plate structure, but has great influence on the post-weld deformation. Considering the field welding conditions, the reasonable welding sequence was determined finally, and it could meet the assembly design requirements of ear plate structure.