Research on modeling of heat source for electron beam welding fusion-solidification zone

被引：29

作者：

Wang Yajun ^{[1
]}

Fu Pengfei ^{[2
]}

Guan Yongjun ^{[3
]}

Lu Zhijun ^{[2
]}

Wei Yintao ^{[4
]}

机构：

[1] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China

[2] Beijing Aeronaut Mfg Technol Res Inst, Sci & Technol Power Beam Proc Lab, Beijing 100024, Peoples R China

[3] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China

[4] Tsinghua Univ, Dept Automot Engn, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China

来源：

CHINESE JOURNAL OF AERONAUTICS | 2013年 / 26卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Electron beam welding (EBW); Fusion-solidification zone; Heat source model; Temperature fields; Weld shape;

D O I：

10.1016/j.cja.2012.12.023

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

In this paper, the common heat source model of point and linear heat source in the numerical simulation of electron beam welding (EBW) were summarized and introduced. The combined point-linear heat source model was brought forward and to simulate the welding temperature fields of EBW and predicting the weld shape. The model parameters were put forward and regulated in the combined model, which included the ratio of point heat source to linear heat source Q(pr) and the distribution of linear heat source L-r. Based on the combined model, the welding temperature fields of EBW were investigated. The results show that the predicted weld shapes are conformable to those of the actual, the temperature fields are reasonable and correct by simulating with combined point-linear heat source model and the typical weld shapes are gained. (C) 2013 CSAA & BUAA. Production and hosting by Elsevier Ltd. All rights reserved.

引用

页码：217 / 223

页数：7

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