电焊机2017，Vol.47Issue(4)：15-19,5.DOI:10.7512/j.issn.1001-2303.2017.04.03
窄间隙坡口激光-MAG复合焊温度场数值模拟
Numerical simulation of laser-MAG hybrid welding temperature field with narrow gap groove
摘要
Abstract
When steel plates with narrow gap groove are welded using laser-MAG hybrid welding,groove will affect the shape of laser-induced plasma and arc,resulting in change of the distribution of energy density.Therefore,based on the interaction between the laser-induced plasma and arc,the compression effect of narrow gap groove on the plasma and arc,the laser MAG hybrid surfacing welding heat source model and the laser MAG hybrid welding heat source model which is suitable for narrow gap groove are established respectively.The numerical simulated results of two welding temperature fields show that the simulated weld shapes match the actual weld well,and the width and depth of the simulated weld are close to the test value.The narrow gap groove has an important effect on temperature field distribution.关键词
窄间隙坡口/激光-MAG复合焊/热源模型/温度场Key words
narrow gap groove/laser-MAG hybrid welding/heat source model/temperature field分类
矿业与冶金引用本文复制引用
董琦,胡连海,任德亮,齐海波,刘春涛..窄间隙坡口激光-MAG复合焊温度场数值模拟[J].电焊机,2017,47(4):15-19,5.基金项目
河北省自然科学基金(E2013210030) （E2013210030）
河北省高等学校科学技术研究指导项目(Z2012010) （Z2012010）
