EFFECT OF THE MATERIAL ABSORPTIVE TO LASER ON TEMPERATURE AND STRESS FIELD DURING LASER BRAZE WELDING PROCESSING

摘要：

The absorptivity to laser energy of the different material is different.The temperature,pressure,surface roughness can all affect the absorptivity.The energy which the welding sample and the weld joint absorb are different,because the properties of the welding sample and the weld joint are different and their absorptive to the laser energy are different during the braze welding.In this paper,the numerical simulation method to the laser braze welding process is instructed firstly.The fluids fluxion effect and the latent heat of material fusion are considered.Secondly,the material absorptivity to laser is analyzed.The calculation results show that the effect of the different absorptivity to laser energy on the welding temperature and stress distribution is obvious during laser braze welding processing.The heat affect region,the welding temperature and stress distribution can all change with the different absorptivity.

关键词： laser braze welding material absorptive numerical simulation temperature stress

作者: Y.X.Yan J.Mo Z.M.Hao

作者单位: Institute of Structural Mechanics,CAEP,621900,P.R.China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 804-807

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）