激光技术2016，Vol.40Issue(6)：853-859,7.DOI:10.7510/jgjs.issn.1001-3806.2016.06.017
CFRP与不锈钢激光焊接的有限元分析
Finite element analysis of CFRP and stainless steel laser welding
摘要
Abstract
In order to investigate the mechanism of laser welding of carbon fiber reinforced plastics ( CFRP ) and stainless steel, and find out the effect of different process parameters on welding quality, a 3-D finite element model based on heat conduction welding was built by ANSYS. The distributions of temperature field and stress field were calculated by ANSYS. The effect of process parameters, including laser power, scanning welding and spot diameter, on welding width and welding depth was investigated. And the influence of welding residual stress on the quality of welding was also investigated. The results show that temperature field and residual stress distributions can be rapidly and effectively simulated by the proposed finite element model. Welding width and depth are affected by laser power, scanning welding and spot diameter. The calculated distribution and the theoretical distribution of residual stress agree well. The result confirms that the model is reliable. The result is helpful to obtain high quality welded joints of CFRP-stainless steel.关键词
激光技术/激光焊接/有限元分析/碳纤维增强热塑性复合材料/温度场/残余应力Key words
laser technique/laser welding/finite element analysis/carbon fiber reinforced plastics/temperature field/residual stress分类
矿业与冶金引用本文复制引用
王强,焦俊科,王飞亚,张文武,盛立远..CFRP与不锈钢激光焊接的有限元分析[J].激光技术,2016,40(6):853-859,7.基金项目
宁波市自然科学基金资助项目(2015A610078) （2015A610078）
深圳市基础研究布局资助项目(JCYJ20150529162228734) （JCYJ20150529162228734）
