SUS304不锈钢与PCCF30的激光连接增强工艺参数建模与优化  

Modeling and Optimization of Laser Connection Enhancement Process Parameters for SUS304 Stainless Steel and PCCF30

作　　者：陈寒松[1] 梁怀志 王霄[1] CHEN Hansong;LIANG Huaizhi;WANG Xiao(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212000,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212000

出　　处：《热加工工艺》2024年第24期67-75,共9页Hot Working Technology

基　　金：国家自然科学基金(51275219)。

摘　　要：针对SUS304不锈钢与PCCF30(30%短碳纤维增强聚碳酸酯)激光直接连接接头剪切强度较低的问题,在SUS304不锈钢与PCCF30之间添加PET(聚对苯二甲酸乙二醇酯)中间层,同时对不锈钢表面进行激光织构预处理,以提高304不锈钢与PCCF30之间激光连接接头的强度。采用响应面法建立激光直接连接工艺参数和表面织构预处理工艺参数与接头剪切强度及织构预处理时间之间的数学模型,分析了各工艺参数组合对接头剪切强度的交互式影响。结果表明,激光直接连接功率-织构扫描次数、激光直接连接功率-激光连接速度对接头剪切强度的影响较大;模型验证及优化结果验证表明,所建模型的预测值与试验值较为吻合,模型可靠。Aiming at the issue of low shear strength in laser direct connection joints between SUS304 stainless steel and PCCF30(30%short carbon fiber reinforced polycarbonate),a PET(polyethylene terephthalate)intermediate layer was added between SUS304 stainless steel and PCCF30,and laser texture pre-treatment was performed on the surface of the stainless steel to improve the strength of the laser connection joint between SUS304 stainless steel and PCCF30.The response surface method was used to establish a mathematical model between the laser direct connection process parameters and texture pre-treatment process parameters,as well as the joint shear strength and texture pre-treatment time.The interactive effects of various process parameter combinations on the joint shear strength were analyzed.The results show that the laser direct connection power-texture scanning times and laser direct connection power-laser connection speed have a significant impact on the joint shear strength.The model validation and optimization results show that the predicted values of the constructed model are in good agreement with the experimental values,and the model is reliable.

关 键 词：激光直接连接 PET中间层 激光表面织构 工艺参数优化 

分 类 号：TG496[金属学及工艺—焊接]