刘越,叶宏,李礼,佘红艳,屈威,杨柳

• 1:重庆理工大学材料科学与工程学院
• 2:重庆市高校模具技术重点试验室

摘要(Abstract)：

针对目前激光熔覆层形貌尺寸的预测计算复杂,耗费的成本高,不适用于工程应用的问题,采用Nd:YAG脉冲激光器在Cr12MoV模具钢上进行激光熔覆试验,用多元线性回归方程建立起以激光电流、扫描速度和激光脉宽为预测变量,熔覆层宽度和高度为响应变量的多参数耦合数学模型,并将试验结果与线性回归方程预测的结果进行了比较。结果表明:熔覆层宽度和高度的试验值和预测值之间的误差分别可以精确到0.86%和0.49%,且该模型在其他不同工艺参数下的预测分析中得以验证。利用多元线性回归方程可以很好地表征多参数耦合下激光熔覆层的形貌尺寸,并且该方法简单高效,运算逻辑清晰。

关键词(KeyWords)： 激光熔覆;形貌预测;回归分析;多参数耦合

Abstract:

Keywords:

基金项目(Foundation): 重庆理工大学研究生创新基金(clgycx 20203022);; 重庆市大学生创新创业训练计划项目(2019CX001)

作者(Author): 刘越,叶宏,李礼,佘红艳,屈威,杨柳

DOI: 10.13289/j.issn.1009-6264.2021-0208

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