激光拼焊碾压机构碾压力研究  

Research on rolling pressure of rolling mechanism in tailored laser welding

作　　者：陈东[1,2,3] 赵明扬[1] 朱天旭[1] 

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016 [2]中国科学院研究生院,北京100049 [3]辽宁科技大学机械工程与自动化学院,辽宁鞍山114044

出　　处：《机械设计》2011年第7期60-64,共5页Journal of Machine Design

基　　金：中国科学院知识创新工程资助项目(07F7060701)

摘　　要：间隙是影响激光拼焊焊缝质量的主要因素之一,碾压预成型技术是解决间隙问题的有效方法。基于碾压机构的工作原理,通过微积分的方法建立了碾压机构碾压力计算的数学模型,并用有限元方法对碾压过程进行了仿真分析。搭建了碾压试验平台,对碾压力等参数进行了试验研究。结果表明碾压力的数学模型是准确的。该模型可为碾压机构设计和碾压工艺参数设计提供重要依据。Gap is one of the main factors that have influence on the weld quality of tailored laser welding,and rolling preforming technique is an effective method for solving the gap problem.Based on the principle of rolling mechanism,a mathematic model of rolling pressure evaluation of rolling mechanism is established through Calculus method,and rolling process is simulated and analyzed by using finite element method.An experimental prototype is built,parameters such as rolling pressure and etc.are measured.The results show that the mathematic model of rolling pressure is accurate.The model can provide important basis for the designs of rolling mechanism and rolling process parameters.

关 键 词：激光拼焊 碾压机构 碾压力 数学模型 有限元方法 

分 类 号：TH122[机械工程—机械设计及理论]