基于有限元20GrMnTi合金钢激光熔覆工艺数值模拟  

Numerical simulation of finite element of 20GrMnTi alloy coating process of laser cladding on steel

作　　者：王国安[1,2] 朱坤鹏[1] 高岭[1] 张丽 

机构地区：[1]广西科技大学机械工程学院,广西柳州545006 [2]柳工机械股份有限公司,广西柳州545006

出　　处：《广西科技大学学报》2014年第4期83-86,共4页Journal of Guangxi University of Science and Technology

基　　金：国家科技支撑计划项目(2012BAF02B02)资助

摘　　要：以20GrMnTi合金钢为基体材料及熔覆层为Ni60材料建立有限元分析模型,模拟不同熔覆层厚度的瞬态过程分析其温度场和应力场,结果表明:激光功率一定时,熔覆层厚度的增加对结点温度的影响最大,且降低了基体与涂层两者之间的结合强度,熔覆层表面质量较差,为优化工艺参数提供依据.Building finite element analysis model which regards the 20GrMnTi steel as basic material and Ni60 as cladding layer is to simulate the transient process of cladding layer with different thickness to analyze its temperature and stress field. The results show that in the premise of constant laser power, the increase of cladding layer thickness has maximum impact on the junction temperature; it also reduces the bonding strength between the matrix and the coating, the surface quality of cladding layer is poor. It provides the basis for the optimization of process parameters.

关 键 词：有限元分析 熔覆层厚度 温度场 残余应力 数值模拟 

分 类 号：TU352.1[建筑科学—结构工程]