基于SLM钛合金方向舵退火工艺仿真分析与优化  

Simulation analysis and optimization of annealing process of titanium alloy rudder based on SLM

作　　者：丁雨露 祝世超 吴政洋 龙兵 陈荣华 尹飞鸿[1] Ding Yulu;Zhu Shichao;Wu Zhengyang;Long Bing;Chen Ronghua;Yin Feihong(School of Aeronautics and Mechanical Engineering,Changzhou Institute of Technology,Jiangsu Changzhou,213300,China)

机构地区：[1]常州工学院航空与机械工程学院,江苏常州213300

出　　处：《机械设计与制造工程》2024年第1期25-29,共5页Machine Design and Manufacturing Engineering

基　　金：中国博士后科学基金(2022M721395)。

摘　　要：以SLM方法制备的钛合金方向舵为研究对象,采用固有应变法对其进行残余应力和变形分析,提出基于体单元仿真模型的退火工艺,并对其进行有限元仿真分析及工艺参数优化。结果表明:SLM方法制备的钛合金方向舵残余应力和变形量均较大,通过全交实验进行工艺参数优化后,方向舵的残余应力从1 206.96 MPa下降到143.86 MPa,变形量从8.63 mm减小到2.08 mm。The titanium alloy rudder prepared by the SLM method is taken as the research object.The residual stress and deformation analysis are carried out with the inherent strain method.An annealing process based on the volume element simulation model is proposed,and finite element simulation analysis and process parameter optimization are carried out.The results show that the residual stress and deformation of the titanium alloy rudder prepared by the SLM method are relatively large.After optimizing the process parameters through full orthogonal experiments,the residual stress of the rudder decreases from 1206.96 MPa to 143.86 MPa,and the deformation decreases from 8.63 mm to 2.08 mm.

关 键 词：激光选区熔化 固有应变法 退火工艺仿真 

分 类 号：TH16[机械工程—机械制造及自动化]