摘要
为预测激光选区熔化(selective laser melting,SLM)成形薄壁复杂零件的变形情况,利用热-机耦合的分析方法,以形状偏差作为衡量结果的指标,对TC4合金牙冠SLM成形过程进行数值模拟,得到牙冠SLM成形后牙冠的变形分布情况以及形状偏差值。对典型牙冠进行SLM成形并采用ATOS CS5M型三维扫描仪对牙冠进行三维扫描,将得到的牙冠模型与原始牙冠模型进行形状拟合,结果表明,热-机耦合分析方法能够有效预测牙冠的变形情况。
This study aims to predict the deformation distribution of thin-walled complex components formed via Selective Laser Melting(SLM),utilizing a thermal mechanical coupling analysis approach.The effectiveness of the results was evaluated by determining shape deviation.Numerical simulation was employed to depict the SLM forming process of TC4 alloy crowns,yielding the deformation distribution and shape discrepancy subsequent to SLM formation.SLM was executed on representative crown samples,which were later subjected to scanning by an ATOS CS5M 3D scanner.The resultant crown shapes were then aligned with the original crowns to assess their conformity.The results showed that the thermal mechanical coupling analysis method may serve as an effective tool for predicting crown deformation post-SLM processing.
作者
黄昌丽
伍权
宋金松
程进荟
Huang Changli;Wu Quan;Song Jinsong;Cheng Jinhui(School of Mechanical and Electrical Engineering,Guizhou Normal University,Guiyang 550025,Guizhou,China;Nuoshi Chuang(Beijing)Technical Service Co.,Ltd.,Beijing 100080,China)
出处
《应用激光》
CSCD
北大核心
2024年第1期11-17,共7页
Applied Laser
基金
贵州省教育厅服务“四新”“四化”科技攻关项目(黔教技[2022]005号)。
关键词
钛合金牙冠
增材制造
选区激光熔化
数值模拟
形状偏差
titanium alloy crown
additivemanufacturing
selective lasermelting
numerical simulation
surfacedeviation
作者简介
黄昌丽(1996-),女,硕士研究生。研究方向为激光增材制造、数值模拟。E-mail:498889242@qq.com;通信作者:伍权(1981-),男,博士,副教授。研究方向为快速成型制造、增材制造。E-mail:23984943@qq.com。
