钛合金牙冠选择性激光熔化成形变形的数值模拟
Numerical Simulation of Selective Laser Melting Deformation of Titanium Alloy Crowns
黄昌丽 1伍权 1宋金松 2程进荟1
作者信息
- 1. 贵州师范大学机械与电气工程学院,贵州贵阳 550025
- 2. 诺世创(北京)技术服务有限公司,北京 100080
- 折叠
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.
Abstract
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.
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Key words
titanium alloy crown/additive manufacturing/selective laser melting/numerical simulation/surface deviation引用本文复制引用
基金项目
贵州省教育厅服务"四新""四化"科技攻关项目(黔教技[2022]005号)
出版年
2024
NETL
NSTL
万方数据