光固化快速成形工艺中过固化深度的研究  

Research on Over-cured Depth in Stereolithography Process

作　　者：罗声[1] 胥光申[1] 金京[1] 邱荣华[1] 

机构地区：[1]西安工程大学机电学院,西安710048

出　　处：《机械科学与技术》2009年第9期1213-1215,共3页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50745017,50875194);陕西省科技厅自然科学基础研究项目(2005E203);陕西省教育厅自然科学专项项目(08JK305);西安工程大学基础研究基金项目(XGJ07002)资助

摘　　要：为提高快速成形系统堆积方向微细结构的制作精度,根据光固化激光快速成形工艺的成形特点,建立了光固化激光快速成形工艺过固化深度的理论模型,据此模型提出了通过减小激光功率与扫描速度之比、增大分层厚度以及增大激光束在液态与固态树脂中的投射深度比来减小过固化深度,并对以上结论进行了实验验证。In order to increase the building accuracy of microstructure in stereolithography process in Z direction, the model of over-cured depth in stereolithography process is set up according to the characteristic of stereolithography process. It is proposed that over-cured depth can be decreased through decreasing the ratio of laser power to scanning speed, increasing the thickness of layer and increasing the ratio of Dp to Dp^8. Experiments were carried to test the validity of the model.

关 键 词：快速成形 光固化 过固化深度 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]