摘要
为了降低无托槽隐形正畸矫治器的制造成本,基于增材制造设计(DfAM)准则对光固化3D打印的树脂牙颌模型进行轻量化研究。运用宏观拓扑优化和介观点阵填充,建立7种优化的牙模,通过ANSYS有限元仿真选取3种最佳的牙模进行3D偏差实验研究,对其在压膜环境下的物理和力学性能进行评估。结果表明,在保证隐形矫治器的制造精度前提下,二维蜂窝点阵填充的牙模相比初始牙模质量降比达到21.67%,是最佳的轻量化设计方案。
The lightweight of light-curing 3D printed resin dental cast was studied based on the code of design for additive manufacturing(DfAM), aiming at reducing the cost of manufacturing invisible orthodontic appliances without brackets. By using macroscopic topology optimization and matrix filling, 7 kinds of dental casts were established. Through ANSYS finite element simulation, 3 kinds of optimal dental casts were selected to conduct 3D deviation experiment, and their physical and mechanical properties under pressure were evaluated. The results show that under the premise of ensuring the manufacturing accuracy of the invisible orthodontic appliance, the mass reduction ratio of the two-dimensional honeycomb lattice filling dental cast reaches 21.67% compared with the initial dental cast, indicating that it is the best lightweight design scheme.
作者
张焱
刘红忠
周宏志
刘登科
宗学文
张晓红
ZHANG Yan;LIU Hongzhong;ZHOU Hongzhi;LIU Dengke;ZONG Xuewen;ZHANG Xiaohong(School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,P.R.China;Suzhou Research Institute of Xi’an Jiaotong University,Suzhou,Jiangsu 215123,P.R.China;Institute of Additive Manufacturing,School of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an 710054,P.R.China;School of Mechanical Engineering,Hunan Institute of Science and Technology,Yueyang,Hunan 414006,P.R.China)
出处
《重庆大学学报》
CAS
CSCD
北大核心
2023年第2期1-10,共10页
Journal of Chongqing University
基金
湖南省自然科学基金面上项目(2021JJ30302)
湖南省教育厅科学研究重点项目(20A216)
国家自然科学基金面上项目(51875200)。
关键词
DfAM
光固化3D打印
无托槽隐形矫治器
轻量化设计
DfAM
light-curing 3D printing
invisible orthodontic appliance without bracket
lightweight design
