改进STL分层算法在机械零件3D打印中的应用研究  

Application of Improved STL Layering Algorithm in 3D Printing of Mechanical Parts

作　　者：陈鸿寿 CHEN Hongshou(School of Art and Design,Fuzhou University of International Studies and Trade,Fuzhou 350202,China)

机构地区：[1]福州外语外贸学院艺术与设计学院,福建福州350202

出　　处：《佳木斯大学学报（自然科学版）》2023年第2期36-39,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：为提高三维(Three dimensional,3D)打印机械零件生产方式的生产效率和产品质量,研究提出一个改进的光固化立体造型术(Stereolithography,STL)模型分层算法,该算法采用层厚关联方式对STL模型进行同步分块处理,并结合三角网格面片的顶点信息与法向量信息重构邻接拓扑关系,形成切片平面的网格面片环,并以此为基础对STL模型进行优化分层切片。实验结果显示,该算法在分层厚度为0.30mm条件下的分层算法轮廓算术平均偏差均值为0.77,平均计算耗时为2.45s,均明显优于目前行业内常用的分层算法。实验结果证明,此次设计的改进STL模型分层算法在复杂机械零件3D打印生产中具有一定的应用前景,并能起到加快零件生产速度、提高打印产品表面光滑度的作用。In order to improve the production efficiency and product quality of the three dimensional(3D)printing mechanical parts production mode,an improved Stereolithography(STL)model layering algorithm is proposed in this study.The algorithm uses layer thickness association to synchronously block STL models,and reconstructs the adjacency topology by combining the vertex information and normal vector information of triangular mesh patches.The mesh patch ring of the slice plane is formed,and the STL model is optimized and sliced based on this.The experimental results show that the average arithmetic deviation of the contour of the algorithm is 0.77 and the average calculation time is 2.45s when the layer thickness is 0.30mm,which is obviously superior to the commonly used layer algorithm in the industry.The experimental results show that the improved STL model layering algorithm designed in this paper has a certain application prospect in 3D printing production of complex mechanical parts,and can accelerate the production speed of parts and improve the surface smoothness of printed products.

关 键 词：STL模型 分层切片 层厚关联 邻接拓扑 网格面片 

分 类 号：TH164[机械工程—机械制造及自动化] TP301.6[自动化与计算机技术—计算机系统结构]