基于STL的斜壁结构支撑及自动生成算法  

Slant wall structure support and its auto-generation algorithm using STL model

作　　者：黄小毛[1] 叶春生[1] 郭开波[1] 莫健华[1] 

机构地区：[1]华中科技大学材料成形及模具技术国家重点实验室,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2009年第1期18-22,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：湖北省自然科学基金创新群体资助项目(2004ABC001);国家科技型中小企业技术创新基金资助项目(05C26214201059)

摘　　要：为进一步降低熔丝沉积成形设备的运行成本,同时提高成形效率,设计一种斜壁结构的支撑,基于STL模型提出并实现其自动生成算法.实验证明该支撑结构与常用直壁结构支撑相比,不仅能够有效辅助零件实体的成形过程,而且能够尽可能地减少支撑材料消耗量和成形时间.算法实用可靠,已成功集成至Power RP软件支撑模块中.To reduce the maintenance cost and improve the efficiency of rapid prototyping equipments, a novel support structure with slant walls was designed. An algorithm/or its auto-generating was given and was implemented by using stereo lithography（STL） model. Compared with straight wall structure in general, this support structure can help to reduce the support material and building time as much as possible under the precondition of assisting part＇s fabrication successfully. Experiments show that this high quality support assists the part＇s fabrication well and can help saving support material and building time. The algorithm was embedded into Power RP software for FDM as an automatic support generation module.

关 键 词：快速成形 熔丝沉积成形 支撑 斜壁结构 STL模型 

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