异质零件3D打印建模基础  

Foundation of 3D printing modeling for heterogeneous parts

作　　者：杨继全[1] 李娜[1] 施建平[1] 唐文来 张钢 Yang Jiquan;Li Na;Shi Jianping;Tang Wenlai;Zhang Gang(School of Electrical and Automation Engineering,Nanjing Normal University,Jiangsu Nanjing,210023,China)

机构地区：[1]南京师范大学电气与自动化工程学院,江苏南京210023

出　　处：《机械设计与制造工程》2021年第8期1-9,共9页Machine Design and Manufacturing Engineering

摘　　要：异质零件设计和制造过程中使用多个模型,例如结构模型、材料模型和制造模型等。采用CAD软件设计的三维模型文件因用途不同,模型的格式经常不同,但因需要进行数据交换,所以需要建立数据交换标准。3D打印设备常用的“准标准”文件是STL格式,但STL格式并不完备,比如表面漏洞,表达的只是对象的几何信息,不包含色彩和材料信息,异质零件模型进行三角面片化所得到的传统STL格式文件也比较粗略。针对这些问题,首先介绍多材料3D打印的成形工艺及过程,然后重点阐述异质零件制造的模型及数据格式,最后给出基于STL格式的细化及在细化基础上的四面体模型。Multiple models are used in the design and manufacturing of heterogeneous parts,such as structural model,material model and manufacturing models.A variety of digital models will be used when using 3D printing technology to build entities,including geometric models,material models,slicing models,and printing models.The 3D model files designed by different CAD software have different formats.Details about these formats and how data can be exchanged between different formats are given.The micro-tetrahedral model discussed in this chapter has strong internal information processing capabilities,and will serve as the standard format for multi-material heterogeneous part information processing.

关 键 词：多材料3D打印 STL格式 微四面体模型 

分 类 号：TS853[轻工技术与工程]