基于FDM工艺的多材料建模方法及应用研究  

Application Research on Multiple Material Modeling Based on FDM Technique

作　　者：莫志勇[1,2] 冯春梅[1,2] 尹亚楠[1,2] 白英杰[1,2] 袁尧[1,2] 陈瑾[1,2] 

机构地区：[1]南京师范大学江苏省三维打印装备与制造重点实验,江苏南京210042 [2]南京师范大学电气与自动化工程学院,江苏南京210042

出　　处：《机械制造与自动化》2016年第3期136-138,145,共4页Machine Building & Automation

基　　金：国家自然科学基金项目(61273243);江苏省科技项目(BM2013006)

摘　　要：在三维打印成型中,多材料的应用不仅可以增强模型的表达效果,还能够制造出多功能复合材料零件,所以近年取得越来越广泛的应用。针对困扰多材料三维打印成型的基本问题,研究了建模方法,在综合比较的基础上,提出采用多色距离场方法解决多材料CAD建模的问题,这样的模型不仅能表达模型传统的结构信息,同时也能准确的用不同颜色表达不同的材料信息;此外,变形是制约成型质量的重要因素,因此针对FDM工艺中的变形,进行了理论分析,建立了数学模型,在此基础上得出减少变形的办法。并成功应用在多材料的三维打印中,取得了良好的效果。The use of multiple materials in three-dimension printing manufacturing can not only enhance the appearance of the mod- el, but also make it possible to produce heterogeneous parts. In recent years it has been used widely. In order to solve the funda- mental problems that hinder the application of multiple material 3-D printing, several modeling methods are studied. On the basis of comprehensive comparison, the method of multiple color distance field for multiple material CAD modeling is presented, which can describe not only the traditional structure information but also the material distribution of the model with different colors. Besides, de- formation is an important factor to determine the quality of the model. In order to solve the problem of deformation in FDM printing, theoretical analysis is conducted, and a mathematical model is established so as to find out ways to reduce deformation. The new methods are now being used in multiple material 3-D printing with satisfactory results.

关 键 词：三维打印 建模 多材料 变形 

分 类 号：TP204[自动化与计算机技术—检测技术与自动化装置]