最新快速成型机设计设计说明

快速成型机设计设计

说明

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摘要

快速成型(RP)技术是近年来倍受学术界和制造业关注的一种先进成型制造技术。目前世界上占主导地位的5种RP成型方法其基本原理业己完善，针对具体的RP系统如何在不增加昂贵的附加成本的同时，进一步提高成型效率、提高成型件的精度、完善成型件性能以及尽量扩展成型件的适用范围是发展RP技术的重要课题.作者正是基于以上观点，就高分子粉末材料的激光选区烧结(SLS)快速成型技术中的成型精度、成型时间、扫描路径、成型件的后处理及成型件在制模中的应用问题开展了深入的研究。将所研究结果应用于设计机械结构中，提高成型机工作合理性。

选择性激光烧结工艺（SLS）又称为激光选区烧结。是借助精确引导的激光束使材料粉末烧结或熔融后凝固形成三维原型或制件。该工艺方法是由美国得克萨斯大学奥斯丁（Austin）分校的C.R.Dechard于1989年研制成功的。

目前研究SLS的有DTM公司，E.O.S公司，3D Systems公司，北京隆源公司，华中科技大学，华北工学院，南京航空航天大学等。其中，最早将SLS市场化的是DTM公司。

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作者对比DTM，EOS两大公司的经典设计方案，改进设计结构，

增强工作性能，试图将新的思想带入到SLS成型机的设计中。

关键词：快速成型，激光选区烧结，成型效率，成型精度

The Selective Laser Sinter

Abstract

Rapid Prototyping( RP)is an advanced forming and processing technology that is followed with interest by researchers and manufactures in recent years. Now the basic principles of five kinds of RP technology, which dominate in the world, have been integrated. To special RP systems, it is an important subject how to decrease forming time, improve the prototyping precision and extend the utilization area of prototyping without extra expensive cost. Just on the basis of all above opinions, the research on the forming precision, forming time, scanning path, post-treatment and RT of SLS on the high molecular powder materials is preceded. The result of this research has been successfully applied into the system and has great effect on manufacturing qualified parts, also is a foundation of ameliorating this system.

The Selective Laser Sinter(SLS) is also named Laser Selectivity Sinter. It can make the datum powder sinter or blend to three-dimensional antitype by dint

of exactitude introductory laser. This craftwork is created in 1989 by an American, C.R.Dechard, who lived in the Austin.

Now, there are many company studying the SLS in the world, for example ,

the DTM, E.O.S, 3D Systems. And there are also many company in our country, for instance, Beijing Longyuan Lst., the middle of China science and

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technology University. But the first company who made the SLS commercial is the DTM.

Author would like compare the design blue print of DTM and E.O.S, and improve the design, also try to take a new idea into the SLS. KEYWORDS: Rapid Prototyping, Selective Laser Sintering, forming precision,Forming time

毕业设计（论文）原创性声明和使用授权说明

原创性声明

本人郑重承诺：所呈交的毕业设计（论文），是我个人在指导教师的指导下进行的研究工作及取得的成果。尽我所知，除文中特别加以标注和致谢的地方外，不包含其他人或组织已经发表或公布过的研究成果，也不包含我为获得及其它教育机构的学位或学历而使用过的材料。对本研究提供过帮助和做出过贡献的个人或集体，均已在文中作了明确的说明并表示了谢意。

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