Investigation and development of large-scale equipment and high performance materials for powder bed laser fusion additive manufacturing This paper reports a uniform preheating technique, a multi-laser scanning technique and a technique to prepare nylon coated composite powder

被引：19

作者：

Wen, S. F. ^{[1
]}

Yan, C. Z. ^{[1
,2
]}

Wei, Q. S. ^{[1
]}

Zhang, L. C. ^{[1
]}

Zhao, X. ^{[1
]}

Zhu, W. ^{[1
]}

Shi, Y. S. ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State key Lab Mat Proc & & Mould Technol, Wuhan 430074, Peoples R China

[2] Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England

来源：

VIRTUAL AND PHYSICAL PROTOTYPING | 2014年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

additive manufacturing; selective laser sintering; selective laser melting; equipment; materials;

D O I：

10.1080/17452759.2014.949406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The current available selective laser sintering (SLS) and selective laser melting (SLM) systems have relatively small effective building volumes, which do not offer capability to integrally manufacture a large dimension component. Therefore, our research team in Huazhong University of Science and Technology, China, has broken through some key techniques such as the large powder bed preheating system and multi-laser scanning technique, and then successfully developed a series of large-scale SLS systems with effective building volumes up to 1400x1400x500 mm(3), and an SLM system with an effective building volume of 500x250x400 mm(3). These large-scale SLS/SLM systems will not only offer new capability to make large complex prototypes and products, but also provide higher volume production capability to make numerous small parts rapidly and cost-effectively. In addition, several high performance materials have been developed for the large-scale SLS/SLM systems.

引用

页码：213 / 223

页数：11