Consecutive sub-sector scan mode with adjustable scan lengths for selective laser melting technology

被引：20

作者：

Zhang, Wenxian ^{[1
]}

Shi, Yusheng ^{[1
]}

Liu, Bing ^{[1
]}

Xu, Lin ^{[1
]}

Jiang, Wei ^{[1
]}

机构：

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

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2009年 / 41卷 / 7-8期

关键词：

Rapid manufacturing; Selective laser melting; Bidirectional scan pattern; Encasing box method; Contour polygons; Metal powder;

D O I：

10.1007/s00170-008-1527-0

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In an effort to optimize the manufacture of near fully dense metal parts, we have developed a sub-sector scan mode for selective laser melting (SLM) technology. The working process of such a scan mode is realized by the way that the contour polygons of a three-dimensional (3D) metal part obtained by slicing layer by layer are enclosed in a small quadrangle box, specifically an encasing box, and sub-boxes (sub-sectors) in square are then divided by the enclosed quadrangle box with short scan lengths on each side. Then these sub-sectors are hatched with bidirectional scanning lines which are normal with right-angles in adjacent sectors. The algorithm is presented in this paper. In the SLM processes, this scan pattern helps to increase the temperature in small sub-sectors and melt metal powder more effectively. Parts with complex structures from stainless steel 316 L were manufactured with this new scan mode.

引用

页码：706 / 713

页数：8

共 18 条

[1] The effect of scanning strategy on laser fusion of functionally graded H13/Cu materials [J].