Mapping and modelling single scan track formation in direct metal selective laser melting

被引：110
|
作者：
Childs, THC [1 ]
Hauser, C [1 ]
Badrossamay, M [1 ]
机构：
[1] Univ Leeds, Sch Mech Engn, Leeds, W Yorkshire, England
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2004年 / 53卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
laser; sintering; FEM;
D O I：
10.1016/S0007-8506(07)60676-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
When a laser beam scans the surface of a metallic powder bed, the resulting track may be continuous with a crescent shape cross-section, continuous with an elliptical section, discontinuously irregularly broken, discontinuously balled or only partially melted. This paper reports experimental observations of what CO2 laser powers and scan speeds lead to what type of track, for M2 and H13 tools steels and 314S stainless steel powder beds. It also presents measurements of bed physical properties relevant to predicting the behaviour and the results of modelling that agree with the experiments. The results are placed in the broader context of selective laser melting build strategies
引用
收藏
页码：191 / 194
页数：4
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