中国科学院重庆绿色智能技术研究院机构知识库

QQ客服 官方微博 反馈留言

	Experimental investigation on densification behavior and surface roughness of AlSi10Mg powders produced by selective laser melting
	Wang, Lin-zhi; Wang, Sen; Wu, Jiao-jiao
	2017-11-01
摘要	Effects of laser energy density (LED) on densities and surface roughness of AlSi10Mg samples processed by selective laser melting were studied. The densification behaviors of the SLM manufactured AlSi10Mg samples at different LEDs were characterized by a solid densitometer, an industrial X-ray and CT detection system. A field emission scanning electron microscope, an automatic optical measuring system, and a surface profiler were used for measurements of surface roughness. The results show that relatively high density can be obtained with the point distance of 80-105 mu m and the exposure time of 140-160 mu s. The LED has an important influence on the surface morphology of the forming part, too high LED may lead to balling effect, while too low LED tends to produce defects, such as porosity and microcrack, and then affect surface roughness and porosities of the parts finally. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	Laser energy density Selective laser melting Densification behavior Surface roughness
DOI	10.1016/j.optlastec.2017.05.006
发表期刊	OPTICS AND LASER TECHNOLOGY
ISSN	0030-3992
卷号	96页码:88-96
通讯作者	Wang, LZ (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Addit Mfg Technol & Syst, Chongqing 400714, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000405051800013
语种	英语