选区激光熔化工艺参数对Ti-6Al-4V成形质量的影响*

doi:10.11896/j.issn.1005-023X.2017.010.014

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Abstract Selective laser melting (SLM) is an additive manufacturing technique,through which functional, complex parts can be created directly by selectively melting metal powders. The influence of the processing parameters on the forming characteristics of metallic powder fabricated by SLM was discussed. The surface features, density, micro-hardness and microstructure were investigated by stereomicroscope, light optical microscopy, scanning electron microscope(SEM), microhardness tester in order to evaluate the forming quality of Ti-6Al-4V alloy fabricated by SLM with different scanning power (P), scanning speed (V), scanning width (S). The results indicated that Ti-6Al-4V fabricated by SLM with the parameters of P=450 W, V=2 500 mm/s, S=0.07 mm could obtain good surface quality, the density could reach 97.8%, the average micro-hardness was 446HV.

Key words： selective laser melting additive manufacturing titanium alloys process parameters density forming quality

Published: 08 May 2018

CLC number:

TH16

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	Articles by authors
	LI Jishuai
	QI Wenjun
	LI Yajiang
	LI Xiaohui
	WANG Pei
	LIU Jianye

Cite this article:

LI Jishuai,QI Wenjun,LI Yajiang, et al. Influence of Process Parameters of Forming Characteristics on Ti-6Al-4V Fabricated by Selective Laser Melting[J]. Materials Reports, 2017, 31(10): 62-69.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.010.014 OR http://www.mater-rep.com/EN/Y2017/V31/I10/62

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