The effect of SLM process parameters on density, hardness, tensile strength and surface quality of Ti-6Al-4V

被引：224

作者：

Khorasani, AmirMahyar ^{[1
,2
]}

Gibson, Ian ^{[4
]}

Awan, Umar Shafique ^{[1
]}

Ghaderi, Alireza ^{[3
]}

机构：

[1] Deakin Univ, Sch Engn, Waurn Ponds, Vic, Australia

[2] Univ Twente, Fac Engn Technol, Dept Mech Solids Surfaces & Syst, Enschede, Netherlands

[3] Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic, Australia

[4] Univ Twente, Dept Design Prod & Management, Fraunhofer Ctr Complex Syst Engn, Enschede, Netherlands

来源：

ADDITIVE MANUFACTURING | 2019年 / 25卷

关键词：

Additive manufacturing; Hardness; Interaction plots; Relative density; Selective laser melting; LASER MELTING PROCESS; MECHANICAL-PROPERTIES; ALLOY; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1016/j.addma.2018.09.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we printed Ti-6Al-4V SLM parts based on Taguchi design of experiment and related standards to measure and compare hardness with different mechanical properties that were obtained in our previous research such as density, strength, elongation, and average surface. Then the effect of process parameters comprising laser power, scan speed, hatch space, laser pattern angle coupling, along with heat treatment as a post-process, in relation to hardness was analysed. The relation of measured factors with each other was also studied and related mechanisms were discussed in depth. The original contribution in this paper is in producing a large and precise dataset and the comparison with mechanical properties. Another contribution is related to the analysis of process parameters in relation to hardness and explaining them by rheological phenomena. The results showed an interesting similarity between hardness and density which is highly related to the formation of the melting pool and porosities within the process.

引用

页码：176 / 186

页数：11

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