Manufacturing and Characterization of Ti6Al4V Lattice Components Manufactured by Selective Laser Melting

被引：103
作者：
Campanelli, Sabina L. [1 ]
Contuzzi, Nicola [1 ]
Ludovico, Antonio D. [1 ]
Caiazzo, Fabrizia [2 ]
Cardaropoli, Francesco [2 ]
Sergi, Vincenzo [2 ]
机构：
[1] Politecn Bari, Dip Meccan Matemat & Management, I-70126 Bari, Italy
[2] Univ Salerno, Dip Ingn Ind, I-84084 Fisciano, SA, Italy
来源：
MATERIALS | 2014年 / 7卷 / 06期
关键词：
Ti6Al4V titanium alloy; selective laser melting; micro-lattice structures; tailored porosity; characterization; MECHANICAL-PROPERTIES; COMPRESSIVE BEHAVIOR; ALUMINUM HONEYCOMB; ALLOY; IMPLANT; FABRICATION; TOPOLOGY;
D O I：
10.3390/ma7064803
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The paper investigates the fabrication of Selective Laser Melting (SLM) titanium alloy Ti6Al4V micro-lattice structures for the production of lightweight components. Specifically, the pillar textile unit cell is used as base lattice structure and alternative lattice topologies including reinforcing vertical bars are also considered. Detailed characterizations of dimensional accuracy, surface roughness, and micro-hardness are performed. In addition, compression tests are carried out in order to evaluate the mechanical strength and the energy absorbed per unit mass of the lattice truss specimens made by SLM. The built structures have a relative density ranging between 0.2234 and 0.5822. An optimization procedure is implemented via the method of Taguchi to identify the optimal geometric configuration which maximizes peak strength and energy absorbed per unit mass.
引用
收藏
页码：4803 / 4822
页数：20
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