Mechanical Testing of Additive Manufactured Metal Parts

Author:

Merklein Marion1,Plettke Raoul1,Junker Daniel1,Schaub Adam1,Ahuja Bhrigu2

Affiliation:

1. Friedrich-Alexander-Universität Erlangen-Nürnberg

2. Friedrich-Alexader-Universität Erlangen-Nürnberg

Abstract

The quality of additive manufactured parts however depends pretty much on the workers experience to control porosity, layer linkage and surface roughness. To analyze the robustness of the Laser Beam Melting (LBM) process a Round Robin test was made in which specimens from four institutes from different countries were tested and compared. For the tests each institute built a set of specimens out of stainless steel 1.4540. The aim of this work is to analyze the influence of the process parameters on the mechanical properties. The results show that there is a high potential for additive manufacturing but also a lot of further research is necessary to optimize this technology.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference5 articles.

1. A. Simchi, Direct laser sintering of metal powders: mechanism kinetics and microstructural features, Materials Science and Engineering 428(2006)1, p.148 – 158.

2. S. Das, Physical aspects of process control in selective laser sintering of metals, Advanced Engineering materials (2003), p.701 – 711.

3. S. H. L. a. S. N. Dadbakhsh, Effect of selective laser melting layout on the quality of stainless steel parts, Rapid Prototyping Journal, 18(2012)3, p.241 – 249.

4. DIN EN ISO 6892-1: Metallic materials - Tensile testing - Part 1: Method of test at room temperature, (2014).

5. EOS Material data sheet: EOS StainlessSteel PH1 for EOSINT M 270, (2008).

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