AlSi10Mg in Powder Bed Fusion with Laser Beam: An Old and Boring Material?

Rasch M, Bartels D, Sun S, Schmidt M (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Materials MDPI

Book Volume: 15

Journal Issue: 16

DOI: 10.3390/ma15165651

Abstract

Powder bed fusion with laser beam of metals (PBF-LB/M) is a widely used technology to produce parts with a high freedom in design paired with excellent mechanical properties. The casting alloy AlSi10Mg features a wide process window and a microstructure with excellent mechanical properties which are not obtainable through conventional manufacturing. One possibility for achieving this is by influencing the solidification which then directly affects the local part properties. In this study, the effect of different laser beam profiles with gaussian and top-hat intensity distributions, as well as the influence of varying parameter sets on the microstructure and microhardness within the same specimen, was examined. A test specimen consisting of many small cubes was built with different parameters. It was found that the local properties can be varied in a wide range. Build-height-dependent in-situ aging effects can thereby be exploited for tailoring the local material properties. Thus, an extra degree of freedom is added to the design of additively manufactured parts.

Authors with CRIS profile

Michael Rasch Lehrstuhl für Photonische Technologien Dominic Bartels Lehrstuhl für Photonische Technologien Michael Schmidt Lehrstuhl für Photonische Technologien

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies

Related research project(s)

Selective laser beam melting of composite material for lightweight structures (A5) (SFB 814 (A5)) CRC 814 - Additive Manufacturing (SFB 814) July 1, 2011 - June 30, 2023

Involved external institutions

Griffith University AU Australia (AU)

How to cite

APA:

Rasch, M., Bartels, D., Sun, S., & Schmidt, M. (2022). AlSi10Mg in Powder Bed Fusion with Laser Beam: An Old and Boring Material? Materials, 15(16). https://doi.org/10.3390/ma15165651

MLA:

Rasch, Michael, et al. "AlSi10Mg in Powder Bed Fusion with Laser Beam: An Old and Boring Material?" Materials 15.16 (2022).

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