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GEOMETRICAL BENCHMARKING OF LASER POWDER BED FUSION SYSTEMS BASED ON DESIGNER NEEDS

Published online by Cambridge University Press:  27 July 2021

Joaquin Montero ,
Sebastian Weber ,
Christoph Petroll ,
Stefan Brenner ,
Matthias Bleckmann ,
Kristin Paetzold  and
Vesna Nedeljkovic-Groha
Joaquin Montero*
Affiliation:
University of the Bundeswehr Munich Bundeswehr Research Institute for Materials, Fuels and Lubricants (WIWeB)
Sebastian Weber
Affiliation:
University of the Bundeswehr Munich Bundeswehr Research Institute for Materials, Fuels and Lubricants (WIWeB)
Christoph Petroll
Affiliation:
Bundeswehr Research Institute for Materials, Fuels and Lubricants (WIWeB)
Stefan Brenner
Affiliation:
University of the Bundeswehr Munich
Matthias Bleckmann
Affiliation:
Bundeswehr Research Institute for Materials, Fuels and Lubricants (WIWeB)
Kristin Paetzold
Affiliation:
University of the Bundeswehr Munich
Vesna Nedeljkovic-Groha
Affiliation:
University of the Bundeswehr Munich
*
Montero, Joaquin, University of the Bundeswehr Munich, Institute for Technical Product Development, Germany, j.montero@unibw.de

Abstract

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Commercially available metal Laser Powder Bed Fusion (L-PBF) systems are steadily evolving. Thus, design limitations narrow and the diversity of achievable geometries widens. This progress leads researchers to create innovative benchmarks to understand the new system capabilities. Thereby, designers can update their knowledge base in design for additive manufacturing (DfAM). To date, there are plenty of geometrical benchmarks that seek to develop generic test artefacts. Still, they are often complex to measure, and the information they deliver may not be relevant to some designers. This article proposes a geometrical benchmarking approach for metal L-PBF systems based on the designer needs. Furthermore, Geometric Dimensioning and Tolerancing (GD&T) characteristics enhance the approach. A practical use-case is presented, consisting of developing, manufacturing, and measuring a meaningful and straightforward geometric test artefact. Moreover, optical measuring systems are used to create a tailored uncertainty map for benchmarking two different L-PBF systems.

Keywords

3D printingAdditive ManufacturingDesign for Additive Manufacturing (DfAM)Laser Powder Bed FusionGeometrical Benchmarking
Type
Article
Information
Proceedings of the Design Society , Volume 1: ICED21 , August 2021 , pp. 1657 - 1666
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.
Copyright
The Author(s), 2021. Published by Cambridge University Press

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