Proposal for Load Adaptive Design of Microlattice Structures Suitable for PBF-LB/M Manufacturing

DS 116: Proceedings of the DESIGN2022 17th International Design Conference

Year: 2022
Editor: Mario Štorga, Stanko Škec, Tomislav Martinec, Dorian Marjanović
Author: Alexander Seidler (1), Stefan Holtzhausen (1), Hannes Korn (2), Peter Koch (1), Kristin Paetzold (1), Bernhard M
Series: DESIGN
Institution: 1: Technische Universit
Section: Design for Additive Manufacturing
Page(s): 1461-1470
DOI number: https://doi.org/10.1017/pds.2022.148
ISSN: 2732-527X (Online)

Abstract

In this paper, a proposal for a new method to design load-adaptive microlattice structures for PBF-LB/M manufacturing is presented. For this purpose, a method was developed to stiffen microlattice structures in particular by using self-similar sub-cells to ensure their manufacturability. The quality of the stiffness increase was investigated and verified by finite element simulations. Subsequently, the simulation results were critically discussed with respect to their potential for future design processes for architected materials.

Keywords: architected materials, 3D printing, additive manufacturing, lattice sctructures, design methods