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Development of a tree-support software module for PBF-LB/M
Publikationstyp
Conference Paper
Date Issued
2023
Sprache
English
Author(s)
Citation
Lasers in Manufacturing Conference (2023)
Contribution to Conference
By combining simulation and generative design, a software tool was developed that generates individual support
structures in the form of trees. The objective is that even users with little experience can manufacture components with
efficient support structures using PBF-LB/M. The key element of the method is the use of tree structures whose shape is
generated by algorithmic, biological growth using botanical methods. Topology optimization, which has already proven
itself in the design of optimal support structures, was used to optimize the support structures of three benchmark parts.
The generated trees were then compared to commercially available tree-like supports and block supports using Finite
element analysis to simulate the PBF-LB/M process. The simulation also included a stress relief heat treatment and the
removal of the part from build plate and supports. Based on the knowledge gained from the numerical assessment of the
generated tree supports, the created tool allows the user to generate highly material-usage efficient supports with block
support-comparable capabilities without requiring any previous experience of the subject.
structures in the form of trees. The objective is that even users with little experience can manufacture components with
efficient support structures using PBF-LB/M. The key element of the method is the use of tree structures whose shape is
generated by algorithmic, biological growth using botanical methods. Topology optimization, which has already proven
itself in the design of optimal support structures, was used to optimize the support structures of three benchmark parts.
The generated trees were then compared to commercially available tree-like supports and block supports using Finite
element analysis to simulate the PBF-LB/M process. The simulation also included a stress relief heat treatment and the
removal of the part from build plate and supports. Based on the knowledge gained from the numerical assessment of the
generated tree supports, the created tool allows the user to generate highly material-usage efficient supports with block
support-comparable capabilities without requiring any previous experience of the subject.
Subjects
Support structure
Additive manufacturing
Waste reduction
Generative design
Tree support
PBF-LB/M
DDC Class
621: Applied Physics
600: Technology