CLC number: TH164; TG665
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2018-12-06
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Rubn Paz, Mario D. Monzn, Philippe Bertrand, Alexey Sova. Comparison of different cellular structures for the design of selective laser melting parts through the application of a new lightweight parametric optimisation method[J]. Journal of Zhejiang University Science A, 2019, 20(2): 117-132.
@article{title="Comparison of different cellular structures for the design of selective laser melting parts through the application of a new lightweight parametric optimisation method",
author="Rubn Paz, Mario D. Monzn, Philippe Bertrand, Alexey Sova",
journal="Journal of Zhejiang University Science A",
volume="20",
number="2",
pages="117-132",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1800422"
}
%0 Journal Article
%T Comparison of different cellular structures for the design of selective laser melting parts through the application of a new lightweight parametric optimisation method
%A Rubn Paz
%A Mario D. Monzn
%A Philippe Bertrand
%A Alexey Sova
%J Journal of Zhejiang University SCIENCE A
%V 20
%N 2
%P 117-132
%@ 1673-565X
%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1800422
TY - JOUR
T1 - Comparison of different cellular structures for the design of selective laser melting parts through the application of a new lightweight parametric optimisation method
A1 - Rubn Paz
A1 - Mario D. Monzn
A1 - Philippe Bertrand
A1 - Alexey Sova
J0 - Journal of Zhejiang University Science A
VL - 20
IS - 2
SP - 117
EP - 132
%@ 1673-565X
Y1 - 2019
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1800422
Abstract: Interest in lightweight geometries and cellular structures has increased due to the freeform capabilities of additive manufacturing technologies. In this paper, six different cellular structures were designed and parameterised with three design variables to carry out the lightweight optimisation of an initial solid sample. According to the limitations of conventional computer-aided design (CAD) software, a new parametric optimisation method was implemented and used to optimise these six types of structures. The best one in terms of optimisation time and stiffness was parameterised with nine design variables, changing the dimensions of the internal cellular structure and the reinforcement zones. These seven optimised geometries were manufactured in a Phenix ProX200 selective laser melting machine without using support. The samples obtained were tested under flexural load. The results show that the cubic cell structures have some advantages in terms of CAD definition, parameterisation and optimisation time because of their simpler geometry. However, from the flexural test results it can be concluded that this type of cell structure and those with horizontal bars experience a loss of stiffness compared to the estimates of the finite element analysis because of imperfections in the manufacturing process of hanging structures.
The paper deals with the optimization of cellular structures be produced through the Selective Laser Melting (SLM) technique. The subject of the paper is very interesting, since the use of optimization methodologies for the design of parts which can be produced through Additive Manufacturing (AM) is a current subject of research among universities and industries. Moreover, cellular structures permit for lightweight design, which is currently of utmost interests.
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