2020
DOI: 10.1080/17452759.2020.1756086
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Automatic generation of alternative build orientations for laser powder bed fusion based on facet clustering

Abstract: In this paper, a novel facet clustering based method is proposed to generate alternative build orientations for laser powder bed fusion. This method consists of two steps. First, a hierarchical clustering algorithm is applied to divide facets of the design model in standard tessellation language format into different clusters, each of which shares a similar normal vector. Second, alternatives of each cluster are computed and the final set of alternative build orientations is generated by combining and refining… Show more

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Cited by 30 publications
(27 citation statements)
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References 78 publications
(196 reference statements)
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“…This method adopts the two-step strategy to determine the build orientation of an LPBF part. The first step is completed using the method of Qin et al (2020b), while the second step is realised by an automatic selection approach based on multi-objective decisionmaking. Compared to the existing one-step methods, the proposed method can provide desired efficiency, since it does not need to spend time on a large number of meaningless orientations.…”
Section: Importance Of the Proposed Methodsmentioning
confidence: 99%
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“…This method adopts the two-step strategy to determine the build orientation of an LPBF part. The first step is completed using the method of Qin et al (2020b), while the second step is realised by an automatic selection approach based on multi-objective decisionmaking. Compared to the existing one-step methods, the proposed method can provide desired efficiency, since it does not need to spend time on a large number of meaningless orientations.…”
Section: Importance Of the Proposed Methodsmentioning
confidence: 99%
“…This method consists of an alternative orientation generation step and an optimal orientation selection step. In the former step, a small number of alternative orientations of an LPBF part are automatically generated by the method of Qin et al (2020b). The objective of the latter step is to select an orientation from the generated alternatives that can simultaneously optimise the considered factors.…”
Section: Details Of the Proposed Methodsmentioning
confidence: 99%
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