Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology

The components with lattice structure as filling unit have great application potential in aerospace and other fields. The failure of the lattice structure directly affects the functional characteristics of the parts filled with the lattice structure. Aiming at the problem that it is difficult to eva...

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Autores principales:	Liming Wu, Ning Dai, Hongtao Wang
Formato:	article
Lenguaje:	EN
Publicado:	AIMS Press 2021
Materias:	additive manufacturing bcc lattice structure skeleton extraction l1 median value rods deformation deformation detection Biotechnology TP248.13-248.65 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/02a38cae64354ab7a3f8cd6132bbb3ca
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id	oai:doaj.org-article:02a38cae64354ab7a3f8cd6132bbb3ca
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spelling	oai:doaj.org-article:02a38cae64354ab7a3f8cd6132bbb3ca2021-11-23T02:19:23ZEvaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology10.3934/mbe.20213721551-0018https://doaj.org/article/02a38cae64354ab7a3f8cd6132bbb3ca2021-09-01T00:00:00Zhttps://www.aimspress.com/article/doi/10.3934/mbe.2021372?viewType=HTMLhttps://doaj.org/toc/1551-0018The components with lattice structure as filling unit have great application potential in aerospace and other fields. The failure of the lattice structure directly affects the functional characteristics of the parts filled with the lattice structure. Aiming at the problem that it is difficult to evaluate the deformation degree of metal lattice structure after mechanical loading in additive manufacturing, firstly, the point cloud model of lattice structure is obtained by using CT scanning and three-dimensional reconstruction, and then the skeleton of lattice structure is automatically extracted based on ${L_1}$ median algorithm. Finally, the deformation angle of rods is measured to evaluate the degree of deformation and damage of parts. In this paper, the deformation evaluation of the rods of the BCC lattice is discussed. The experimental results show that the proposed skeleton extraction technology achieves the evaluation of lattice structure deformation. The experimental model is extended to BCC lattice structure with unit cell number of $n \times n \times n$. When the ratio of the rods with more than 40% severe deformation to all rods in the lattice structure reaches $(2n - 1)/2{n^2}$ it indicates that the lattice structure has undergone a large degree of deformation and should not continue to serve.Liming WuNing Dai Hongtao WangAIMS Pressarticleadditive manufacturingbcc lattice structureskeleton extractionl1 median valuerods deformationdeformation detectionBiotechnologyTP248.13-248.65MathematicsQA1-939ENMathematical Biosciences and Engineering, Vol 18, Iss 6, Pp 7525-7538 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additive manufacturing bcc lattice structure skeleton extraction l1 median value rods deformation deformation detection Biotechnology TP248.13-248.65 Mathematics QA1-939
spellingShingle	additive manufacturing bcc lattice structure skeleton extraction l1 median value rods deformation deformation detection Biotechnology TP248.13-248.65 Mathematics QA1-939 Liming Wu Ning Dai Hongtao Wang Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
description	The components with lattice structure as filling unit have great application potential in aerospace and other fields. The failure of the lattice structure directly affects the functional characteristics of the parts filled with the lattice structure. Aiming at the problem that it is difficult to evaluate the deformation degree of metal lattice structure after mechanical loading in additive manufacturing, firstly, the point cloud model of lattice structure is obtained by using CT scanning and three-dimensional reconstruction, and then the skeleton of lattice structure is automatically extracted based on ${L_1}$ median algorithm. Finally, the deformation angle of rods is measured to evaluate the degree of deformation and damage of parts. In this paper, the deformation evaluation of the rods of the BCC lattice is discussed. The experimental results show that the proposed skeleton extraction technology achieves the evaluation of lattice structure deformation. The experimental model is extended to BCC lattice structure with unit cell number of $n \times n \times n$. When the ratio of the rods with more than 40% severe deformation to all rods in the lattice structure reaches $(2n - 1)/2{n^2}$ it indicates that the lattice structure has undergone a large degree of deformation and should not continue to serve.
format	article
author	Liming Wu Ning Dai Hongtao Wang
author_facet	Liming Wu Ning Dai Hongtao Wang
author_sort	Liming Wu
title	Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
title_short	Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
title_full	Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
title_fullStr	Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
title_full_unstemmed	Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
title_sort	evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology
publisher	AIMS Press
publishDate	2021
url	https://doaj.org/article/02a38cae64354ab7a3f8cd6132bbb3ca
work_keys_str_mv	AT limingwu evaluationofrodsdeformationofmetallatticestructureinadditivemanufacturingbasedonskeletonextractiontechnology AT ningdai evaluationofrodsdeformationofmetallatticestructureinadditivemanufacturingbasedonskeletonextractiontechnology AT hongtaowang evaluationofrodsdeformationofmetallatticestructureinadditivemanufacturingbasedonskeletonextractiontechnology
_version_	1718417357983973376

Evaluation of rods deformation of metal lattice structure in additive manufacturing based on skeleton extraction technology

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