Yang, Tao, Xie, Deqiao, Yue, Wenchao, Wang, Shuang, Rong, Peng, Shen, Lida, Zhao, Jianfeng and Wang, Changjiang (2019) Distortion of thin-walled structure fabricated by selective laser melting based on assumption of constraining force-induced distortion. Metals, 9 (12). pp. 1-11. ISSN 2075-4701

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Abstract

Metal additive manufacturing has shown great potential in aerospace, medical, and automobile industries; however, distortion of metal part has been an obstacle in widespread application of metal additive manufacturing. The mechanism of thin-walled structure distortion remains unrevealed. In this study, the origin of distortion of thin-walled structure was discussed, based on the previously proposed assumption of constraining force-induced distortion. The relation between the microstructure and macro-distortion has been linked via the constraining force. The influence of scan directions and structure sizes on the distortion was also studied, and the approaches to decrease the thin-walled structure were discussed. Use of the alternant scan strategy has been validated as an effective approach if the structure sizes cannot be adjusted.

Item Type:	Article
Keywords:	distortion; thin-walled structure; selective laser melting; constraining force; additive manufacturing
Schools and Departments:	School of Engineering and Informatics > Engineering and Design
Research Centres and Groups:	Dynamics, Control and Vehicle Research Group
Subjects:	T Technology T Technology > TA Engineering (General). Civil engineering (General) > TA0401 Materials of engineering and construction. Mechanics of materials
Depositing User:	Chang Wang
Date Deposited:	06 Dec 2019 08:28
Last Modified:	06 Dec 2019 08:30
URI:	http://sro.sussex.ac.uk/id/eprint/88606

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