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Distortion of thin-walled structure fabricated by selective laser melting based on assumption of constraining force-induced distortion

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posted on 2023-06-09, 19:52 authored by Tao Yang, Deqiao Xie, Wenchao Yue, Shuang Wang, Peng Rong, Lida Shen, Jianfeng Zhao, Chang WangChang Wang
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.

History

Publication status

  • Published

File Version

  • Published version

Journal

Metals

ISSN

2075-4701

Publisher

MDPI

Issue

12

Volume

9

Page range

1-11

Department affiliated with

  • Engineering and Design Publications

Research groups affiliated with

  • Dynamics, Control and Vehicle Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-12-06

First Open Access (FOA) Date

2019-12-06

First Compliant Deposit (FCD) Date

2019-12-06

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