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A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies

1
Dae-Gyeong Division, Korea Institute of Industrial Technology, Daegu 42994, Korea
2
Department of Nanomechatronics Engineering, Pusan National University, Pusan 46241, Korea
*
Authors to whom correspondence should be addressed.
This author equally contributed to this work as corresponding author.
Academic Editor: Ana Pilar Valerga Puerta
Materials 2022, 15(1), 70; https://doi.org/10.3390/ma15010070
Received: 21 October 2021 / Revised: 17 December 2021 / Accepted: 18 December 2021 / Published: 22 December 2021
In metal product manufacturing, additive manufacturing (AM) is a method that has the advantage of fabricating complex shapes and customized production, unlike existing machining methods. However, owing to the characteristics of the AM process, anisotropy of macrostructure occurs because of various causes such as the scan direction, melting, fusion, and cooling of the powdered material. The macrostructure anisotropy is realized from the scan direction, and when a single layer is stacked in one direction, it is expressed as orthogonal anisotropy. Here, the classical lamination theory is applied to simply calculate the individual orthotropic layers by superimposing them. Through this, the authors analyzed whether the mechanical properties of the product are isotropically expressed with a periodic layer rotation strategy. To determine if the mechanical properties can be reasonably considered to be isotropic, a shock absorber mount for a vehicle was manufactured by AM. The tensile and vibration test performed on the product was compared with the finite element analysis and experimental results. As a result of the comparison, it was confirmed that the macroscopically of the product was considered isotropic as the load-displacement diagram and the fracture location coincided, as well as the natural frequency and mode shape. View Full-Text
Keywords: additive manufacturing; periodic layer rotation; finite elements analysis; scan strategy; isotropy verification additive manufacturing; periodic layer rotation; finite elements analysis; scan strategy; isotropy verification
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MDPI and ACS Style

Yang, M.-S.; Kang, J.-H.; Kim, J.-W.; Kim, K.-W.; Kim, D.-H.; Sung, J.-H.; Ko, D.-C.; Lee, J.-W. A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies. Materials 2022, 15, 70. https://doi.org/10.3390/ma15010070

AMA Style

Yang M-S, Kang J-H, Kim J-W, Kim K-W, Kim D-H, Sung J-H, Ko D-C, Lee J-W. A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies. Materials. 2022; 15(1):70. https://doi.org/10.3390/ma15010070

Chicago/Turabian Style

Yang, Min-Seok, Ji-Heon Kang, Ji-Wook Kim, Kun-Woo Kim, Da-Hye Kim, Ji-Hyun Sung, Dae-Cheol Ko, and Jae-Wook Lee. 2022. "A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies" Materials 15, no. 1: 70. https://doi.org/10.3390/ma15010070

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