Lightweight Plastic Gear Body using Gyroid Structure for Additive Manufacturing
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Mechanical Engineering, HoChiMinh City University of Technology (HCMUT)- VNUHCM, Viet Nam
Submission date: 2022-10-20
Final revision date: 2022-11-30
Acceptance date: 2022-12-02
Online publication date: 2022-12-06
Publication date: 2022-12-22
Corresponding author
Loc Huu Nguyen   

Mechanical Engineering, HoChiMinh City University of Technology (HCMUT)- VNUHCM, 268 Ly Thuong Kiet, Dít 10, HoChiMinh City, 700000, Ho Chi Minh City, Viet Nam
Journal of Machine Engineering 2022;22(4):21-42
The Triply Periodic Minimal Surfaces (TPMS) structure can optimize the design to reduce weight. Currently, the fabrication of gears with complex internal structures such as TPMS is possible thanks to additive manufacturing. This study investigates the mechanical properties of a TPMS structure when applied to Polyetheretherketone (PEEK) plastic gears. The research content includes displacement, deformation, and Von-mises stress intending to evaluate the stiffness and strength of gears. The structure used to optimize the gear mass is the Gyroid structure, and to apply the Gyroid structure to optimize mass while ensuring gear performance. This study also provides a mass lean process for gear designers. It uses design of experiments methods to choose a suitable topology structure, and the final research result is a regression equation, which clearly shows the close relationship between the volume reduction and displacement with the specified control variables of the unit cell.
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