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Durability Characteristics Analysis of Plastic Worm Wheel with Glass Fiber Reinforced Polyamide
Molds & Dies Technology R&D Group, Korea Institute of Industrial Technology, 7-47, Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea
Division of Mechanical System Engineering, University of Incheon, 12-1, Songdo-dong, Yeonsu-gu, Incheon 406-772, Korea
* Author to whom correspondence should be addressed.
Received: 28 February 2013; in revised form: 6 April 2013 / Accepted: 27 April 2013 / Published: 10 May 2013
Abstract: Plastic worm wheel is widely used in the vehicle manufacturing field because it is favorable for weight lightening, vibration and noise reduction, as well as corrosion resistance. However, it is very difficult for general plastics to secure the mechanical properties that are required for vehicle gears. If the plastic resin is reinforced by glass fiber in the fabrication process of plastic worm wheel, it is possible to achieve the mechanical properties of metallic material levels. In this study, the mechanical characteristic analysis of the glass-reinforced plastic worm wheel, according to the contents of glass fiber, is performed by analytic and experimental methods. In the case of the glass fiber-reinforced resin, the orientation and contents of glass fibers can influence the mechanical properties. For the characteristic prediction of plastic worm wheel, computer-aided engineering (CAE) analysis processes such as structural and injection molding analysis were executed with the polyamide resin reinforcement glass fiber (25 wt %, 50 wt %). The injection mold for fabricating the prototype plastic worm wheel was designed and made to reflect the CAE analysis results. Finally, the durability of prototype plastic worm wheel fabricated by the injection molding process was evaluated by the experimental method and the characteristics according to the glass fiber contents.
Keywords: glass fiber-reinforced plastic; plastic gear; durability test; injection molding
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Kim, G.-H.; Lee, J.-W.; Seo, T.-I. Durability Characteristics Analysis of Plastic Worm Wheel with Glass Fiber Reinforced Polyamide. Materials 2013, 6, 1873-1890.
Kim G-H, Lee J-W, Seo T-I. Durability Characteristics Analysis of Plastic Worm Wheel with Glass Fiber Reinforced Polyamide. Materials. 2013; 6(5):1873-1890.
Kim, Gun-Hee; Lee, Jeong-Won; Seo, Tae-Il. 2013. "Durability Characteristics Analysis of Plastic Worm Wheel with Glass Fiber Reinforced Polyamide." Materials 6, no. 5: 1873-1890.