Durability Characteristics Analysis of Plastic Worm Wheel with Glass Fiber Reinforced Polyamide

Area of Science:

• Materials Science
• Mechanical Engineering
• Automotive Engineering

Background:

• Plastic worm wheels offer advantages in automotive manufacturing, including weight reduction and corrosion resistance.
• General plastics lack the necessary mechanical properties for demanding vehicle gear applications.
• Glass fiber reinforcement is a potential solution to enhance the mechanical performance of plastic gears.

Purpose of the Study:

• To analyze the mechanical characteristics of glass-reinforced plastic worm wheels based on varying glass fiber content.
• To evaluate the feasibility of using glass-reinforced polyamide resin for automotive worm gears.

Main Methods:

• Computer-Aided Engineering (CAE) analysis, including structural and injection molding simulations, was performed.
• Prototypes were fabricated using injection molding based on CAE results.
• Experimental methods were employed to evaluate the mechanical properties and durability of the fabricated worm wheels.

Main Results:

• The study investigated polyamide resin reinforced with glass fiber at 25 wt% and 50 wt%.
• Both analytical and experimental results demonstrated that glass fiber content significantly influences mechanical properties.
• The fabricated glass-reinforced plastic worm wheels showed promising characteristics for automotive applications.

Conclusions:

• Glass fiber reinforcement can significantly improve the mechanical properties of plastic worm wheels, enabling their use in automotive gears.
• The study successfully correlated analytical predictions with experimental findings for glass-reinforced plastic worm wheels.
• Further research can optimize glass fiber content and orientation for enhanced gear performance and durability.