LAUSR

Lightweight materials improve the fuel efficiency and carbon emissions of vehicles. The purpose of this study is to develop a light-weight, injectable, high-stiffness plastic composite material to replace aluminum in the housing of the speed reducer of a car chassis. The material was tested computationally and experimentally by analyzing the physical properties of specimens with different amounts of reinforcement in the base materials. POM, PA, PEI, PES, PPS and PPA were used as the base materials, while Glass fiber (GF) and Carbon fiber (CF) were used as reinforcement material. The computations were carried out using Moldflow insight software to simulate the injection molding process. The volumetric shrinkage and shear rate of the PA66+GF70 % specimen were 5.3 % and 2985.25 1/s, respectively. The mold material must withstand this shear rate. This sample had the most suitable properties, and the tensile strength, elongation, flexural strength, and thermal expansion coefficient were 312.15 MPa, 1.5 %, 329.2 MPa and 0.022 (10-5/°C), respectively. As a result of this study, a patent was received for this lightweight material technology.