Pembuatan dan Analisa Sifat Mekanik Kampas Rem Berbahan Komposit Serbuk Aluminium dan Serbuk Tempurung Kelapa dengan Matriks Resin Epoksi

Abstract

In the braking system, brake lining is a component that directly rubs against the rotating parts, namely the drum (drum system) or disk (disc system). The purpose of this research is to analyze the effect of variations in the composition of coconut shell powder, aluminum powder with epoxy resin matrix and the effect of compaction pressure on the mechanical properties (hardness and wear rate) and microstructure of motorcycle brake lining samples and determine the optimal composition and compaction pressure for making non-asbestos motorcycle brake lining. The research consisted of several stages, including screening of materials (coconut shell powder and aluminum powder) with a mesh 50 sieve opening 297 μm, weighing materials with digital scales, mixing materials with horizontal ball milling for 2 hours at a speed of 300 rpm, mixing materials with epoxy resin and stirring using a stirring spatula for 5 minutes, then pressing (compacting) 2 tons and 3 tons for 15 minutes, then green compact specimens were sintered at 175⁰C for 30 minutes with an electric muffle furnace. Tests include hardness (brinell), wear test with pin on disk method, and microstructure. The results of this study show that the more coconut shell powder and the less aluminum powder, the higher the hardness value of the brake lining sample and the lower the wear value. The optimal composition and compression pressure of the brake lining sample is the composition of 50% coconut shell powder, 10% aluminum powder, 40% epoxy resin, 3 tons of compression pressure with a hardness value of 36.81 BHN and a wear rate of 0.30 x 10-5 gr/mm2