Analysis of Characteristics Comparison between New Brake Lining and 100-hour Flight Cessna 208B
Indreswari Suroso1, Triyono2, Eko Surojo3, and Heru Sukanto4

Mechanical Engineering Department, 57126, Universitas Sebelas Maret, Jl. Ir. Sutami 36 Kentingan, Surakarta, Jawa Tengah, Indonesia

Abstract

Brake lining is part of the brake system that creates the friction needed in the braking process. The purpose of this study was to compare the characteristics of the new brake lining with the brake lining with 100 flight hours. The method used was experimental with chemical composition, hardness, and wear testing. The test results showed that the results of the chemical composition test of the new brake lining material, Cleveland brand type 66-033 metallic, consisted of 77.489% Cu- 15.81% Fe- 6.047% Si- 0.305% Mn- 0.34% Ni. Meanwhile, after being used for 100 flight hours, it changed to 95.9% Fe, 0.33% C, 0.8% Cu, 0.235% Si, 0.468% Mn, 0.235% Al, 0.151% Mo, and 0.774% Cr. The brake lining used for 100 flight hours has been contaminated with Al, Si, Mo, Cr, and C. The hardness of the brake lining after 100 flight hours is 207 HB compared to the hardness of the new brake lining 79.65 HB. This increase in hardness is caused by overheating, contamination of lubricant elements, and rapid cooling process after braking. The difference in average wear between the brake lining used for 100 flight hours and the new brake lining is small, namely 0.000038 mm3/kg.m. Routine maintenance plays an important role in maintaining the performance of the brake lining and the brake system so that they function efficiently and prevent excessive wear.

Keywords: brake lining- brake system- chemical composition- hardness- wear

Topic: Material Physics