The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

Year 2020, , 755 - 761, 01.09.2020

Bekir Güney , İbrahim Mutlu , Hanifi Küçüksarıyıldız

https://doi.org/10.2339/politeknik.563277

Cited By: 5

Abstract

The movement of moving devices or machines in terms of safety
perspective must be controlled. In modern vehicle applications, braking is
closely related to safety. Slowing or breaking the movements of vehicles safely
is the task of braking mechanisms. The most important components of these mechanisms
are the disc and brake lining pairs. Brake discs are made of lamella graphite
cast iron. During the braking, the kinetic energy of the vehicle is converted
into the heat energy through friction. The braking elements are subject to very
heavy thermo mechanical conditions under heat, speed and load. The friction and
wear properties of the brake disc must be thermally more stable against the
heat energy generated on it in order to maintain stability. In this study,
mechanical properties of the brake discs, which the disc surface was coated
with flame spraying and melting, were improved. In addition, microstructure,
abrasion, hardness and surface roughness tests of the brake disc were
conducted. As a result, the coated disc showed superior mechanical properties
compared to the original disc.

Keywords

Brake discs, coating methods, flame spraying, wear

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