A COMPARATIVE STUDY OF BRAKE WEAR PERFORMANCE WITH RECENT COATING METHODS

Year 2022, Volume: 5 Issue: 2, 101 - 106, 31.12.2022

Recep Akyüz , Ekrem Altuncu , Çiğdem Dindar , Hakan Aydın

Abstract

With the increase in the environmental awareness of the societies around the world and the increase in technological opportunities, the expectations from the brake discs used in vehicles are increasing day by day. In addition to this, studies are being carried out on the legal regulations that are expected to be implemented in Europe and America in the near future, limiting the particles released from the brake system. Gray cast iron-based brake discs are safe and economical parts that are exposed to high wear and corrosion in the face of increasing vehicle speeds and road conditions. Trends and developments in electric vehicles; weight reduction, higher wear and corrosion resistance, lower replacement costs, and minimum brake dust are desired without loss of brake performance on the new generation brake discs. Hard coat implementation on the rubbing surface of the brake disc is a promising solution that is being studied by brake system developers. Within the scope of this experimental study, stainless-steel coating by laser cladding and ferritic nitrocarburizing (FNC) processes were separately applied to the rubbing surface of the cast iron brake discs. The same cycle dynamometer tests carried out with the normal and coated brake discs and a standard type of OEM pads. Braking and friction performance findings are presented comparatively.

Keywords

BRAKE DISC, LASER COATING, FNC, BRAKE WEAR, STAINLESS STEEL

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