ISSN (0970-2083)

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Review Article Open Access

A STUDY OF BRAKING MATERIALS, THEIR TESTING AND ANALYSIS

Abstract

Braking is normally achieved by friction between the disc and pad. Friction materials are complex mix of fibres, modifiers, additives, fillers, and a binder resin which holds them together and are composed of between 5 and 20 elements in the composition. Each element has its own function and changing any element or its weight percentage of the friction material properties will change. Brake performance is limited by wear and friction. Understanding the wear mechanism will help us to develop the competency in the design and development of the brake disc and pads. Generally the disc brakes and are made up of cast iron and the brake pads are made up of asbestos material. Asbestos pads are very highly used because they deal with very high temperature. But the health effects of asbestos are dangerous. Due to the health related problems as well as the better performance quality the brake pads are replaced by semi metallic material. As we know that the semi metallic materials contains friction modifiers that bond all the components together. These are having excellent heat transfer and better friction with less wear.

SELVA BABU B, NAGIREDDYPALLI SHIVA KUMAR, MOHAMMAD ATHAR AND MANI Y

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