Material used for making Automobile clutch plates and Why
Properties Should Consist in Material used for Clutch Plates are:
- Static friction coefficient, which describes how well a clutch disc will hold onto a flywheel under acceleration. If the coefficient is low, the clutch disc will slip against the flywheel, get hot, and wear away.
- Dynamic friction coefficient, which describes how smoothly (or abruptly) a clutch disc will ‘grab’ a flywheel during engagement. If the coefficient is too high, the clutch will grab immediately, leading to uncomfortable shifts that make low-speed manuevering very difficult (a key concern for truck clutch discs).
- Clamping force, which is the amount of force or “weight” that must be applied to a given clutch disc to make sure it doesn’t slip against the flywheel. The more force applied, the more pedal effort for the driver, the greater the load on the hydraulic system, etc.
- Fade temperature, which is the temperature at which the clutch material begins to lose cohesion. If the temperature is too low, an afternoon spent towing the family boat (or at the local drag strip) can ruin the clutch disc.
There are five different materials utilized in modern clutch design:
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