Materials Selection of Disc Brake Pads - PowerPoint PPT Presentation

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Title:

Materials Selection of Disc Brake Pads

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Title: Materials Selection of Disc Brake Pads Author: ksbjn02 Last modified by: abc Created Date: 4/24/2005 8:33:54 PM Document presentation format – PowerPoint PPT presentation

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Title: Materials Selection of Disc Brake Pads


1
Materials Selection of Disc Brake Pads
2
Operation of Disc Brakes
  • Brake pedal is depressed pushing fluid through
    the system
  • A piston is then forced out
  • Brake pads are forced together
  • Friction between pads and rotor cause the car to
    slow down

3
Factors in Material Selection
  • Coefficient of friction
  • Heat fade
  • Thermal expansion
  • Hardness

4
Brake Pad Materials
  • Organic and Asbestos - health issues, softer
    composition, low heat fade resistance, small
    range of use
  • Semi-Metallic -
  • 40 metal by content wt(steel wool, iron,)
  • hard surface, high friction
  • Towing, larger vehicles
  • Low heat concern, wears rotors fastest
  • Ceramic
  • Ceramic fibers, lt15 metal by wt. Ct.
  • High hardness, more advanced technology
  • High heat operation, less heat fade
  • Long life
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