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An Example in Aluminum Casting   The Corvette Brake Pedal

Low Pressure Permanent Mold

PM-LP.jpg (9739 bytes)
The low pressure (LP)   feed permanent mold is  the best choice of molding method for the brake pedal
  • The LP permanent mold can provide the surface finish and dimensional tolerances needed for the brake pedal.
  • The fast cycle times in casting in permanent steel molds can support the production rate needed for the brake pedal.
  • The durability of the steel mold will insure that the surface finish and dimensional tolerances are maintained across the multi-year production run.
  • The low pressure fill of the permanent mold will give a more rapid and uniform fill of the mold and provides good surface finish and casting soundness.
  • LP molds use simpler gating systems and do not need risers to feed solidification shrinkage. This reduces the metal costs and eliminates a trimming/grinding operation.

Move to the next design issue -- aluminum alloy selection


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Address Comments to: jss@afsinc.org
 
Last Modified:October, 1999 by STG

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