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The 206 T7 aluminum alloy
- The aluminum 206 alloy with a T7 Heat Treat is a high
strength, high ductility alloy that can easily meet the mechanical requirements of the
brake pedal.
- The copper content in the 206 alloy is high enough to
cause a potential corrosion and pitting problem, which would require an additional
protective coating on the pedal.
- The alloy has enough fluidity to fill the long thin
geometry of the mold. But it is susceptible to hot tearing which would reduce
production yield. An increased possibility of hot tearing will require 100%
non-destructive inspection of the brake pedal castings.
- Overall, the 206 T7aluminum alloy exceeds the
mechanical requirements, but falls short on corrosion resistance and castability.
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