SEMI-SOLID/SQUEEZE CASTING​

Molten metal is cooled to about 50% of its liquid temperature forming a special globular structure. The metal is then injected at low velocity into a metal die where it cools to a solid and then ejected. Squeeze casting uses molten metal injected into a metal die and held under high pressure while solidification is in process.

  • Several aluminum alloys
  • Near net shape, close tolerances
  • Capable of zero porosity, very dense grain structure similar to wrought metals
  • Smooth surface finish, typical 32-125 RMS
  • Moderate draft requirements
  • Ounces to 10 lbs.
  • High tooling costs
  • Moderate piece price
  • Medium to high quantities
  • Restrictions to design – undercuts and reverse angles must be machined

CASTING PROCESS DETAIL COMPARISONS

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