Semi-Solid Molding
Specially prepared metal slugs are gradually heated to a semi-solid state, then transferred to the forming machine, where a ram injects (squeezes), under pressure, the metal into the die. Once solid, the die opens and the part is ejected.
Metals: Aluminum, magnesium, and some copper alloys.
Size Range: Ounces to about 1 pound, limited to a diameter of feed stock. Some SSM Houses can produce parts up to 15-20 pounds.
Tolerances: Equivalent to or superior to high pressure die casting tolerances.
Tooling Cost: Hard steel tooling equivalent to miniature die cast in cost and complexity.
Surface Finish: Finish: 32-63 RMS
Minimum Draft Requirements: 1/4° Preferred, 1/2° possible based on applicaton.
Normal Minimum Section Thickness: 0.030"
Ordering Quantities: 2,500 and up (usually 50,000 pieces and up).
Normal Lead Time: Samples: 10-18 weeks.
Production: 6-8 weeks A.S.A.
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