Semi-Solid Metal Processing (SSM)


Description: 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.

Part Price: 4

Design Freedom: 3

Surface Finish: 32-63

Minimum Draft: 1/4° Preferred, 1/2° possible based on applicaton.

Normal Minimum Section Thickness: 0.030"

Order Quanity: 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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