INVESTMENT CASTING

Wax is injected into a metal mold, cooled, and removed. Waxes are mounted on wax sprues (trees) and dipped in ceramic multiple times to create a shell. Wax is removed by steam autoclave, shell is fired, and molten metal poured into it. When cooled, the shell is broken to remove the parts.

All castable metal alloys
Near net shape dimensions
Can eliminate many secondary operations
Excellent surface finish, typical 125 RMS
Thin walls, little or no draft required
Ounces to 2000 lbs.
Low to medium tooling costs
1 to 1000s of parts
No restrictions on design

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