investment casting

noun Metallurgy.

a casting process in which an expendable pattern is surrounded by an investment compound and then baked so that the investment is hardened to form a mold and the pattern material may be melted and run off.

Compare lost-wax process.

Origin of investment casting

First recorded in 1945–50

Also called precision casting.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018