1973-02-01

Efficient Use of Investment Casting 730419

Metal castings made from patterns made of wax or another expendable material have been made for about 4000 years. When the need for large quantities of turbine blades arose in World War II, the “lost wax” or investment casting method was brought into use. Investment casting produces a part with close tolerances and good surface finish, and can result in considerable cost savings on particular items while improving the product.

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