INVESTMENT CASTING FOR USE IN SUPER ALLOY TURBINE ENGINE COMPONENTS THAT IS SIMPLE AND EASY TO PERFORM

摘要

PURPOSE: Provided is an investment casting for use in super alloy turbine engine components such as blades, to make a shelling process simple and easy to perform for any one. CONSTITUTION: The investment casting for use in blades among super alloy turbine engine components, in which a blade has an air foil(28) and a root(26) to be fixed onto a disk, includes the steps of: forming a plurality of molding sections, each having an inner surface for forming at least one blade; assembling a plurality of the molding sections; and introducing a melted alloy to the molding sections. A blade pattern assembly(20) includes cores(40) formed in many positions, a blade pattern(22) formed on a metal supporting plate(44) and is supported by a grain starter(30), a feed path pattern(24), and a downsprue connector(52) is attached to a downsprue(54).