QUASITHERMAL FORGING OF SUPERALLOY ON NICKEL BASE Russian patent published in 2008 - IPC B21J5/02 C22F1/10 

FIELD: metallurgy.

SUBSTANCE: invention refers to metal treatment under pressure and can be used at forging of blanks fabricated out of nickel base alloys, super alloys including. A forging press with stamping alloy forging dies is used for this purpose. The blank made out of a super alloy is heated to a temperature within range of approximately 1850°F up to approximately 1950°F. Forging dies made out of a nickel base alloy are heated to a temperature within range of approximately 1500°F up to approximately 1750°F. The blank is then placed between dies and forged. As a result a forged item is produced. A blank out of a packed powdered alloy on nickel base and dies out of a super alloy on nickel base are used for production of a half finished component of a gas turbine engine. The blank and the dies are heated to the above mentioned temperatures. Forging is carried out at an open air at a nominal deformation rate exceeding approximately 0.02/sec.

EFFECT: increased efficiency.

15 cl, 3 dwg