Quasi-isothermal forging of a nickel-base superalloy

US6932877B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Edward L. Raymond · Maineville, US
• Richard G. Menzies · Wyoming, US
• Terrence Owen Dyer · Cincinnati, US
• Barbara Ann Link · Sharonville, US
• Richard Halter · Monroe, US
• Mike Eugene Mechley · Cincinnati, US
• Francis Mario Visalli · Mason, US
• Shesh Krishna Srivatsa · Cincinnati, US

Key dates

• Filing date: Oct 31, 2002
• Grant date: Aug 23, 2005
• Expiry date: Apr 29, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21J5/00
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A forging blank of a forging nickel-base superalloy is forged in a forging press having forging dies made of a die nickel-base superalloy. The forging is accomplished by heating the forging blank to a forging-blank starting temperature of from about 1850° F. to about 1950° F., heating the forging dies to a forging-die starting temperature of from about 1500° F. to about 1750° F., placing the forging blank into the forging press and between the forging dies, and forging the forging blank at the forging-blank starting temperature using the forging dies at the forging-die starting temperature, to produce a forging.