METHOD FOR FORGING NICKEL-BASED ALLOY

Title:

METHOD FOR FORGING NICKEL-BASED ALLOY

Document Type and Number:

Japanese Patent JP2017001074

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a method for forging a nickel-based alloy capable of suppressing an increase in coarseness of crystal grains even for a complicated processed shape when the nickel-based alloy is forged.SOLUTION: A method for forging a nickel-based alloy comprises: an initial heating step for heating the nickel-based alloy to an initial heating temperature which is higher than a re-crystallization starting temperature; a first forging step for performing forging to the nickel-based alloy; a cooling step for cooling the nickel-based alloy to a temperature lower than the initial heating temperature; and a second forging step for performing forging to the nickel-based alloy at higher precision level than the first forging step, where the steps are to be done in the above-mentioned order.SELECTED DRAWING: Figure 1

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Inventors:

SAKURAI SHINGO
NISHIMOTO TAKASHI
OKAJIMA TAKUMA

Application Number:

JP2015119897A

Publication Date:

January 05, 2017

Filing Date:

June 15, 2015

Export Citation:

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Assignee:

DAIDO STEEL CO LTD

International Classes:

B21J5/00; C22C30/00; C22F1/10

Attorney, Agent or Firm:

Ueno patent office

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