MANUFACTURING METHOD FOR BLADE MATERIAL AND MANUFACTURING DEVICE FOR BLADE MATERIAL

Title:

MANUFACTURING METHOD FOR BLADE MATERIAL AND MANUFACTURING DEVICE FOR BLADE MATERIAL

Document Type and Number:

WIPO Patent Application WO/2012/043374

Kind Code:

A1

Abstract:

Provided are a manufacturing method for a blade material and a manufacturing device for a blade material, by which a long blade material can be manufactured without using a large-sized press forging machine. A manufacturing method for a blade material, in which hot forging is sequentially performed by molds from the root side to a blade (vane) tip, wherein when a root-side portion is grasped and a material to be forged is restrained by a mold, twisting is performed on a region between the grasped portion and the restrained portion. A manufacturing method for a blade material, in which hot forging and twisting are repeated, is preferable, and a manufacturing method for a blade material, in which hot forging is performed while molds are sequentially changed, is more preferable.

More Like This:

JP2001207977	METHOD FOR MANUFACTURING SCROLL
WO/2014/098151	METHOD FOR MANUFACTURING TURBINE ROTOR BLADE

Inventors:

SATO KOJI (JP)
TOGA TAKASHI (JP)
WAKAZONO YOSHIHIRO (JP)
MATSUMOTO HIDEKI (JP)
SHIGIHARA YUSUKE (JP)

Application Number:

PCT/JP2011/071604

Publication Date:

April 05, 2012

Filing Date:

September 22, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HITACHI METALS LTD (JP)
SATO KOJI (JP)
TOGA TAKASHI (JP)
WAKAZONO YOSHIHIRO (JP)
MATSUMOTO HIDEKI (JP)
SHIGIHARA YUSUKE (JP)

International Classes:

B21K3/04; B21D11/14; B21J13/10; B21D53/78

Foreign References:

JPS63252635A	1988-10-19
JPS62192223A	1987-08-22
JPS63241118A	1988-10-06

Other References: