Title:
DIE FOR BENDING CORRECTION, BENDING CORRECTION METHOD, AND MANUFACTURING METHOD OF TURBINE BLADE ROUGH-FORGING
Document Type and Number:
Japanese Patent JP2018051611
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a die for bending correction, a bending correction method, and a manufacturing method of turbine blade rough-forging which can correct a shape easily by using a radial forging machine even in a case of a hardly-processable material used for a turbine blade.SOLUTION: A die for bending correction corrects a shape of a hot forging material for a turbine blade formed in a rod shape by radial forging. The die for bending correction includes a pressing part for correcting bending of the hot forging material for a turbine blade. The pressing part includes a first pressing part and a second pressing part simultaneously press a large-diameter part and a small-diameter part of the hot forging material for a turbine blade. The first pressing part and the second pressing part are formed so as to surround an outer peripheral surface of the hot forging material for a turbine blade along a circumferential direction.SELECTED DRAWING: Figure 1
Inventors:
MITSUNAGA HISASHI
KOHIKI SATOSHI
FUKUI TAKESHI
KOHIKI SATOSHI
FUKUI TAKESHI
Application Number:
JP2016192296A
Publication Date:
April 05, 2018
Filing Date:
September 29, 2016
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
B21K3/04; B21D3/10; B21J5/00