Title:
SUPERELASTIC SEAMLESS TUBE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/039658
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a manufacturing method for allowing manufacturing of a superelastic seamless tube having a small diameter without decreasing rigidity. This superelastic seamless tube manufacturing method is for obtaining a superelastic seamless tube by: forming a clad tube having a predetermined outer diameter by extending, in the axial direction, a clad material obtained by inserting a core member 2 formed from a metal material into a cylindrical tube member 1 formed from a superelastic alloy material; forging the clad tube to deform and reduce the diameter of the core member 2 such that a gap is formed between the tube member 1 and the core member 2; and pulling the core member 2 having the reduced diameter out of the clad tube.
Inventors:
TAKEZAWA KIYONORI (JP)
YAMAUCHI KIYOSHI (JP)
YAMAMOTO MASAHIRO (JP)
TAKAMURA SEIICHI (JP)
YAMAUCHI KIYOSHI (JP)
YAMAMOTO MASAHIRO (JP)
TAKAMURA SEIICHI (JP)
Application Number:
PCT/JP2019/017898
Publication Date:
February 27, 2020
Filing Date:
April 26, 2019
Export Citation:
Assignee:
JAROC CO LTD (JP)
International Classes:
B21C1/22; B21C1/00; B21C1/24; B21C45/00; B21D3/00; B21J5/00; B21J5/06; C22C19/03
Foreign References:
| JP2007054867A | 2007-03-08 | |||
| JP2005502472A | 2005-01-27 |
Attorney, Agent or Firm:
KAWASAKI Yoshiaki (JP)
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