Title:
METHOD FOR MANUFACTURING ANNULAR FORMED ARTICLE
Document Type and Number:
Japanese Patent JP2007229754
Kind Code:
A
Abstract:
To provide a method for manufacturing an annular formed article with which the metal-made annular formed article can easily and precisely be manufactured in a low cost.
The method for manufacturing the annular formed article is provided with: an annular body forming process for forming the annular body R by hot-forming or warm-forming a metal blank , or cutting off a pipe material; an outer diameter-sizing process for forming a prescribed dimension by cold-sizing the outer diameter of the annular body R; and a cold gear rolling process for thread-rolling the annular body R.
COPYRIGHT: (C)2007,JPO&INPIT
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Inventors:
KITANOMA KEITA
Application Number:
JP2006053234A
Publication Date:
September 13, 2007
Filing Date:
February 28, 2006
Export Citation:
Assignee:
NIHON CR KK
International Classes:
B21H1/12; F16D3/20
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Shinichi Mashita
Kakehi Yuro
Shinichi Mashita
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