Title:
FORMING METHOD FOR PRESSED COMPONENT, MANUFACTURING METHOD FOR PRESSED COMPONENT, AND FORMING TOOL FOR PRESSED COMPONENT
Document Type and Number:
WIPO Patent Application WO/2014/109201
Kind Code:
A1
Abstract:
Provided are a forming method for a pressed component, a manufacturing method for the pressed component, and a forming tool for the pressed component, whereby the required load for forming is reduced in order to allow the equipment configuration to be made small and simple. This pressed component (80) is formed by means of press working of a preform (90), wherein an inclined section (92) bent into an arc shape is formed at the tip of a tapered cylindrical section (91), using a forming tool (100) comprising a holding body (110), a piercing punch (120), and a piercing die (130). In a state wherein the cylindrical section (91) of the preform (90) is restrained by an outer fixing/supporting section (112) of the holding body (110) and an inner fixing/supporting section (132) of the piercing die (130), the forming tool (100) cuts the inclined section (92) using an outer cutting edge (122) of the piercing punch (120) and an inner cutting edge (135) of the piercing die (130), and then, with a pressing section (121) of the piercing punch (120), compresses an uncut part of the inclined section (92) inside a forming space (FS) after that part has been inflected to form a corner section (83).
Inventors:
SHIMIZU YUKI (JP)
TOUDA YUTAKA (JP)
TOUDA YUTAKA (JP)
Application Number:
PCT/JP2013/084105
Publication Date:
July 17, 2014
Filing Date:
December 19, 2013
Export Citation:
Assignee:
FCC KK (JP)
International Classes:
B21D22/26; B21D24/16; B21D35/00
Foreign References:
| JPH0732068A | 1995-02-03 | |||
| JP2004358553A | 2004-12-24 |
Attorney, Agent or Firm:
ITO HIROYUKI (JP)
居藤 Hiroyuki (JP)
居藤 Hiroyuki (JP)
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