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/2014/109202
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 an equipment configuration used for forming a metallic pressed component, wherein a rising cylindrical boss section is formed on a plate-like base section, can be made small and simple, and a boss section with a wide shape can be formed. A piercing die (110), a holding body (120), and a piercing punch (130) are used to form a pressed component (90). The piercing die (110) is equipped with a receiving section (111), an outer shape-forming section (112), and a die-side cutting edge (113). In addition, the piercing punch (130) is equipped with an inner shape-forming section (131), a punch-side cutting edge (132), and a linear section (133). During the formation of the pressed component (90), the piercing punch (130) is pressed against a preform (90'), wherein a preliminary boss section (92') is formed on a blank (BL), so as to cause the preliminary boss section (92') to flow to the outer shape-forming section (112), and then a portion of the preliminary boss section (92') left at the outer shape-forming section (112) is cut off in order to form a boss section (92).
Inventors:
KAWAI KEITARO (JP)
SHIMIZU YUKI (JP)
SHIMIZU YUKI (JP)
Application Number:
PCT/JP2013/084109
Publication Date:
July 17, 2014
Filing Date:
December 19, 2013
Export Citation:
Assignee:
FCC KK (JP)
International Classes:
B21D28/10; B21D19/08; B21D22/30
Foreign References:
| JPH1094837A | 1998-04-14 | |||
| JP2004223583A | 2004-08-12 | |||
| JPH09164431A | 1997-06-24 | |||
| JPS52128638U | 1977-09-30 |
Attorney, Agent or Firm:
ITO HIROYUKI (JP)
居藤 Hiroyuki (JP)
居藤 Hiroyuki (JP)
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