Title:
METHOD FOR PRODUCING SHEET METAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2017/072981
Kind Code:
A1
Abstract:
The present invention makes it less likely that an end of a tubular part is buckled when the thickness of the end is increased. This method for producing a sheet metal member includes a preformed material forming step S350, a one-end thickening step S352, and a shape-fixing step S354. The preformed material forming step S350 is a step for forming a preformed material. The preformed material (10) is provided with a tubular part. The one-end thickening step S352 is a step for pressing a one-end thickening mold against an annularly-shaped one end (26) of the tubular part. The shape-fixing step S354 is a step for fixing the shape of the one end. At the one-end thickening step S352, the one end (26) of the tubular part is thickened in a state where the movement of the one end of the tubular part is restricted.
Inventors:
NISHIOKA MASAKI (JP)
FUJII NAOKI (JP)
HARADA KUNIHIRO (JP)
MATSUI KAZUHITO (JP)
FUJII NAOKI (JP)
HARADA KUNIHIRO (JP)
MATSUI KAZUHITO (JP)
Application Number:
PCT/JP2015/082684
Publication Date:
May 04, 2017
Filing Date:
November 20, 2015
Export Citation:
Assignee:
KANEMITSU CORP (JP)
International Classes:
B21K21/12; B21D22/30; B21J5/02
Foreign References:
| JP2001038443A | 2001-02-13 | |||
| JP2008528357A | 2008-07-31 | |||
| US20120169045A1 | 2012-07-05 | |||
| US2325480A | 1943-07-27 | |||
| JPH079062A | 1995-01-13 |
Attorney, Agent or Firm:
SUZUE Shoji (JP)
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