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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING METAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/096693
Kind Code:
A1
Abstract:
The present invention reduces the possibility of wrinkles forming between a cylindrical part and the periphery of a base thereof. A method for manufacturing a metal member is provided with a cylindrical part forming step S200 and a base wall thickness increasing step S202. The cylindrical part forming step S200 comprises forming a cylindrical part in a metal plate-shaped material. The base wall thickness increasing step S202 comprises increasing the wall thickness of a base portion of the cylindrical part. The base wall thickness increasing step S202 has an internal-peripheral-portion movement step S210 and a push-out step S214. In the internal-peripheral-portion movement step S210, a punch causes an internal peripheral portion on a distal-end side of the cylindrical part to move toward an internal peripheral portion on the base side. In the push-out step S214, the punch pushes out the moved portion of the cylindrical part moved in the internal-peripheral-portion movement step S210 in the opposite direction from the protrusion direction of the cylindrical part as viewed from the periphery of the base of the cylindrical part in a state in which the periphery of the base of the cylindrical part is interposed between a female die and a pressing die.

Inventors:
FUJII Naoki (20-26 Ookurahonmachi, Akashi-sh, Hyogo 74, 〒6730874, JP)
Application Number:
JP2017/000468
Publication Date:
May 31, 2018
Filing Date:
January 10, 2017
Export Citation:
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Assignee:
KANEMITSU CORPORATION (20-26, Ookurahonmachi Akashi-sh, Hyogo 74, 〒6730874, JP)
International Classes:
B21D19/08
Foreign References:
JP2005000977A2005-01-06
JPH11138219A1999-05-25
US20100294064A12010-11-25
Attorney, Agent or Firm:
SUZUE Shoji (Umeda East Building, 5-15 Taiyujicho, Kita-ku, Osaka-sh, Osaka 51, 〒5300051, JP)
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