Title:
METHOD FOR FORMING PROJECTING PORTION, SYSTEM FOR FORMING PROJECTING PORTION, AND METHOD FOR MANUFACTURING METAL COMPONENT HAVING PROJECTING PORTION
Document Type and Number:
WIPO Patent Application WO/2019/230795
Kind Code:
A1
Abstract:
In relation to metal plates or metal rods having a projecting portion, to be used as components or current collecting terminals of various devices, for example, the objective of the present invention is to provide a method for forming a projecting portion, a system for forming a projecting portion, and a method for manufacturing a metal component having a projecting portion with which it is possible for a solid projecting portion to be formed in a simple manner by press-forming, without making the metal plate thinner, and without deforming or reducing the diameter of the metal rod. In a state in which a metal workpiece is being clamped and secured by means of a receiving mold and a presser mold, an outer peripheral edge cross section of the workpiece is pressed by press-forming using a pressing die or a pressing jig from a direction perpendicular to and/or inclined with respect to an upright direction of a projecting portion to be formed on one surface of the workpiece, at a temperature less than the softening point of the metal of the workpiece, to cause the metal of the workpiece to flow plastically into a through hole provided in either the receiving mold or the presser mold, the through hole serving as a female recessed portion with respect to the projecting portion, thereby forming a solid metal projecting portion.
Inventors:
SEKI MASAKATSU (JP)
Application Number:
PCT/JP2019/021276
Publication Date:
December 05, 2019
Filing Date:
May 29, 2019
Export Citation:
Assignee:
SEKI PRESS CO LTD (JP)
International Classes:
B21J5/06; B21J13/02; B30B13/00
Foreign References:
| JP2017094342A | 2017-06-01 | |||
| JP2009248143A | 2009-10-29 | |||
| JP2017094341A | 2017-06-01 | |||
| JP2001328031A | 2001-11-27 | |||
| JP2013066998A | 2013-04-18 | |||
| JP2004330334A | 2004-11-25 | |||
| JP2011050987A | 2011-03-17 | |||
| JP2002143933A | 2002-05-21 | |||
| JPH09298056A | 1997-11-18 | |||
| JP2005153014A | 2005-06-16 | |||
| JP2004017107A | 2004-01-22 | |||
| JP2017094341A | 2017-06-01 | |||
| JP2007014978A | 2007-01-25 |
Other References:
See also references of EP 3812061A4
Attorney, Agent or Firm:
EGUCHI, Shuji (JP)
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