Title:
工具及び打抜き部材の製造のための方法
Document Type and Number:
Japanese Patent JP6472190
Kind Code:
B2
Abstract:
An upper die part includes an embossing bell, a stripper ring, and an inner shape embossing element. The stripper ring has an embossing surface with a corrugated profile on the embossing surface. A lower die part includes an embossing anvil having a corrugated profile on its embossing surface. The embossing bell and the inner shape embossing element each are provided with an embossing shoulder, which are disposed, with respect to the corrugated profile of the stripper ring, in the stroke direction in such a way that the shoulders can seize the burrs only alter the corrugating step. The corrugating step takes place prior to burr compression. The outer and inner contours of the disk are not able to change positions, but are able to change shapes on the burr side after the corrugating step.
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Inventors:
Andreas Marti
Application Number:
JP2014169069A
Publication Date:
February 20, 2019
Filing Date:
August 22, 2014
Export Citation:
Assignee:
Fine Tools International Holding AG
International Classes:
B21D28/00; B21D13/02; B21D19/00; B21D22/02
Domestic Patent References:
| JP2004160540A | ||||
| JP2000506781A | ||||
| JP2011230192A | ||||
| JP2006142363A |
Foreign References:
| US5492001 | ||||
| US4267753 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Atsushi Shinohara
Kiyota Eisho
Blacksmith
Atsushi Shinohara
Kiyota Eisho