The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 31, 2017

Filed:

Sep. 11, 2015
Applicant:

Schuler Pressen Gmbh, Goeppingen, DE;

Inventor:

Klaus Blei, Wangen, DE;

Assignee:

SCHULER PRESSEN GMBH, Göppingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 22/30 (2006.01); B21D 22/28 (2006.01);
U.S. Cl.
CPC ...
B21D 22/30 (2013.01); B21D 22/28 (2013.01);
Abstract

An ironing ring for use in a press for ironing pressing or drawing of a workpiece. The ironing ring has a work surface which, upon deforming the workpiece, contacts the workpiece, and causes flowing of the workpiece material. In order to prevent friction deposits in the region of the work surface of the ironing ring, a microstructure, differing from the roughness of the work surface, is introduced into the work surface, which forms elevations and/or recesses in the work surface. Material particles remaining on the work surface after the deforming of a workpiece thus adhere less strongly to the work surface and can be stripped off during the next deforming process.


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