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. 06, 2004

Filed:

Jan. 10, 2002
Applicant:
Inventors:

Werner Sczesny, Bochum, DE;

Frank Siewert, Dortmund, DE;

Jürgen Bergmann, Dortmund, DE;

Assignee:

SMS Eumuco GmbH, Leverkusen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 3/02 ;
U.S. Cl.
CPC ...
B21D 3/02 ;
Abstract

A flange is formed on a workpiece by first mounting the workpiece in an inner holder shiftable along about a main axis and securing the inner holder against rotation about the main axis. A roller is rotated about the main axis adjacent the inner holder. Then the inner holder and workpiece are displaced axially to press the workpiece axially against the roller and deform the workpiece and form a flange thereon. This is done without heating the workpiece, that is in a cold-forming operation.


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