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.
Patent No.:
Date of Patent:
Apr. 10, 2001
Filed:
Aug. 18, 1998
Applicant:
Inventors:
Alfred Skrabs, Sitterswald, DE;
Willy Grimm, Kallnach, CH;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 2/802 ;
U.S. Cl.
CPC ...
B21D 2/802 ;
Abstract
For producing stamped parts, especially plates, a method is proposed consisting of only two method steps. In a first method step the workpiece is fine blanked (,) inside a device (,) is then moved to a stamping stage (,) by means of transfer tongs (,) which are likewise housed in the device (,). The stamping stage (,) is also located inside the device (,). In a second method step, the inner and outer contours are stamped on the workpiece (,) in the stamping stage (,) in a manner such that the burrs produced on the workpiece (,) during the first step are removed.