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:
May. 29, 2012
Filed:
Sep. 15, 2008
Ulrich Schlatter, Lyss, CH;
Ulrich Schlatter, Lyss, CH;
Feintool Intellectual Property AG, Lyss, CH;
Abstract
A method and device for lubricating tool and workpiece at cutting and forming, especially fine blanking of a workpiece with 5 mm or more thickness and with complex part geometry from a flat strip lubricates a tool and workpiece at cutting and forming, so that fine blanking of thicker parts is reproducible, with high quality. Extended the edge life of the tools is achieved by lubricating the active surfaces without the provided lubricating film breaking off. One quantity of cutting oil is accumulated in a micro-surface structure of a functional surface of shearing punch and cutting die and evenly distributed on the functional surfaces as quasi-stationary cutting oil film by cooperation of functional surfaces moving past each other when the tool is closed, and another quantity of accumulated cutting oil, via the respective effective gaps, is provided to the active surfaces of shearing punch and workpiece in the forming zone.