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:
Sep. 12, 2023
Filed:
Nov. 20, 2019
Robert Bosch Gmbh, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The present disclosure concerns a process for the blanking of metal parts () from a—layered basic material () composed of a number of mutually stacked individual layers () placed and clamped between a blanking die () and a blank holder () of a blanking device (), wherein a blanking punch () of the blanking device () is moved relative to the blanking die () to cut and separate the metal parts () from the basic material (). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes () by a first blanking punch () without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts () by a second blanking punch () while being supported by a counter punch ().