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:
Oct. 09, 2018
Filed:
Dec. 15, 2014
Thyssenkrupp Steel Europe Ag, Duisburg, DE;
Thyssenkrupp System Engineering Gmbh, Weiperstr, DE;
Thyssenkrupp Ag, Essen, DE;
Arndt Marx, Mettlach-Orscholz, DE;
Müller Christian, Schmelz Hüttersdorf, DE;
David Pieronek, Dortmund, DE;
Axel Grüneklee, Duisburg, DE;
Markus Zörnack, Lake Orion, MI (US);
THYSSENKRUPP STEEL EUROPE AG, Duisburg, DE;
THYSSENKRUPP AG, Essen, DE;
Abstract
A method for producing a wheel disk of a vehicle wheel may involve producing the wheel disk produced from a steel blank by hot forming. The blank may be at least partially hardened, preferably press-hardened, during or after the hot forming. The blank may be hot formed using at least one punch and at least one die, and at least one opening may be introduced into the blank using hot trimming means. At least one opening may be introduced during the hot trimming using at least one trimming bolt and an application bolt, wherein the application bolt may have at least one region having a cross-sectional shape that is variable in a longitudinal direction of the application bolt. Using the application bolt, the at least one opening may be calibrated via the variable cross sectional shape.