Invention Grant
- Patent Title: Process and device for producing hot-formed wheel naves
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Application No.: US15103637Application Date: 2014-12-15
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Publication No.: US10092944B2Publication Date: 2018-10-09
- Inventor: Arndt Marx , Müller Christian , David Pieronek , Axel Grüneklee , Markus Zörnack
- Applicant: THYSSENKRUPP STEEL EUROPE AG , THYSSENKRUPP SYSTEM ENGINEERING GMBH , THYSSENKRUPP AG
- Applicant Address: DE Duisburg DE Essen
- Assignee: THYSSENKRUPP STEEL EUROPE AG,THYSSENKRUPP AG
- Current Assignee: THYSSENKRUPP STEEL EUROPE AG,THYSSENKRUPP AG
- Current Assignee Address: DE Duisburg DE Essen
- Agency: thyssenkrupp North America, Inc.
- Priority: DE102013114245 20131217
- International Application: PCT/EP2014/003355 WO 20141215
- International Announcement: WO2015/090552 WO 20150625
- Main IPC: B21D53/26
- IPC: B21D53/26 ; B60B3/02 ; B60B3/00 ; B60B27/06

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.
Public/Granted literature
- US20160318091A1 PROCESS AND DEVICE FOR PRODUCING HOT-FORMED WHEEL NAVES Public/Granted day:2016-11-03
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