Invention Grant
- Patent Title: Method for producing a shaped sheet metal part having wall thicknesses differing from each other by region, and axle subframe
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Application No.: US15557679Application Date: 2016-03-14
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Publication No.: US10226809B2Publication Date: 2019-03-12
- Inventor: Thomas Henksmeier , Erik Hochapfel , Dieter Friesen
- Applicant: Benteler Automobiltechnik GmbH
- Applicant Address: DE Paderborn
- Assignee: BENTELER AUTOMOBILTECHNIK GMBH
- Current Assignee: BENTELER AUTOMOBILTECHNIK GMBH
- Current Assignee Address: DE Paderborn
- Agency: Hauptman Ham, LLP
- Priority: DE102015103721 20150313
- International Application: PCT/DE2016/100114 WO 20160314
- International Announcement: WO2016/146107 WO 20160922
- Main IPC: B21D25/00
- IPC: B21D25/00 ; B21D53/88 ; B21D35/00 ; B21D53/90 ; B21D22/02 ; B62D21/11 ; B21D13/02 ; B21D22/00

Abstract:
A method for producing a shaped sheet metal component having wall thicknesses differing from each other is disclosed including providing a sheet metal material having a constant wall thickness, pre-shaping the sheet metal material into a preform by means of a hold-down press, producing at least one bulge in an inner region such that the material is stretched and has a reduced wall thickness, flattening and/or extending the produced preform, cutting the sheet metal material in order to form a blank before, during, or after the pre-shaping, and shaping the blank into the shaped sheet metal component.
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