- Patent Title: Resiliently mounted, segmented hot forming tool and method for producing a hot formed and press-hardened steel component having a sharply defined transition region
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Application No.: US14978753Application Date: 2015-12-22
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Publication No.: US10245632B2Publication Date: 2019-04-02
- Inventor: Oliver Luetkemeyer , Matthias Wiemers , Robert Stockter
- Applicant: BENTELER Automobiltechnik GmbH
- Applicant Address: DE Paderborn
- Assignee: BENTELER AUTOMOBILTECHNIK GMBH
- Current Assignee: BENTELER AUTOMOBILTECHNIK GMBH
- Current Assignee Address: DE Paderborn
- Agency: Jacobson Holman, PLLC.
- Priority: DE102014119545 20141223
- Main IPC: B21D22/02
- IPC: B21D22/02 ; B21D22/20 ; B21D37/16 ; B21D53/88

Abstract:
A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
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