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1. (WO2017020888) DEVICE AND METHOD FOR TEMPERING SECTIONS OF METAL COMPONENTS

Pub. No.:    WO/2017/020888    International Application No.:    PCT/DE2016/100347
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Fri Jul 29 01:59:59 CEST 2016
IPC: C21D 1/40
B21D 22/02
B21D 22/20
B62D 25/04
B62D 29/00
C21D 1/673
Applicants: BENTELER AUTOMOBILTECHNIK GMBH
Inventors: KONRAD, Stefan
NIESSE, Max
WULFES, Dieter
SCHNEIDER, Dimitri
Title: DEVICE AND METHOD FOR TEMPERING SECTIONS OF METAL COMPONENTS
Abstract:
The invention relates to a device for tempering sections of hot-formed and/or press-hardened metal components (13), comprising a support structure (43) and a work head (8), said work head (8) having at least one contact element (11, 12) consisting of an electrically-conductive material, for heating sections of a metal component (13) using a flow of heat. Electrodes (15, 15a, 16, 16a) for resistively heating the contact element are connected thereto, and to a current source. According to the method, a hot-formed and/or press-hardened metal component (13) is first provided, and at least one contact element (11, 12) mounted on a work head (8) is heated to a temperature greater than a target temperature to which a section of the metal component (13) is to be heated. A contact surface of said contact element (11, 12) then comes into full-surface contact with the metal component (13) section to be heated, with a predetermined pressing force, such that the metal component (13) is heated to a target temperature in at least some sections by a flow of heat. The contact element (11, 12) is thus heated using resistive heating.