Title:
METHOD FOR PRODUCING A THREE-DIMENSIONALLY FORMED ARMOURING COMPONENT FOR VEHICLE BODIES
Document Type and Number:
WIPO Patent Application WO2005078143
Kind Code:
A8
Abstract:
The invention relates to a method for producing a three-dimensionally formed armouring component for vehicle bodies. The aim of the invention is to be able to produce armouring components in a repeatedly accurate manner with minimal post-machining requirements and with lower dimensional tolerances than comparable weldments. To this end, sheet metal moulded parts are produced from hardenable steel by means of a thermal pre-treatment, the heating speed and temperature being selected at least until the austenitic or partially austenitic state depending on the alloy content is achieved, and the formed armouring components are then press-formed and optionally subsequently subjected to quench or thermal treatment. According to the invention, the hot-forming and quench-hardening of the steel plates is carried out in one working cycle, the austenitic steel plates are formed within a maximum period of 90 seconds by means of a compression mould, the entire formed component is held in contact with the compression mould, and the formed component is cooled in the closed compression mould, with a cooling speed which corresponds at least to the material-specific critical cooling speed.
Inventors:
SOBE MARION (DE)
SCHROEDER MEINHARD (DE)
MUELLER THOMAS (DE)
SCHROEDER MEINHARD (DE)
MUELLER THOMAS (DE)
Application Number:
PCT/DE2005/000169
Publication Date:
November 30, 2006
Filing Date:
February 03, 2005
Export Citation:
Assignee:
FES GMBH FAHRZEUG ENTWICKLUNG (DE)
SOBE MARION (DE)
SCHROEDER MEINHARD (DE)
MUELLER THOMAS (DE)
SOBE MARION (DE)
SCHROEDER MEINHARD (DE)
MUELLER THOMAS (DE)
International Classes:
C21D8/00; C21D9/42; C21D1/25; C21D1/58; C21D1/673
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