Bayerische Motoren Werke Aktiengesellschaft

B Ayerische M Otoren W Erke a Ktiengesellschaft

Bernd Kupetz

Robert Kirschner

Juergen Becker

Ulrich Schmid

Stefan Reitmeier

Martin Schmitt

Birgit Klein

Angelika Spalek

Andreas Kapfer

Torsten Fassauer

Wilhelm Frey

Karl Schönbauer

Wolfgang Paul

Jürgen Becker

A method is provided for producing a hot-formed component, in particular a sheet-metal component made of steel, aluminum, magnesium or a combination of the materials. The method includes the acts of: heating a semifinished product, in particular a sheet-metal blank or a pre-shaped sheet-metal component, inserting the semifinished product into a molding tool, and quenching the semifinished product in the molding tool, wherein a change is made to the microstructure of the material at least in one portion. Before the insertion of the semifinished product into the molding tool, an insulating device is applied in at least one predetermined region of the semifinished product. The insulating device is connected in a form-fitting, integral and/or force-fitting manner to the semifinished product.

Method for producing hot-formed components

A sheet metal component that is made of a press-hardened steel sheet material and is to be used as a vehicle body component for a motor vehicle, is provided. The sheet metal component has at least one overhardened component region which is provided to act as a predetermined breaking point in the event of being subject to a crash load. A component assembly and a motor vehicle body, which have at least one such press-hardened sheet metal component, are also provided.

Press-hardened sheet metal component with at least one predetermined breaking point, and component assembly and motor vehicle body with such a sheet metal component

A molding tool is provided for producing hot-formed components, in particular formed sheet metal parts. The molding tool includes a tool lower part and a tool upper part which are movable in relation to each other, and which include corresponding operative faces for shaping a hot-formed component. The operative face of at least one of the tool parts is configured so as to be coolable and that tool part includes cooling lines therein. At least one of the tool parts includes a clearance which in a closed state of the molding tool, conjointly with the hot-formed component, forms an air chamber. The air chamber functions as a thermal insulator between the hot-formed component and the tool part.

Molding tool for producing hot-formed components

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Karlsfeld, Germany

Bernd Kupetz