Benteler-automobiltechnik Gmbh

Friedrich Bohner

Jochem Grewe

Christian Hielscher

Jochen Doerr

Boris Rauscher

Kiyohito Kondo

Martin Pohl

Robert Stockter

Otto Buschsieweke

Joern Toelle

Jochen Dörr

Werner Böhmer

Ulrich Huschen

Feng Jiao

Jörn Tölle

Nikolay Soritov

Paul Kaupmann

Andreas Schiwek

Martin Koyro

Jochem Dipl-Ing Grewe

A method for producing a motor vehicle component from a 6000 series aluminum alloy including providing a blank made of a 6000 series aluminum alloy, rapid heating of the blank to a temperature between 450 deg. C. and 600 deg. C. at a heating rate of more than 15 K/s in a period of less than 20 seconds, ending the heating process and optionally homogenizing, if a grain size between 20 and 50 &#x3bc;m has been produced, quenching the blank thus tempered, applying a lubricant, preferably at 20 deg. C. to 100 deg. C., forming the cooled blank in a forming tool, wherein the time between completion of the heating process and the start of the forming is less than 30 seconds, and aging.

Method for producing a motor vehicle component from a 6000 series aluminum alloy

A method for producing a structural sheet metal component formed from an aluminum alloy for a motor vehicle includes providing an aluminum sheet blank in a state Tor Tor Tor T, heating the aluminum sheet blank to a heating temperature between 100&#xb0; C. and 450&#xb0; C., forming the aluminum sheet blank to a structural sheet metal component, and heat post-treatment of the formed structural sheet metal component.

Method for producing a structural sheet metal component, and a structural sheet metal component

A method for producing a motor vehicle component is disclosed having the steps of providing a strain-hardened blank composed of a 5000 grade aluminum alloy, partially heating the blank in a first region to a temperature higher than 350&#xb0; C., in particular to 400&#xb0; C., the blank being kept at a temperature between 15&#xb0; C. and 30&#xb0; C., preferably at 20&#xb0; C., in a second region, and the partial heating being performed in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, adjusting the temperature of the blank as a whole to between 150 and 350&#xb0; C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and deforming the blank to form the motor vehicle component in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and cooling the motor vehicle component.

Method for producing a motor vehicle component from aluminum

A method for producing a motor vehicle component, is disclosed having the steps of&#x2014;providing a blank composed of a 5000 grade naturally hard aluminum alloy with an initial yield strength, completely heating the blank to a forming temperature between 150&#xb0; C. and 350&#xb0; C., preferably between 200&#xb0; C. and 300&#xb0; C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and performing forming in a forming tool in less than 20 s, preferably less than 10 s and in particular between 2 and 5 s, the temperature being held between 150&#xb0; C. and 350&#xb0; C. in at least one first region of the blank, and cooling to a temperature lower than 250&#xb0; C., in particular lower than 200&#xb0; C., being performed in a second region during or after the deformation.

A method for producing a motor vehicle component is disclosed having the steps of providing a strain-hardened blank composed of a 5000 grade aluminum alloy, partially heating the blank in a first region to a temperature higher than 350&#xb0; C., in particular higher than 400&#xb0; C., and in a second region to a temperature between 150&#xb0; C. and 350&#xb0; C., preferably to 300&#xb0; C., in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and transferring the blank into a cooling tool, and performing cooling in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s.

A method for producing a motor vehicle component includes the steps of providing a precipitation-hardenable blank composed of a 6000 or 7000 grade aluminum alloy, solution-annealing the blank at a temperature between 350&#xb0; C. and 550&#xb0; C. for a time period of 2 to 30 min., in particular 3 to 20 min. and preferably 5 to 15 min., in particular at a temperature between 440&#xb0; C. and 480&#xb0; C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490&#xb0; C. and 545&#xb0; C. in the case of a 6000 grade aluminum alloy, subjecting the solution-annealed blank to partially different quenching, a first region being quenched to a temperature between 150&#xb0; C. and 250&#xb0; C., and a further region being quenched to a temperature below 150&#xb0; C., deforming the blank during or after the partially different quenching.

Method for producing a motor vehicle component from a hardenable aluminum alloy

In a method for press-hardening a metallic formed structure made of a hardenable steel sheet, the steel sheet is heated above a transition temperature Acand then placed in a cooled press having a forming tool with at least one uncooled contour section for forming a region of reduced hardness. Marginal regions of the steel sheet are clamped with a sheet holder arrangement which has an inner sheet holder and an outer sheet holder. The inner sheet holder is hereby located closer to the forming tool than the outer sheet holder. The sheet holder arrangement is configured to slow down flow of the marginal regions into the forming tool. After closing the press tool, the steel sheet is formed in a first forming phase by holding the marginal region with the outer sheet holder and in a subsequent forming phase by holding the marginal region with the inner sheet holder.

Method and device for press-hardening a metallic formed structure

Apparatus for shaping metal sheets including a shaping tool having an forming space for receiving a metal sheet. At least one heating element is disposed in a recess of the shaping tool for heating at least a portion of the metal sheet, whereby an insulation layer is provided to insulate the heating element from neighboring walls of the shaping tool.

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Oerlinghausen, Germany

Friedrich Bohner