Patents by Inventor Jochen DOERR
Jochen DOERR has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10501829Abstract: 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 T4 or T5 or T6 or T7, heating the aluminum sheet blank to a heating temperature between 100° C. and 450° C., forming the aluminum sheet blank to a structural sheet metal component, and heat post-treatment of the formed structural sheet metal component.Type: GrantFiled: April 25, 2012Date of Patent: December 10, 2019Assignee: BENTELER AUTOMOBILTECHNIK GMBHInventors: Friedrich Bohner, Jochen Dörr, Jochem Grewe
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Patent number: 10029624Abstract: A motor vehicle sheet metal molding of the invention is produced by hot forming from a metal sheet composed of an aluminum alloy which cannot be precipitation hardened, which contains at least magnesium and optionally manganese in addition to aluminum as alloy component. The motor vehicle sheet metal molding after forming has, at least locally, degrees of deformation which are above the forming limit curve of the aluminum alloy at room temperature. To produce the motor vehicle sheet metal molding, the metal sheet is heated at least locally to a temperature in the range from 200° C. to 400° C. over a period of from 1 to 60 seconds. The heated metal sheet is subsequently placed in a forming tool of a forming press and formed to produce the motor vehicle sheet metal molding.Type: GrantFiled: July 29, 2011Date of Patent: July 24, 2018Assignee: BENTELER AUTOMOBILTECHNIK GMBHInventors: Holger Diersmann, Jochen Dörr, Jochem Grewe, Andreas Hitz
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Patent number: 9938613Abstract: 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° C., in particular to 400° C., the blank being kept at a temperature between 15° C. and 30° C., preferably at 20° 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° 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.Type: GrantFiled: April 10, 2015Date of Patent: April 10, 2018Assignee: BENTELER AUTOMOBILTECHNIK GMBHInventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
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Patent number: 9914491Abstract: A method for producing a motor vehicle component, is disclosed having the steps of—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° C. and 350° C., preferably between 200° C. and 300° 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° C. and 350° C. in at least one first region of the blank, and cooling to a temperature lower than 250° C., in particular lower than 200° C., being performed in a second region during or after the deformation.Type: GrantFiled: April 10, 2015Date of Patent: March 13, 2018Assignee: Benteler Automobiltechnik GmbHInventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
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Patent number: 9821859Abstract: 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° C., in particular higher than 400° C., and in a second region to a temperature between 150° C. and 350° C., preferably to 300° 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.Type: GrantFiled: April 10, 2015Date of Patent: November 21, 2017Assignee: BENTELER AUTOMOBILTECHNIK GMBHInventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
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Patent number: 9719161Abstract: 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° C. and 550° 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° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° 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° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching.Type: GrantFiled: April 10, 2015Date of Patent: August 1, 2017Assignee: Benteler Automobiltechnik GmbHInventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
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Publication number: 20160200087Abstract: The invention relates to a support structure (1) for a motor vehicle, said support structure comprising at least one first and one second hollow profile (2, 3), with both hollow profiles being arranged one inside the other in an overlapping region (4) and with both hollow profiles being arranged in the overlapping region (4) in such a way that they abut each other at least in certain regions, wherein the inner first hollow profile (2) has a plurality of beads (5, 11), which extend in the axial direction A and are arranged in the circumferential direction U, at least in the overlapping region (4).Type: ApplicationFiled: January 11, 2016Publication date: July 14, 2016Applicant: BENTELER Automobiltechnik GmbHInventors: Jochen DOERR, Konstantin TATARINOV
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Publication number: 20160053356Abstract: 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° C. and 550° 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° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° 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° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching.Type: ApplicationFiled: April 10, 2015Publication date: February 25, 2016Inventors: Friedrich BOHNER, Jochen DOERR, Jochem GREWE, Christian HIELSCHER, Joern TOELLE, Boris RAUSCHER
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Publication number: 20150353146Abstract: 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° C., in particular higher than 400° C., and in a second region to a temperature between 150° C. and 350° C., preferably to 300° 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.Type: ApplicationFiled: April 10, 2015Publication date: December 10, 2015Inventors: Friedrich BOHNER, Jochen DOERR, Jochem GREWE, Christian HIELSCHER, Joern TOELLE, Boris RAUSCHER
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Publication number: 20150354043Abstract: 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° C., in particular to 400° C., the blank being kept at a temperature between 15° C. and 30° C., preferably at 20° 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° 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.Type: ApplicationFiled: April 10, 2015Publication date: December 10, 2015Inventors: Friedrich BOHNER, Jochen DOERR, Jochem GREWE, Christian HIELSCHER, Joern TOELLE, Boris RAUSCHER
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Publication number: 20150291227Abstract: A method for producing a motor vehicle component, is disclosed having the steps of—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° C. and 350° C., preferably between 200° C. and 300° 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° C. and 350° C. in at least one first region of the blank, and cooling to a temperature lower than 250° C., in particular lower than 200° C.Type: ApplicationFiled: April 10, 2015Publication date: October 15, 2015Inventors: Friedrich BOHNER, Jochen DOERR, Jochem GREWE, Christian HIELSCHER, Joern TOELLE, Boris RAUSCHER
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Publication number: 20150075246Abstract: A tool for hot forming and press hardening a steel structure includes an upper tool and a lower tool, each having a base body made of highly heat conductive material and comprised of at least two segments. The base body of at least one of the upper and lower tools has a cooling channel. Arranged on the base body of at least one of the upper and lower tools is a wear protection shield.Type: ApplicationFiled: September 17, 2014Publication date: March 19, 2015Applicant: Benteler Automobiltechnik GmbHInventors: Jochen Dörr, Christoph Nitschke, Friedrich Bohner, Christian Hielscher
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Publication number: 20130127197Abstract: A motor vehicle sheet metal molding of the invention is produced by hot forming from a metal sheet composed of an aluminum alloy which cannot be precipitation hardened, which sheet is in the material state H12, H14, H16, H18, H19, H22, H24, H26, H28, H32, H34, H36 or H38 in accordance with the European standard EN515:1993 and contains at least magnesium and optionally manganese in addition to aluminum as alloy component. The motor vehicle sheet metal molding after forming has, at least locally, degrees of deformation which are above the forming limit curve of the aluminum alloy at room temperature. To produce the motor vehicle sheet metal molding, the metal sheet is heated at least locally to a temperature in the range from 200° C. to 400° C. over a period of from 1 to 60 seconds. The heated metal sheet is subsequently placed in a forming tool of a forming press and formed to produce the motor vehicle sheet metal molding.Type: ApplicationFiled: July 29, 2011Publication date: May 23, 2013Applicant: Benteler Automobiltechnik GmbHInventors: Holger Diersmann, Jochen Dörr, Jochem Grewe, Andreas Hitz
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Publication number: 20120273098Abstract: 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 T4 or T5 or T6 or T7, heating the aluminum sheet blank to a heating temperature between 100° C. and 450° C., forming the aluminum sheet blank to a structural sheet metal component, and heat post-treatment of the formed structural sheet metal component.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Applicant: Benteler Automobiltechnik GmbHInventors: Friedrich Bohner, Jochen Dörr, Jochem Grewe
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Publication number: 20120018422Abstract: A region of a structural part, which is made of a precipitation-hardened aluminum alloy, is inductively heated to a temperature between 100° C. and 300° C. for a maximum time period of one minute. After undergoing the heating process, the region of the structural part is mechanically shaped by a forming tool.Type: ApplicationFiled: January 19, 2011Publication date: January 26, 2012Applicant: Benteler Automobiltechnik GmbHInventors: Friedrich Bohner, Jochen Dörr, Jochem Grewe, Ulrich Huschen
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Patent number: 8020907Abstract: A bumper for a motor vehicle includes a cross member which is disposed transversely to a side rail of a motor vehicle frame. A crash box is incorporated between the cross member and the side rail, with set bolts being provided to join the crash box to the cross member in the absence of prepunching.Type: GrantFiled: January 20, 2010Date of Patent: September 20, 2011Assignee: Benteler AutomobiltechnikInventors: Michael Wibbeke, Christian Handing, Jochen Dörr, Ulrich Lütke-Bexten, Michael Roll
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Patent number: 7971887Abstract: In a method of making a subframe of a motor vehicle profile elements made of hollow sections of steel are placed in a casting tool. Subsequently, aluminum material is filled into the casting tool to casting around the profile elements so as to form plural cast nodes on the profile elements in spaced-apart relationship.Type: GrantFiled: April 23, 2008Date of Patent: July 5, 2011Assignee: Benteler Automobiltechnik GmbHInventors: Jochen Dörr, Michael Wibbeke
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Patent number: 7823939Abstract: A crash box for installation between a bumper beam and a side rail of a motor vehicle includes an outer tube, and an inner tube which is held inside the outer tube, with the outer and inner tubes being movable in relation to one another. At least one of the inner and outer tubes is provided with a coat of varnish at least in a contact area between the outer pipe and the inner pipe.Type: GrantFiled: March 25, 2009Date of Patent: November 2, 2010Assignee: Benteler Automobiltechnik GmbHInventors: Christian Handing, Jochen Dörr
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Publication number: 20100218860Abstract: Method for producing an open molded sheet metal part from a non-hardenable aluminum alloy that has the following steps: a) a sheet is prepared that is made of a non-hardenable aluminum alloy, the temper of which is H12, H14, H16, H18, H19, H22, H24, H26, H28, H32, H34, H36 or H38 according to European Standard EN 515:1993 and that in addition to aluminum includes at least magnesium and where necessary manganese; b) the aluminum is heated at least locally to a temperature between 200° C. and 350° C. within a period of 1 to 60 seconds; c) the heated sheet is placed in a cold forming die of a forming press and the sheet is formed, creating a molded sheet metal part.Type: ApplicationFiled: February 9, 2010Publication date: September 2, 2010Inventors: Jochen Dörr, Rafael Garcia Gomez, Markus Pellmann
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Publication number: 20100194125Abstract: A bumper for a motor vehicle includes a cross member which is disposed transversely to a side rail of a motor vehicle frame. A crash box is incorporated between the cross member and the side rail, with set bolts being provided to join the crash box to the cross member in the absence of prepunching.Type: ApplicationFiled: January 20, 2010Publication date: August 5, 2010Applicant: Benteler Automobiltechnik GmbHInventors: MICHAEL WIBBEKE, Christian Handing, Jochen Dörr, Ulrich Lütke-Bexten, Michael Roll