Patents by Inventor Friedrich Behr

Friedrich Behr 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).

  • Patent number: 7248940
    Abstract: In a method for robot-controlled cutting of workpieces to be joined by laser radiation, a first workpiece is arranged in vicinity of a second workpiece in a first position. A laser is focused onto the first workpiece. A contour of the first workpiece is cut with the laser beam; this contour is to be assembled and joined with the second workpiece. During cutting, a first spacing of a focal point of the laser beam from the second workpiece is repeatedly determined in a distance direction that is identically oriented during cutting and is adjusted to a direction of assembling the first and second workpieces. During cutting, a second spacing of a processing point of the laser beam from the second workpiece is maintained at a constant value.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: July 24, 2007
    Assignees: Thyssen Laser-Technik GmbH, Reis GmbH & Co., Maschinenfabrik
    Inventors: Günter Neumann, Friedrich Behr, Axel Fischer, Eberhard Kroth, Stefan Seiler, Franz Som, Rolf P. Maisch, Wolfgang Zesch
  • Patent number: 7176408
    Abstract: In a method for cutting structural components to be joined by laser radiation that is guided by a computer-controlled manipulation system provided with a nominal path for each structural component corresponding to a joining line that is curved as a result of at least one of the structural components being three-dimensionally shaped, the structural component surfaces of the structural components including the joining line are determined measuring technologically. Based on measuring results, the nominal path corresponding to a penetration line of the structural components to be joined is calculated. A marking is formed on a first one of the structural component surfaces. When performing the cut on the structural component surface provided with the marking, the resulting cutting gap and the marking are determining measuring technologically. When a deviation of the cutting gap from the nominal path is detected, the manipulation system is controlled to correct the deviation.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: February 13, 2007
    Assignees: Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V., Thyssen Laser-Technik GmbH, ThyssenKrupp Drauz Nothelfer GmbH
    Inventors: Wolfgang Schulz, Jan Michel, Peter Abels, Gerhard Alber, Jörg Neubert, Friedrich Behr, Stefan Kaierle
  • Publication number: 20060151452
    Abstract: In a method for cutting structural components to be joined by laser radiation that is guided by a computer-controlled manipulation system provided with a nominal path for each structural component corresponding to a joining line that is curved as a result of at least one of the structural components being three-dimensionally shaped, the structural component surfaces of the structural components including the joining line are determined measuring technologically. Based on measuring results, the nominal path corresponding to a penetration line of the structural components to be joined is calculated. A marking is formed on a first one of the structural component surfaces. When performing the cut on the structural component surface provided with the marking, the resulting cutting gap and the marking are determining measuring technologically. When a deviation of the cutting gap from the nominal path is detected, the manipulation system is controlled to correct the deviation.
    Type: Application
    Filed: March 7, 2002
    Publication date: July 13, 2006
    Inventors: Wolfgang Schulz, Jan Michel, Peter Abels, Gerhard Alber, Jorg Neubert, Friedrich Behr, Stefan Kajerle
  • Publication number: 20050237019
    Abstract: In a method for robot-controlled cutting of workpieces to be joined by laser radiation, a first workpiece is arranged in vicinity of a second workpiece in a first position. A laser is focused onto the first workpiece. A contour of the first workpiece is cut with the laser beam; this contour is to be assembled and joined with the second workpiece. During cutting, a first spacing of a focal point of the laser beam from the second workpiece is repeatedly determined in a distance direction that is identically oriented during cutting and is adjusted to a direction of assembling the first and second workpieces. During cutting, a second spacing of a processing point of the laser beam from the second workpiece is maintained at a constant value.
    Type: Application
    Filed: May 16, 2002
    Publication date: October 27, 2005
    Applicants: Thyssen Laser-Technik GmbH
    Inventors: Gunter Neumann, Friedrich Behr, Axel Fischer, Eberhard Kroth, Stefan Seiler, Franz Som, Rolf Maisch, Wolfgang Zesch
  • Patent number: 6673468
    Abstract: The invention concerns a composite material in band or slab form made of two cover plates (1, 2), made of steel, which can be resistance welded together via electrically conductive bodies (4), and an intermediate layer (3) made of a filler material in which the bodies (4) are embedded, with the bodies (4), which are implemented as curved slugs, lying pressed flat between the cover plates (1, 2). This type of composite material is produced in that the filler material (3′) for the intermediate layer (3) is applied as a paste to a band (1′) serving as the first cover plate (1) as it passes by and the curved slugs (4′) are, after being laid on the filler material (3′), pressed into it at least until contact is made via a band (2′) supplied as the second cover plate (2) in a welding gap (8) formed by two roller electrodes (6,7) of a resistance welding device and the slugs are largely pressed flat with the bands (1′, 2′) during welding.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 6, 2004
    Assignee: Thyssen Krupp Stahl AG
    Inventors: Friedrich Behr, Hans-Dieter Gall, Cetin Nazikkol
  • Patent number: 6656305
    Abstract: The invention relates to a process for producing an enamel baked molded component made from a double-layer plate comprising two cover plates with an intermediate epoxy resin layer that is glued to the cover plates. The process comprises introducing the epoxy resin between the cover plates prior to its polymerization to maintain an adhesive connection between the cover plates and the intermediate layer, while at the same time allowing for deformation of the double-layer plate by deep-drawing in particular without subjecting the cover plates to excessive stress. The epoxy resin that is used polymerized exclusively at the enamel baking temperatures, being coherent but not polymerized when the double-layer plate is deformed, while the enamel layer is baked only after the deformed component is lacquered, whereby said baking occurs at a temperature at which polymerization of the epoxy resin of the intermediate layer also occurs.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 2, 2003
    Assignee: Thyssen Krupp Stahl AG
    Inventors: Cetin Nazikkol, Edgar Panek, Friedrich Behr
  • Patent number: 6563083
    Abstract: A laser robot for workpiece machining has a first robot link with a robot hand. A first beam path of a first laser beam is arranged on the longitudinal axis of the first robot link and deflected at an end facing a workpiece into an axis-parallel second beam path. A third beam path guides a second laser beam axis-parallel to the first beam path. Focusing optics are arranged in the robot hand. The two laser beams are guided by the focusing optics onto the workpiece. An optical beam combination device is arranged in one of the first and second beam paths for combining the two laser beams acting simultaneously on the workpiece. The two laser beams are guided from the optical beam combination device to the focusing optics simultaneously and axis-parallel or with coinciding axes and from the focusing optics to the workpiece simultaneously axis-parallel or with coinciding axes.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: May 13, 2003
    Assignee: Thyssen Laser-Technik GmbH
    Inventors: Friedrich Behr, Günter Neumann
  • Patent number: 6536254
    Abstract: The invention relates to a process for the production of tailored blanks by the hot rolling of a strip and to an apparatus for the performance of said process. To obtain tailored blanks to be cut to length from the rolled strip, the hot strip is cooled or heated in portions, so that with a substantially constant rolling force the strip undergoes a differential decrease in thickness in the individual portions, which have been given a differential yield stress value by the differential temperature adjustment.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: March 25, 2003
    Assignee: Thyssen Krupp AG
    Inventors: Rudolf Kawalla, Friedrich Behr, Hans-Peter Schmitz
  • Patent number: 6428905
    Abstract: The invention relates to a double-layered sheet comprising two cover sheets (1, 2) with a space between them, and a fill material (3) which fills the space between said cover sheets. Said fill material is made of plastic, in particular of porous duroplastic plastic, comprising embedded hard bodies (6, 7, 8, 9). In order to obtain the best possible geometrical moment of inertia while keeping the weight per surface area low, and in particular in order to prevent shearing out under pressure, of the cover sheet (1) acting as a compression chord, during pressing together of the double-layered sheet, the fill material is characterised by at least two stress/strain characteristic curves. In particular the fill material comprises pores which are sealed off from each other.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: August 6, 2002
    Assignee: Thyssen Krupp Stahl AG
    Inventors: Friedrich Behr, Klaus Blümel, Horst Mittelstädt, Cetin Nazikkol, Werner Hufenbach, Frank Adam
  • Publication number: 20020074322
    Abstract: A laser robot for workpiece machining has a first robot link with a robot hand. A first beam path of a first laser beam is arranged on the longitudinal axis of the first robot link and deflected at an end facing a workpiece into an axis-parallel second beam path. A third beam path guides a second laser beam axis-parallel to the first beam path. Focusing optics are arranged in the robot hand. The two laser beams are guided by the focusing optics onto the workpiece. An optical beam combination device is arranged in one of the first and second beam paths for combining the two laser beams acting simultaneously on the workpiece. The two laser beams are guided from the optical beam combination device to the focusing optics simultaneously and axis-parallel or with coinciding axes and from the focusing optics to the workpiece simultaneously axis-parallel or with coinciding axes.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 20, 2002
    Applicant: Thyssen Laser-Technik GmbH
    Inventors: Friedrich Behr, Gunter Neumann
  • Publication number: 20010025407
    Abstract: The invention relates to a process for the production of a double-layer metal sheet, more particularly a lacquered shaped construction member comprising such a double layer metal sheet, for example, for the outer skin of a motor vehicle, having an intermediate layer (6) of epoxy resin glued to the two smooth cover sheets (7, 10). After the introduction between the cover sheets (7, 10) of the intermediate layer (6) and of spots (16), distributed over the surface, of an epoxy resin polymerizing at a lower temperature than the epoxy resin of the intermediate layer (6), the cover sheets (7, 10) are fixed spatially in relation to one another by the polymerization of the epoxy resin of the spots (16). Then the resulting composite is shaped. Finally the shaped constructional member (15) obtained is lacquered and the epoxy resin of the intermediate layer (6) polymerized during stove enamelling.
    Type: Application
    Filed: January 17, 2001
    Publication date: October 4, 2001
    Inventors: Gerd Hartmann, Thomas Flehmig, Cetin Nazikkol, Friedrich Behr
  • Patent number: 6065266
    Abstract: The invention relates to a light structural steel plate in the form of a hump plate and to a process for its production. The light structural steel plate comprises a mould-pressed steel hump plate (1) and a flat aluminium plate (3) connected thereto substance-to-substance at a the hump end faces. The substance-to-substance connection is produced by the feature that after the surfaces to be interconnected at the hump end faces have been activated by means of a laser beam (5), said surfaces are metallically connected under pressure. The decisive factor is that the material of the plates (1, 2) does not pass into the molten phase during activation by means of the laser beam (5).
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: May 23, 2000
    Assignee: Thyssen Stahl AG
    Inventors: Friedrich Behr, Klaus Blumel, Hans Pircher
  • Patent number: 6063507
    Abstract: The invention relates to a double-layered sheet metal with a first layer (5) of sheet metal comprising indented knobs (4.sub.I -4.sub.IV ; 4.sub.V -4.sub.VII ; 4.sub.VIII -4.sub.XIII), with several of these knobs forming the corner points of a geometrical segment (8.sub.I, 8.sub.II, 8.sub.III) of the first layer (5) of sheet metal, with a second layer (6) of sheet metal which is connected to the first layer (5) of sheet metal in the area of the tips (4a) of the knobs (4.sub.I -4.sub.IV ; 4.sub.V -4.sub.VII ; 4.sub.VIII -4.sub.XIII), and with a filling (7) made of filling material arranged in the void remaining between the layers (5, 6) of sheet metal. With such a double-layered sheet metal the danger of "total failure" in the case of a load exceeding elastically endured deformation is reduced in that the geometrical segment (8.sub.I, 8.sub.II, 8.sub.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: May 16, 2000
    Assignee: Thyssen Stahl AG
    Inventors: Klaus Blumel, Friedrich Behr, Klaus Gohler, Christian Hager, Uwe Kneiphoff
  • Patent number: 5953949
    Abstract: The invention relates to the production of a metal strip having formed-in thinner areas. To this end the strip B is drawn through a drawing nip 1, 2 formed by the end face of a working roll 3 adjusted at an angle and a support roll 4, which can take the form of a working roll. When drawing takes place through the working nip 1, 2, a rolling force and simultaneously a tensile force transversely of the pulling direction are so exerted on the strip B by the two rolls 3, 4 that the displaced material flows practically exclusively transversely of the pulling direction in the areas to be thinned down.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: September 21, 1999
    Assignee: Thyssen Krupp Stahl AG
    Inventors: Friedrich Behr, Klaus Blumel, Thomas Flehmig
  • Patent number: 4969960
    Abstract: A method for increasing the resistance to thermal shocks of the oxide layer of metallic heat conductive materials which contain 3% to 10% aluminum, 10% to 26% chromium, up to 3% zirconium and/or titanium and/or hafnium and/or niobium and/or silicon and/or 0.002% to 0.3% total of rare earths and/or yttrium in metallic form or as finely dispersed oxides, the remainder being iron and/or nickel and/or cobalt as well as the trace elements normally present in steels. The materials develop primarily aluminum oxide and/or chromium oxide on the surface when heated in a temperature range of 700.degree. C. to 1350.degree. C. in an oxygen-containing atmosphere. The materials are first heated in an oxygen-free atmosphere under conditions which cause recrystallization in their surface zone. They then are oxidized in an atmosphere which contains oxygen in chemically bound form.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: November 13, 1990
    Assignee: Thyssen Edelstahlwerke AG
    Inventors: Gunter Lehnert, Friedrich Behr, Manfred Heinritz, Dieter Gorres
  • Patent number: 4919863
    Abstract: A method of producing a filter for separating solid particles, whose diameters are generally smaller than 5 .mu.m, from flowing gases or liquids. A covering layer with columnar and/or platelet-shaped oxides is formed on a body consisting of porous steel foil at least in and around the pores.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: April 24, 1990
    Assignee: Thyssen Edelstahlwerke AG
    Inventor: Friedrich Behr
  • Patent number: 4863895
    Abstract: Honeycomb bodies for cleaning the exhaust gases of internal combustion engines function as carrier for a wash coat impregnated with a noble metal. The known honeycomb bodies exhibit square conduit cross sections with a cross-sectional area of approximately 1.1.times.1.1 mm.sup.2. The small cross sections result in high flow resistances which are amplified even more by deposits of rather thick layers of wash coat in the corner areas. A considerable diminution of the flow resistances is achieved without reducing the amounts of harmful substances converted while saving honeycomb material if the honeycomb bodies (1) comprise individual conduits (2) which exhibit a ratio of width (3) to height (4) of 1.5 to 15.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: September 5, 1989
    Assignee: Thyssen Edelstahlwerke AG
    Inventor: Friedrich Behr
  • Patent number: 4859338
    Abstract: A filter for separating solid particles, whose diameters are generally smaller than 5 .mu.m, from flowing gases or liquids. A covering layer with columnar and/or platelet-shaped oxides is formed on a body consisting of porous steel foil at least in and around the pores.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: August 22, 1989
    Assignee: Thyssen Edelstahlwerke AG
    Inventor: Friedrich Behr
  • Patent number: 4798631
    Abstract: The invention relates to a metallic semi-finished product based on iron and/or nickel and/or cobalt and containing 2 to 16% of aluminum, 12 to 30% of chromium and at least one highly reactive element X, in particular from the group consisting of the rare earth metals and/or their dispersed oxides. The characteristic feature of the invention is that metallic columnar crystals are formed at least in the surface region of the semi-finished product and columnar crystals consisting predominantly of aluminum oxide and/or chromium oxide grow out of the said metallic columnar crystals, the axes of the two types of columnar crystals being predominantly at right angles to the geometric surface of the semi-finished product.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: January 17, 1989
    Assignee: Thyssen Aktiengesellschaft vorm August Thyssen-Hutte
    Inventors: Hans-Joachim Fleischer, Klaus Lohscheidt, Dieter Gorres, Friedrich Behr
  • Patent number: 4781734
    Abstract: A non-porous hydrogen diffusion membrane, and the utilization thereof for e separation of hydrogen from gas mixtures. The non-porous hydrogen diffusion membrane distinguishes itself in that it is constituted of TiNi or TiAg with an atom ratio of about 1:1. These titanium alloys presently contain about 45 to 55% of atoms of one or the other of the components and are utilized at temperatures in excess of 300.degree. C. in the form of thin sheets of foils.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: November 1, 1988
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Friedrich Behr, Bernd Kugler, Michael Pietsch, Walter Weirich