Patents by Inventor Rinze Benedictus

Rinze Benedictus 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).

  • Publication number: 20060078755
    Abstract: The invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.25, and preferably added in the form of a Misch Metal, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<1.4, Ti<0.25, V<0.25, others each<0.05 and total<0.15, balance aluminium. The invention relates also to a method of manufacturing such an aluminium alloy product.
    Type: Application
    Filed: June 8, 2005
    Publication date: April 13, 2006
    Applicant: Corus Aluminium Walzprodukte GmbH
    Inventors: Rinze Benedictus, Guido Weber, Alfred Haszler, Christian Keidel
  • Publication number: 20060032560
    Abstract: The present invention relates to a method of producing a high damage tolerant aluminium alloy rolled product a high toughness and an improved fatigue crack growth resistance, including the steps of: a.) casting an ingot having a composition selected from the group comprising AA2000, AA5000, AA6000, and AA7000-series alloys; b.) homogenising and/or pre-heating the ingot after casting; c.) hot rolling the ingot into a hot rolled product and optionally cold rolling the hot rolled product into a cold rolled product, wherein the hot rolled product leaves the hot rolling mill at an hot-mill exit temperature (TExit) and cooling the hot rolled product from the TExit to 150° C. or lower with a controlled cooling cycle with a cooling rate falling within the range defined by: T(t)=50?(50?TExit)e?t and wherein T(t) is the temperature (° C.) as function in time (hrs), t is the time (hours) and ? is in the range of ?0.09±0.05 (hrs?1).
    Type: Application
    Filed: October 29, 2004
    Publication date: February 16, 2006
    Applicant: Corus Aluminium Walzprodukte GmbH
    Inventors: Rinze Benedictus, Alfred Heinz, Christian Keidel, Alfred Haszler, Guido Weber
  • Patent number: 6994760
    Abstract: The present invention relates to a method for producing high strength balanced Al—Mg—Si alloy with an improved fatigue crack growth resistance and a low amount of intermetallics, comprising the steps of a) casting an ingot with the following composition (in weight percent) Si: 0.75–1.3, Cu: 0.6–1.1, Mn: 0.2–0.8, Mg: 0.45–0.95, Fe: 0.01–0.3, Zr: <0.25, Cr: <0.25, Zn: <0.35, Ti: <0.25, impurities each less than 0.05 and less than 0.20 in total, balance aluminum, b) optional homogenization of the cast ingot, c) pre-heating the ingot after casting for 4 to 30 hours with temperatures above 520° C., d) hot working the ingot and optionally cold working, e) solution heat treating, and f) quenching the worked product. The pre-heating is preferably performed for 6 to 18 hours with temperatures between 530° C. and 560° C. The alloy has a fatigue crack growth rate at ?K=20 MPa?m of below 9.0E?04 and at ?K=40 MPa?m of below 9.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: February 7, 2006
    Assignee: Corus Aluminium Walzprodukte GmbH
    Inventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
  • Patent number: 6939416
    Abstract: The invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.25, and preferably added in the form of a Misch Metal, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<1.4, Ti<0.25, V<0.25, others each <0.05 and total <0.15, balance aluminium. The invention relates also to a method of manufacturing such an aluminium alloy product.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: September 6, 2005
    Assignee: Corus Aluminium Walzprodukte GmbH
    Inventors: Rinze Benedictus, Guido Weber, Alfred Johann Peter Haszler, Christian Joachim Keidel
  • Publication number: 20050189044
    Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9Mg?0.6)?Cu?(0.9Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.
    Type: Application
    Filed: April 9, 2004
    Publication date: September 1, 2005
    Inventors: Rinze Benedictus, Christian Keidel, Alfred Heinz, Nedia Telioui
  • Publication number: 20050081965
    Abstract: The invention relates to an aluminium alloy wrought product with high strength and fracture toughness and high fatigue resistance and low fatigue crack growth rate, and having a composition for the alloy comprising, in weight %, about 0.3 to 1.0% magnesium (Mg), about 4.4 to 5.5% copper (Cu), about 0 to 0.20% iron (Fe), about 0 to 0.20% silicon (Si), about 0 to 0.40% zinc (Zn), and Mn in a range 0.15 to 0.8 as a dispersoids forming element in combination with one or more of dispersoids forming elements selected from the group consisting of: (Zr, Sc, Cr, Hf, Ag, Ti, V), in ranges of: about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 1.0% silver (Ag), the balance being aluminium (Al) and other incidental elements, and whereby there is a limitation of the Cu—Mg content such that ?1.1[Mg]+5.38?[Cu]?5.5. The invention further relates to a method of manufacturing such a product.
    Type: Application
    Filed: May 28, 2004
    Publication date: April 21, 2005
    Inventors: Rinze Benedictus, Christian Keidel, Alfred Heinz, Hinrich Hargarter
  • Publication number: 20050079376
    Abstract: The present invention a high strength aluminium alloy brazing sheet, comprising an Al—Zn core layer and at least one clad layer, the core layer including the following composition (in weight percent): Zn 1.2 to 5.5 Mg 0.8 to 3.0 Mn 0.1 to 1.0 Cu <0.2 Si ?<0.35 Fe <0.5 optionally one or more of: Zr <0.3 Cr <0.3 V <0.3 Ti <0.2 Hf <0.3 Sc <0.5, the balance aluminium and incidental elements and impurities. The clad layer includes an Al—Si based filler alloy and is applied on at least one side of the core layer. The invention relates furthermore to a brazed assembly including such brazing sheet, to the use of such brazing sheet and to method for producing an aluminium alloy brazing sheet.
    Type: Application
    Filed: August 26, 2004
    Publication date: April 14, 2005
    Applicant: CORUS ALUMINIUM WALZPRODUKTE GMBH
    Inventors: Rinze Benedictus, Achim Burger, Alfred Haszler
  • Publication number: 20050064226
    Abstract: Disclosed is a high strength aluminium alloy brazing sheet, including an Al—Cu core layer and at least one clad layer, the core layer having the following composition (in weight percent): Cu: 1.2-4.0, Mn: 0.06-1.5, Mg: 0.06-1.5, Si: up to 0.5, Zn: <0.4, Zr: ?0.25, Fe: ?0.5, Ti: ?0.25, Cr: ?0.25; V?0.25; the balance substantially aluminium and impurities, the clad layer including an Al—Si based filler alloy and being applied on at least one side of the core layer. Also disclosed is a brazed assembly including the brazing sheet and the use of the brazing sheet for a brazing application such as a heat exchanger.
    Type: Application
    Filed: July 15, 2004
    Publication date: March 24, 2005
    Inventors: Rinze Benedictus, Achim Burger, William Miller, Alfred Haszler
  • Publication number: 20050034794
    Abstract: The present invention relates to a high strength Al—Zn alloy product with an improved combination of corrosion resistance and toughness, the alloy including essentially (in weight percent): Zn: 6.0-9.5, Cu: 1.3-2.4, Mg: 1.5-2.6, Mn and Zr<0.25 but preferably in a range between 0.05 and 0.15 for higher Zn contents, other elements each less than 0.05 and less than 0.25 in total, balance aluminium, wherein (in weight percent): 0.1[Cu]+1.3<[Mg]<0.2[Cu]+2.15. The invention also relates to a method to produce these alloy products, and to some preferred applications thereof such as upper wing applications in aerospace.
    Type: Application
    Filed: April 7, 2004
    Publication date: February 17, 2005
    Inventors: Rinze Benedictus, Christian Keidel, Alfred Heinz
  • Publication number: 20050006010
    Abstract: The present invention relates to a method for producing a high strength Al—Zn—Cu—Mg alloy with an improved fatigue crack growth resistance and a high damage tolerance, comprising the steps of casting an ingot with the following composition (in weight percent) Zn 5.5-9.5, Cu 1.5-3.5, Mg 1.5-3.5, Mn<0.25, Zr<0.25, Cr<0.10, Fe<0.25, Si<0.25, Ti<0.10, Hf and/or V<0.25, other elements each less than 0.05 and less than 0.15 in total, balance aluminum, homogenizing and/or pre-heating the ingot after casting, hot working the ingot and optionally cold working into a worked product of more than 50 mm thickness, solution heat treating, quenching the heat treated product, and artificially ageing the worked and heat-treated product, wherein the ageing step comprises a first heat treatment at a temperature in a range of 105° C. to 135° C. for more than 2 hours and less than 8 hours and a second heat treatment at a higher temperature than 135° C. but below 170° C.
    Type: Application
    Filed: June 9, 2003
    Publication date: January 13, 2005
    Inventors: Rinze Benedictus, Christian Keidel, Alfred Heinz
  • Publication number: 20040112480
    Abstract: The present invention concerns a balanced Al—Cu—Mg—Si alloy having a high toughness, good strength levels and an improved fatigue crack growth resistance, comprising essentially the following composition (in weight percent) : Cu: 3.6-4.9, Mg: 1.0-1.8, Mn:≦0.50, preferably <0.30, Si: 0.10-0.40, Zr:≦0.15, Cr:≦0.15, Fe:≦0.10, the balance essentially aluminum and incidental elements and impurities. There is also disclosed a method for producing the balanced Al—Cu—Mg—Si alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.
    Type: Application
    Filed: August 18, 2003
    Publication date: June 17, 2004
    Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
  • Publication number: 20040099353
    Abstract: Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50 , Fe≦0.15, Si≦0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.
    Type: Application
    Filed: August 18, 2003
    Publication date: May 27, 2004
    Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
  • Publication number: 20040062946
    Abstract: The present invention relates to a method for producing high strength balanced Al—Mg—Si alloy with an improved fatigue crack growth resistance and a low amount of intermetallics, comprising the steps of
    Type: Application
    Filed: June 2, 2003
    Publication date: April 1, 2004
    Inventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
  • Publication number: 20040060618
    Abstract: Disclosed is an Al—Cu alloy of the AA2000-series alloys with high toughness and an improved strength, including the following composition (in weight percent) Cu 4.5-5.5, Mg 0.5-1.6, Mn≧0.80, Zr≧0.18, Cr≧0.18, Si≧0.15, Fe≧0.15, the balance essentially aluminum and incidental elements and impurities, and wherein the amount (in weight %) of magnesium is either: (a) in a range of 1.0 to 1.6%, or alternatively (b) in a range of 0.50 to 1.2% when the amount of dispersoid forming elements such as Cr, Zr or Mn is controlled and (in weight %) in a range of 0.10 to 0.70%.
    Type: Application
    Filed: August 13, 2003
    Publication date: April 1, 2004
    Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler, Hinrich Johannes Wilhelm Hargarter
  • Publication number: 20030087122
    Abstract: The invention relates to a weldable, high-strength aluminum alloy rolled product containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 0.45, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<0.35, Ti<0.25, V<0.25, others each <0.05 and total <0.15, balance aluminum, and further with the proviso that the weight percent of “available Si” is in the range of 0.86 to 1.15, preferably in the range of 0.86 to 1.05. The weight percentage (“wt.
    Type: Application
    Filed: July 5, 2002
    Publication date: May 8, 2003
    Inventors: Rinze Benedictus, Guido Weber, Alfred Johann Peter Haszler, Christian Joachim Keidel
  • Publication number: 20030087123
    Abstract: The invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.25, and preferably added in the form of a Misch Metal, Fe 0.01 to 0.3, Zr <0.25, Cr <0.25, Zn <1.4, Ti <0.25, V <0.25, others each <0.05 and total <0.15, balance aluminium. The invention relates also to a method of manufacturing such an aluminium alloy product.
    Type: Application
    Filed: July 10, 2002
    Publication date: May 8, 2003
    Inventors: Rinze Benedictus, Guido Weber, Alfred Johann Peter Haszler, Christian Joachim Keidel