Patents by Inventor Alfred Johann Peter Haszler
Alfred Johann Peter Haszler 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: 9314826Abstract: This relates to a method of the manufacture of a thick gauge aluminum alloy plate having reduced level of residual stress. The method includes (a) providing a solution heat-treated and quenched aluminum alloy plate having a thickness of at least 80 mm, (b) stress-relieving the plate by cold rolling the plate to achieve a reduction in the thickness direction of the plate product in a range of at most 8%.Type: GrantFiled: January 15, 2010Date of Patent: April 19, 2016Assignee: ALERIS ROLLED PRODUCTS GERMANY GMBHInventors: Ingo Günther Kröpfl, Alfred Johann Peter Haszler
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Publication number: 20120042995Abstract: This relates to a method of the manufacture of a thick gauge aluminum alloy plate having reduced level of residual stress. The method includes (a) providing a solution heat-treated and quenched aluminum alloy plate having a thickness of at least 80 mm, (b) stress-relieving the plate by cold rolling the plate to achieve a reduction in the thickness direction of the plate product in a range of at most 8%.Type: ApplicationFiled: January 15, 2010Publication date: February 23, 2012Inventors: Ingo Günther Kröpfl, Alfred Johann Peter Haszler
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Patent number: 7815758Abstract: 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: GrantFiled: November 30, 2007Date of Patent: October 19, 2010Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Patent number: 7604704Abstract: 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: GrantFiled: August 18, 2003Date of Patent: October 20, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Patent number: 7514155Abstract: 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: GrantFiled: July 15, 2004Date of Patent: April 7, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Achim Bürger, William Sinclair Miller, Alfred Johann Peter Haszler
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Patent number: 7494552Abstract: 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: GrantFiled: August 13, 2003Date of Patent: February 24, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler, Hinrich Johannes Wilhelm Hargarter
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Publication number: 20080121317Abstract: 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: ApplicationFiled: November 30, 2007Publication date: May 29, 2008Applicant: Aleris Aluminum Koblenz GmbHInventors: Rinze BENEDICTUS, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Patent number: 7323068Abstract: 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: GrantFiled: August 18, 2003Date of Patent: January 29, 2008Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Patent number: 7226669Abstract: 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: GrantFiled: August 26, 2004Date of Patent: June 5, 2007Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Achim Burger, Alfred Johann Peter Haszler
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Patent number: 6994760Abstract: 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: GrantFiled: June 2, 2003Date of Patent: February 7, 2006Assignee: Corus Aluminium Walzprodukte GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
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Patent number: 6939416Abstract: 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: GrantFiled: July 10, 2002Date of Patent: September 6, 2005Assignee: Corus Aluminium Walzprodukte GmbHInventors: Rinze Benedictus, Guido Weber, Alfred Johann Peter Haszler, Christian Joachim Keidel
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Patent number: 6929706Abstract: An aluminum-magnesium alloy for casting operations consisting of, in weight percent, Mg 2.7-6.0, Mn 0.4-1.4, Zn 0.10-1.5, Zr 0.3 max., V 0.3 max., Sc 0.3 max., Ti 0.2 max., Fe 1.0 max., Si 1.4 max., balance aluminum and inevitable impurities. The casting alloy is particularly suitable for application in die-casting operations. Further the invention relates to the method of use of the casting alloy for die-casting automotive components.Type: GrantFiled: February 12, 2004Date of Patent: August 16, 2005Assignees: Corus Aluminium Voerde GmbH, Corus Aluminium Walzprodukte GmbHInventors: Martinus Godefridus Johannes Spanjers, Desikan Sampath, Alfred Johann Peter Haszler
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Patent number: 6848233Abstract: A composite aluminium panel comprising two parallel plates and/or sheets secured to the peaks and troughs of a corrugated aluminium stiffener sheet between the parallel plates and/or sheets, wherein the corrugated aluminium stiffener sheet is made from an aluminium alloy rolled sheet of composition (in weight percent): Mg 1.5-6.0, Mn 0.3-1.4, Zn 0.4-5.0, Fe up to 0.5, Si up to 0.5, Zr up to 0.30; optionally one or more of Cr 0.05-0.3, Ti 0.01-0.20, V 0.05-0.25, Ag 0.05-0.40, and Cu up to 0.40; and other elements up to 0.05 each, 0.15 total, with a balance of Al; and having in an H-condition or in an O-condition a ratio of PS/UTS in the range of 0.4 to 0.9 and having good roll formability.Type: GrantFiled: October 29, 1999Date of Patent: February 1, 2005Assignee: Corus Aluminium Walzprodukte GmbHInventors: Alfred Johann Peter Haszler, Desikan Sampath, Klaus Alfons Mechsner
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Publication number: 20040161359Abstract: An aluminum-magnesium alloy for casting operations consisting of, in weight percent, Mg 2.7-6.0, Mn 0.4-1.4, Zn 0.10-1.5, Zr 0.3 max., V 0.3 max., Sc 0.3 max., Ti 0.2 max., Fe 1.0 max., Si 1.4 max., balance aluminum and inevitable impurities. The casting alloy is particularly suitable for application in die-casting operations. Further the invention relates to the method of use of the casting alloy for die-casting automotive components.Type: ApplicationFiled: February 12, 2004Publication date: August 19, 2004Inventors: Martinus Godefridus Johannes Spanjers, Desikan Sampath, Alfred Johann Peter Haszler
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Patent number: 6773664Abstract: An aluminum-magnesium alloy for casting operations consisting of, in weight percent, Mg 2.7-6.0, Mn 0.4-1.4, Zn 0.10-1.5, Zr 0.3 max., V 0.3 max., Sc 0.3 max., Ti 0.2 max., Fe 1.0 max., Si 1.4 max., balance aluminum and inevitable impurities. The casting alloy is particularly suitable for application in die-casting operations. Further the invention relates to the method of use of the casting alloy for die-casting automotive components.Type: GrantFiled: March 26, 2001Date of Patent: August 10, 2004Assignees: Corus Aluminium Voerde GmbH, Corus Aluminium Walzprodukte GmbHInventors: Martinus Godefridus Johannes Spanjers, Desikan Sampath, Alfred Johann Peter Haszler
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Publication number: 20040112480Abstract: 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: ApplicationFiled: August 18, 2003Publication date: June 17, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Publication number: 20040109787Abstract: Aluminium-magnesium alloy product for welded mechanical construction, having the following composition, in weight percent:- 1 Mg 3.5-6.0 Mn 0.4-1.2 Zn 0.4-1.5 Zr 0.25 max. Cr 0.3 max. Ti 0.2 max. Fe 0.5 max. Si 0.5 max. Cu 0.4 max.Type: ApplicationFiled: December 3, 2003Publication date: June 10, 2004Inventors: Alfred Johann Peter Haszler, Desikan Sampath
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Publication number: 20040099353Abstract: 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: ApplicationFiled: August 18, 2003Publication date: May 27, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
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Publication number: 20040062946Abstract: 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 ofType: ApplicationFiled: June 2, 2003Publication date: April 1, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
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Publication number: 20040060618Abstract: 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: ApplicationFiled: August 13, 2003Publication date: April 1, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler, Hinrich Johannes Wilhelm Hargarter