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| Number | Title | Issue Date |
| 6679958 | Process of aging an aluminum alloy containing magnesium and silicon An ageing process capable of producing an aluminum alloy with better mechanical properties than possible with traditional ageing procedures. The ageing process employs a dual rate heating technique that comprises a first stage in which the aluminum alloy ... | 01/20/2004 |
| 6627010 | Method for the production of alloys form eutectic alloy systems The present invention concerns procedures for producing an alloy from a eutectic alloy system, in order to form a workpiece for rolling or extrusion purposes by, for example, producing an Al--Mg--Si alloy, which can be precipitation-hardened, which alloy,... | 09/30/2003 |
| 6602364 | Aluminium alloy containing magnesium and silicon An aluminum alloy and a process for treating the aluminum alloy. The alloy contains 0.5 to 2.5% by weight of an alloying mixture of magnesium and silicon, in which the molar ratio of Mg/Si is 0.70 to 1.25, the alloy optionally containing an additional amo... | 08/05/2003 |
| 6551424 | Method for the manufacturing of an aluminium-magnesium-lithium alloy product Method for manufacturing of an aluminum-magnesium-lithium product, comprising the steps of subsequently: (a) providing an aluminum alloy consisting of (in weight %): Mg 3.0-6.0, Li 0.4-3.0, Zn up to 2.0, Mn up to 1.0, Ag up to 0.5, Fe up to 0.3, Si to 0.3... | 04/22/2003 |
| 6524410 | Method for producing high strength aluminum alloy welded structures The present invention relates to a method for fabricating lightweight alloy feedstock for welded structures. Specifically, the method for producing the tubular stock proposed in the present invention enables a bicycle manufacturer to readily weld a lightw... | 02/25/2003 |
| 6454883 | Steering wheel skeleton A one-piece steering wheel skeleton is produced by die casting an aluminum alloy of the Al--Mg--Mn type. Such a steering wheel skeleton has a high strength in combination with a high ductility. An object is to further increase the ductility of such a stee... | 09/24/2002 |
| 6406571 | Heat treatment of formed aluminum alloy products A process of producing a shaped article suitable for use as an automotive body panel intended for finishing by painting and, if necessary, baking. The process comprises obtaining a sheet article made of an aluminum alloy of the 2000 or 6000 series in a T4... | 06/18/2002 |
| 6395111 | Aluminum-based alloy and method for subjecting it to heat treatment An aluminum-based alloy having the following composition, % w/w: Lithium 1.5-1.9 Magnesium 4.1-6.0 Zinc 0.1-1.5 Zirconium 0.05-0.3 Manganese ... | 05/28/2002 |
| 6344096 | Method of producing aluminum alloy sheet for automotive applications The present invention relates to an improved method of producing an aluminum alloy sheet which, in one embodiment, includes roll casting an aluminum alloy strip having a thickness of less than about 0.5 inch and, subsequently, preferably without interveni... | 02/05/2002 |
| 6258465 | Energy absorbing member Provided is an energy absorbing member which makes it possible to induce contraction and deformation into a form of bellows, with Euler's buckle being restrained. An energy absorbing member comprises a hollow extrusion which is made of an aluminum alloy a... | 07/10/2001 |
| 6258463 | Anodized cryogenically treated aluminum The invention relates to a process for producing anodic coatings with superior corrosion resistance and other properties on aluminum and aluminum alloy surfaces by cryogenically treating the aluminum prior to anodizing. The invention also relates to the a... | 07/10/2001 |
| 6074501 | Heat treatment for aluminum casting alloys to produce high strength at elevated temperatures An aluminum casting of composition that is hardenable due to the presence of suitable amounts of silicon, magnesium and, optionally, other hardening constituents such as copper, nickel and the like is heat treated for improved tensile strength at 300° C.... | 06/13/2000 |
| 6045632 | Method for making can end and tab stock End or tab stock and a method for its manufacture in which a low alloy content aluminum alloy is continuously cast to form a hot feedstock, the hot feedstock is rapidly quenched rapidly to prevent substantial precipitation of alloying elements, annealed, ... | 04/04/2000 |
| 5843247 | Extruded articles of age-hardening aluminum alloy and method for production thereof A high-strength extruded article of an age-hardening aluminum alloy capable of educing an achromatic dark gray color after the anodizing treatment thereof and a method for the production thereof are disclosed. The method comprises subjecting an alloy bill... | 12/01/1998 |
| 5772802 | Method for making can end and tab stock Can or lid stock and a method for its manufacture in which a low alloy content aluminum alloy is strip cast to form a hot strip cast feedstock, the hot feedstock is rapidly quenched to prevent substantial precipitation, annealed and quenched rapidly to pr... | 06/30/1998 |
| 5728241 | Heat treatment process for aluminum alloy sheet A process of producing solution heat treated aluminum alloy sheet material comprises subjecting hot- or cold-rolled aluminum alloy sheet to solution heat treatment followed by quenching and, before substantial age hardening has taken place, subjecting the... | 03/17/1998 |
| 5667602 | Alloy for cast components Alloy and cast alloy product ideally suited for use as a component in a vehicle frame or subframe, i.e., body-in-white, comprising an alloy consisting of about 2.00 to 5.00 wt. % magnesium, up to approximately 0.30 wt. % silicon, approximately 0.20 to 1.6... | 09/16/1997 |
| 5643372 | Process for the desensitisation to intercrystalline corrosion of 2000 and 6000 series Al alloys and corresponding products An improvement to a process for treating an aluminum alloy for the series AA 2000 or AA 6000 comprising solution heat treating, quenching and natural or artificial aging, in which conventional heat solution heat treating is defined as solution heat treati... | 07/01/1997 |
| 5616189 | Aluminum alloys and process for making aluminum alloy sheet An alloy of aluminum containing magnesium, silicon and optionally copper in amounts in percent by weight falling within one of the following ranges: (1) 0.4ࣘMgࣘ0.8, 0.2ࣘSiࣘ0.5, 0.3ࣘCuࣘ3.5; (2) 0.8ࣘMgࣘ1.4, 0.2ࣘSiࣘ0.5, Cuࣘ2.5; and (3) 0.4à£... | 04/01/1997 |
| 5571347 | High strength MG-SI type aluminum alloy Disclosed is an improved aluminum base alloy comprising an improved aluminum base alloy comprising 0.2 to 2 wt. % Si, 0.3 to 1.7 wt. % Mg, 0 to 1.2 wt. % Cu, 0 to 1.1 wt. % Mn, 0.01 to 0.4 wt. % Cr, and at least one of the elements selected from the group... | 11/05/1996 |
| 5547633 | Aluminum-titanium alloy The specification describes a ternary alloy of aluminium. The alloy described comprises from 80 to 96% by weight of aluminium and from 4 to 20% by weight of titanium and a third element selected from the group consisting of cobalt, chromium, copper, magne... | 08/20/1996 |
| 5536337 | Method for heat treating a metal component A method for heat treating a metal component uses a first heating system having a first high intensity heating portion to rapidly heat the component to a desired temperature and a second heating portion to maintain the component temperature for solution h... | 07/16/1996 |
| 5529645 | Thin wall casting and process Thin wall lightweight panels which are subjected to high temperature solutioning and rapid quenching to impart high strength properties without distortion, warping or oil-canning. The panels are produced by casting in a mold cavity having an interconnecte... | 06/25/1996 |
| 5527404 | Vehicle frame components exhibiting enhanced energy absorption, an alloy and a method for their manufacture An improved elongate aluminum alloy product, and a method of producing such a product, ideally suited for use as a component in a vehicle frame or subassembly, i.e., body-in-white. The alloy consists of essentially 0.45 to 0.7% magnesium, and about 0.35 t... | 06/18/1996 |
| 5518558 | Aluminum alloy sheets excellent in strength and deep drawing formability and process for manufacturing same A high Mg content Al-Mg alloy sheet for press-forming, having superior strength and deep drawing formability. The alloy has intermetallic compounds containing Cr dispersed into the metal structure thereof. The mean grain diameter of the metal structure ra... | 05/21/1996 |
| 5512112 | Method of making high strength, high toughness aluminum-copper-magnesium-type aluminum alloy A process for producing an aluminum-based alloy composition having improved combinations of strength and fracture toughness. The process includes casting an ingot consisting essentially of 2.5-5.5 percent copper, 0.10-2.30 percent magnesium, with minor am... | 04/30/1996 |
| 5439536 | Method of minimizing strength anisotropy in aluminum-lithium alloy wrought product by cold rolling, stretching and aging Strength anisotropy of aluminum-lithium alloy wrought products is reduced by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching, is subjected to a combination of cold rolling an... | 08/08/1995 |
| 5383986 | Method of improving transverse direction mechanical properties of aluminum-lithium alloy wrought product using multiple stretching steps Strength and ductility for a aluminum-lithium alloy wrought product in the transverse direction is improved by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching is subjected to... | 01/24/1995 |
| 5340418 | Method for producing a cast aluminum vehicle wheel A method for producing a cast aluminum vehicle wheel uses a high intensity electric infrared heating system to heat treat the wheel. The infrared heating system is an indexing-type system which includes a plurality of individual heating stations. A first ... | 08/23/1994 |
| 5336344 | Method for producing a cast aluminum vehicle wheel A method for producing a cast aluminum vehicle wheel uses a high intensity electric infrared heating system to heat treat the wheel. The infrared heating system is an indexing-type system which includes a plurality of individual heating stations. A first ... | 08/09/1994 |
| 5336341 | Infrared radiation element and process of producing the same An infrared radiation element and a process for producing the same. An aluminum alloy material consists essentially of 0.3 to 4.3 weight % of Mn, balance Al, and impurities. The alluminum alloy material is heated for dispersing a precipitate of an Al--Mn ... | 08/09/1994 |
| 5306359 | Method and apparatus for heat treating A method for heat treating an aluminum part is provided. The method includes heat treating the aluminum alloy part with direct radiation from a source of infrared energy until the part attains a desired state of heat treatment. The method and apparatus fu... | 04/26/1994 |
| 5290373 | Evaporable foam casting system utilizing an aluminum-silicon alloy containing a high magnesium content A method of evaporable foam casting of metal articles, such as engine blocks for internal combustion engines. An evaporable foam pattern having a configuration proportionally identical to the article to be cast is positioned in a mold and a finely divided... | 03/01/1994 |
| 5277719 | Aluminum alloy thick plate product and method Disclosed is a method of producing a forged and rolled Al-Zn-Cu-Mg alloy plate product having improved fatigue properties in the long transverse direction. The method comprises providing a body of an Al-Zn-Cu-Mg alloy, working said body by a forging opera... | 01/11/1994 |
| 5273594 | Delaying final stretching for improved aluminum alloy plate properties The present invention provides a method for improving aluminum alloy plate product properties by delaying final stretching of the plate product. During processing of the product, a time interval or intentional delay is provided between the final cold roll... | 12/28/1993 |
| 5240521 | Heat treatment for dispersion strengthened aluminum-base alloy The invention provides a method for heat treating aluminum-base alloys. The method increases stress corrosion resistance after heating of the alloy to temperatures between 100° C. and 150° C. A dispersion strengthened aluminum-base alloy containing lith... | 08/31/1993 |
| 5240522 | Method of producing hardened aluminum alloy sheets having superior thermal stability The present invention provides a method of producing a hardened aluminum alloy sheet having superior thermal stability, the method comprising the steps of: homogenizing an ingot of an aluminum alloy consisting essentially of, in weight percentage, 3.0 to ... | 08/31/1993 |
| 5234514 | Hypereutectic aluminum-silicon alloy having refined primary silicon and a modified eutectic A hypereutectic aluminum-silicon casting alloy having a refined primary silicon particle size and a modified silicon phase in the eutectic. The aluminum base alloy includes from 19% to 30% by weight of silicon and also contains 0.005% to 0.06% by weight o... | 08/10/1993 |
| 5226983 | High strength, ductile, low density aluminum alloys and process for making same The present invention provides a process for making high strength, high ductility, low density rapidly solidified aluminum-base alloys, consisting essentially of the formula Albal Zra Lib Xc, wherein X is at lea... | 07/13/1993 |
| 5171374 | Rapidly solidified superplastic aluminum-lithium alloys and process for making same A rapidly solidified aluminum base lithium containing alloy is subjected to at least one overaging treatment and a plurality of rolling passes. Upon completion of the process, the alloy is comprised of grains having an ultrafine grain size. A predominant ... | 12/15/1992 |
