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| Number | Title | Issue Date |
| 7776168 | Method for the thermal treatment of foundry pieces made from an alloy based on aluminium and foundry pieces with improved mechanical properties A method of heat-treating a casting made of an aluminum-based alloy including an alloy of aluminum, silicon, and magnesium comprising heat treating the casting at a first temperature range for a first duration; gradually cooling the casting to a second temperature h... | 08/17/2010 |
| 7323069 | Squeeze and semi-solid metal (SSM) casting of aluminum-copper (206) alloy To cast a part, an injectable form of an aluminum-copper (206) alloy is generated and the aluminum-copper (206) alloy is injected into a mold. This mold corresponds to the part. In addition, the aluminum-copper (206) alloy is solidified to generate the part and the ... | 01/29/2008 |
| 7252723 | AlCuMg alloys with high damage tolerance suitable for use as structural members in aircrafts New alloys for potential use in applications such as in lower wing skins and fuselage skins are disclosed. Specifically, Mn-free 2×24 alloys potentially suitable for thick plate and thin plate and sheet applications are believed to be novel and to provide unexpecte... | 08/07/2007 |
| 7214279 | Al/Cu/Mg/Ag alloy with Si, semi-finished product made from such an alloy and method for production of such a semi-finished product An Al/Cu/Mg/Mn alloy for the production of semi-finished products with high static and dynamic strength properties has the following composition: 0.3–0.7 wt % silicon (Si), max. 0.15 wt. % iron (Fe), 3.5–4.5 wt % copper (Cu), 0.1–0.5 wt. % manganese (Mn), 0.3â... | 05/08/2007 |
| 7037391 | Heat treatment of age hardenable aluminium alloys utilizing secondary precipitation The process is for ageing heat treatment of an age-hardenable aluminium alloy which has alloying elements in solid solution. The process includes holding the alloy at an elevated ageing temperature which is appropriate for ageing the alloy to promote precipitation o... | 05/02/2006 |
| 7025839 | Heat treatment of age-hardenable aluminum alloys The heat treatment of an age-hardenable aluminium alloy, having alloying elements in solid solution includes the stages of holding the alloy for a relatively short time at an elevated temperature TA appropriate for ageing the alloy; cooling the alloy from... | 04/11/2006 |
| 6994760 | Method of producing a high strength balanced Al-Mg-Si alloy and a weldable product of that alloy 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 composi... | 02/07/2006 |
| 6991689 | Aluminium-lithium alloys An aluminum based alloy having a composition within the following ranges, all of the ranges being in weight percent: lithium 2.0 to 2.8, magnesium 0.4 to 1.0, copper 2.0 to 3.0, manganese 0.7 to 1.2, zirconium up to 0.2 and the balance aluminum, save for incidental ... | 01/31/2006 |
| 6918975 | Aluminum alloy extrusions having a substantially unrecrystallized structure A substantially unrecrystallized extrusion comprising about 3.6 to about 4.2 wt. % copper, about 1.0 to about 1.6 wt. % magnesium, about 0.3 to about 0.8 wt. % manganese, about 0.05 to 0.25% zirconium, the balance substantially aluminum, incidental elements and impu... | 07/19/2005 |
| 6756133 | High temperature aluminum alloy brazing sheet and methods of manufacturing and uses therefor The present invention provides an aluminum alloy brazing sheet material, particularly suitable for charge air cooler applications, comprising a core alloy and a clad brazing alloy, as well as to methods for their manufacture and use. The present invention also provi... | 06/29/2004 |
| 6719859 | High strength aluminum base alloy An improved Si—Cu—Mg—Al base alloy suitable for forming in the semi-solid condition into members such as vehicular members having improved properties. ... | 04/13/2004 |
| 6696175 | Unrecrystallized layer and associated alloys and methods The present invention provides aluminum alloys and layers formed in aluminum alloys as well as methods for their manufacture. Aluminum alloys of the present invention are provided with at least one discrete layer of uncrystallized grains formed therein. A... | 02/24/2004 |
| 6692589 | Aircraft structure element made of an Al-Cu-Mg- alloy A process for forming a structure element, particularly an lower wing element of an aircraft, manufactured from a rolled, extruded or forged product made of an alloy of composition (% by weight) Cu=4.6-5.3, Mg=0.10-0.50, Mn=0.15-0.45, Si | 02/17/2004 |
| 6669792 | Process for producing a cast article from a hypereutectic aluminum-silicon alloy A process for making a cast article from an aluminum alloy includes first casting an article from an alloy having the following composition, in weight percent: In this alloy the ration of Si:Mg is 15-35, and the ratio of Cu:Mg is 4-15. After an article is... | 12/30/2003 |
| 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 |
| 6613167 | Process to improve 6XXX alloys by reducing altered density sites A process for improving 6XXX alloys, such as 6013, preferably includes heating, hot rolling, inter-rolling thermal treatment at a very high temperature such as 1020° F. or more, again hot rolling (with or without subsequent continuous hot rolling or cold... | 09/02/2003 |
| 6528183 | Clad aluminum alloy sheet for aircraft structural parts Clad sheet made up of a core sheet and a cladding layer on one or two core sheet surfaces. The core sheet is formed of an alloy having the composition (% by weight) Si: 0.7-1.3, Mg: 0.6-1.2, Cu: 0.5-1.1, Mn: 0.15-1.0, Zn | 03/04/2003 |
| 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 |
| 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 |
| 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 |
| 6129792 | Corrosion resistant aluminum alloy rolled sheet A process for fabricating an aluminum alloy rolled sheet particularly suitable for use for an automotive body, the process comprising: (a) providing a body of an alloy comprising: about 0.8 to about 1.5 wt. % silicon, about 0.15 to about 0.65 wt. % magnes... | 10/10/2000 |
| 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 |
| 5961752 | 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... | 10/05/1999 |
| 5938867 | Method of manufacturing aluminum aircraft sheet A method of producing an aluminum product comprising providing stock including an aluminum alloy comprising about 4.0 to 4.4 wt. % copper, about 1.25 to 1.5 wt. % magnesium, about 0.35 to 0.5 wt. % manganese, not more than 0.12 wt. % silicon, not more tha... | 08/17/1999 |
| 5922147 | Method and apparatus for simplified production of heat-treatable aluminum alloy castings Method and apparatus for simplified heat-treatment to harden aluminum castings made from heat-treatable aluminum alloys, especially with a copper content of up to 5%, such as the 300-T6 series, for example those cast aluminum parts utilized in the manufac... | 07/13/1999 |
| 5919323 | Corrosion resistant aluminum alloy rolled sheet A process for fabricating an aluminum alloy rolled sheet particularly suitable for use for an automotive body, the process comprising: (a) providing a body of an alloy comprising: about 0.8 to about 1.5 wt. % silicon, about 0.15 to about 0.65 wt. % magnes... | 07/06/1999 |
| 5897720 | Aluminum-copper-magnesium-manganese alloy useful for aircraft applications A product comprising an aluminum base alloy including about 3.8 wt. % copper, about 1.2 wt. % magnesium, about 0.3 to 0.6 wt. % manganese, not more than about 0.15 wt. % silicon, not more than about 0.12 wt. % iron, not more than about 0.1 wt. % titanium,... | 04/27/1999 |
| 5858134 | Process for producing alsimgcu alloy products with improved resistance to intercrystalline corrosion The invention concerns a process for the production of rolled or extruded products of high strength AlSiMgCu aluminium alloy with good intergranular corrosion resistance, comprising the following steps: casting a plate or billet with the following composition ... | 01/12/1999 |
| 5858133 | Method for preparing pre-coated aluminum alloy articles and articles prepared thereby An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also pr... | 01/12/1999 |
| 5833775 | Method for making an improved aluminum alloy sheet product An aluminum alloy sheet and a method for producing an aluminum alloy sheet. The aluminum alloy sheet is useful for forming into drawn and ironed container bodies. The sheet preferably has an after-bake yield strength of at least about 37 ksi and an elonga... | 11/10/1998 |
| 5810949 | Method for treating an aluminum alloy product to improve formability and surface finish characteristics A method is disclosed for treating an aluminum alloy product in order to impart a fine grain structure and thereby improve formability and surface finish characteristics. According to this method, the product is first heated to a first temperature high en... | 09/22/1998 |
| 5766546 | High internal pressure forming of aluminum alloy hollow bodies An alloy suitable for manufacturing components out of a hollow body by high internal pressure forming contains, in wt. %, ______________________________________ Silicon 0.3 to 1.6 Magnesium 0.3 to 1.3 Iron ... | 06/16/1998 |
| 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 |
| 5690758 | Process for the fabrication of aluminum alloy sheet having high formability The invention relates to a fabrication process to obtain aluminum alloy sheet having high formability. In this process, an alloy obtained by alloying Al with Si, Mg, Cu, Mn and Fe, and one or more elements taken from the group of Cr, Zn, Zr and Ti, is sub... | 11/25/1997 |
| 5662750 | Method of manufacturing aluminum articles having improved bake hardenability A method of producing an aluminum article comprising the steps of: (a) providing stock including an aluminum alloy comprising about 1.0 to 1.3 wt.% silicon, about 0.40 to 0.80 wt.% magnesium, about 0.02 to 0.20 wt.% of an element selected from the group c... | 09/02/1997 |
| 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 |
| 5616192 | Coil retainer for engine valve and preparation of the same There is provided a coil retainer for an engine valve to be mounted therewithin, said retainer prepared by forging of an aluminum-based alloy of the following composition; followed by special combined heat treatments to convert into an alloy material havi... | 04/01/1997 |
| 5614037 | Method for preparing pre-coated aluminum articles and articles prepared thereby An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article that is not in its final heat-treated state, and is preferably in its annealed state. A curable organic coating material is also provided. The method includes ... | 03/25/1997 |
