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| Number | Title | Issue Date |
| 8168015 | Direct quench heat treatment for aluminum alloy castings A heat treatment method for the direct quench of aluminum alloy castings is presented. An aluminum alloy casting can be heated to the solutionizing temperature. The temperature can be maintained for a period of time sufficient to dissolve the hardening elements into... | 05/01/2012 |
| 8163113 | Thermomechanical processing of aluminum alloys A cast aluminum alloy containing up to about 0.35% by weight chromium is heated to a first elevated temperature to homogenize the casting and dissolve the chromium content in an aluminum-based matrix phase. The alloy is then heated at a lower elevated temperature to... | 04/24/2012 |
| 7494554 | Method for continuous manufacturing of cast articles utilizing one or more fluidized beds for heat treating and aging purposes A method for the continuous manufacturing of complex cast articles utilizing one or more fluidized beds for heat treatment and aging purposes is herein disclosed. The inventive method contemplates in-line casting, heat treating, quenching, aging and machining of a c... | 02/24/2009 |
| 7364630 | Al-Mg-Si alloy sheet excellent in surface properties, manufacturing method thereof, and intermediate material in the manufacturing thereof The present invention provides an Al—Mg—Si alloy sheet in which the production of ridging marks during press forming is noticeably inhibited, and in addition, provides a manufacturing method capable of providing such an aluminum alloy sheet, and an intermediate ... | 04/29/2008 |
| 7338629 | Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ... | 03/04/2008 |
| 7290423 | Roller hemming apparatus and method Various embodiments of roller hemming apparatus and methods are disclosed including one wherein multiple rollers are carried on a single mount to hem a flange in a single pass, another including induction heating and air quenching means movable with a roller to anne... | 11/06/2007 |
| 7275582 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 10/02/2007 |
| 7258755 | Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th... | 08/21/2007 |
| 7217331 | Method for shaping structures comprised of aluminum alloys A method is provided for forming complex structures from aluminum alloys, particularly from naturally hard AlMg alloys, naturally hard AlMgSc alloys and/or age-hardenable AlMgLi alloys. The method, in a simple manner by means of as few process steps as possible, for... | 05/15/2007 |
| 7125459 | High strength aluminum alloy A process for thermally treating an article made from an alloy comprising at least aluminum and copper. The process comprises solid solution heat treating the article, quenching the article, heating the article to a first temperature of from about 275 to about 340°... | 10/24/2006 |
| 7105067 | Method to increase the toughness of aluminum-lithium alloys at cryogenic temperatures A method to increase the toughness of the aluminum-lithium alloy C458 and similar alloys at cryogenic temperatures above their room temperature toughness is provided. Increasing the cryogenic toughness of the aluminum-lithium alloy C458 allows the use of alloy C458 ... | 09/12/2006 |
| 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 |
| 7025927 | Hot air blowing type fluidized-bed furnace, rotary heat-treatment furnace, heat-treatment apparatus, and method of heat treatment A heat-treatment apparatus including a first furnace for heat treatment and solution treatment of a work piece, and a second furnace for heat treatment and aging treatment of a work piece, wherein each furnace includes a dispersion tube cantilevered and immersed wit... | 04/11/2006 |
| 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 |
| 7018489 | Artificial aging control of aluminum alloys A method of artificially aging an aluminum alloy product to achieve a property in the product having the steps of aging the product to achieve the property by heating the product over an aging period, the aging period including a time period where the product is in ... | 03/28/2006 |
| 7007368 | Hem construction for vehicular closure structure A hem joint for a vehicular closure structure assembled from stamped sheet metal includes an inner panel having circular raised anchor pins formed integrally with the inner panel prior to assembly of the inner panel with an outer panel. A flange formed from the oute... | 03/07/2006 |
| 6901990 | Method and system for processing castings A method and system of processing castings is provided in which one or more castings are deposited into a mobile furnace and moved from one station to another of a multi-station casting processing system. The interior of the mobile furnace is heated so as to maintai... | 06/07/2005 |
| 6884966 | Method and apparatus for forming and heat treating structural assemblies There are provided an apparatus and an associated method for manufacturing superplastically formed structural assemblies from preforms. The apparatus includes first and second co-operable dies structured to define a die cavity therebetween for at least partially rec... | 04/26/2005 |
| 6869490 | High strength aluminum alloy A process for thermally treating an article made from an alloy comprising at least aluminum and copper. The process comprises solid solution heat treating the article, quenching the article, heating the article to a first temperature of from about 275 to about 340°... | 03/22/2005 |
| 6858103 | Method of optimizing heat treatment of alloys by predicting thermal growth The present invention discloses a method for optimizing heat treatment of precipitation-hardened alloys having at least one precipitate phase by decreasing aging time and/or aging temperature using thermal growth predictions based on a quantitative model. The method... | 02/22/2005 |
| 6752885 | Method for the treatment of structure castings from an aluminum alloy to be used therefor A process for the heat treatment of structure castings made from an aluminum alloy, comprising the steps of: placing the structure casting onto a contour-embracing product receiving device, heating to 490° C. over the course of approximately 30 minutes, holding the... | 06/22/2004 |
| 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 |
| 6648992 | Heat treatment methods for sliding bearings made of age-hardened aluminum materials A heat treatment method for sliding bearings made of age-hardened aluminum materials includes an aluminum material that is artificially age-hardened for a time that is less than the time specified for reaching a maximum hardness, and a coating of a thermo... | 11/18/2003 |
| 6524409 | Method for hot isostatic pressing and heat treatment of light alloy castings A method of producing light alloy castings by foundry technology in which, after solidification and shake-out, the casting is subjected to a heat-treatment cycle comprising a solution heat-treatment step at a temperature high enough to put into solution t... | 02/25/2003 |
| 6419769 | Aluminum-silicon alloy having improved properties at elevated temperatures and process for producing cast articles therefrom 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: Silicon 11.0-14.0 Copper ... | 07/16/2002 |
| 6413654 | Multi-layered plain bearing and producing method thereof Disclosed is a multi-layered plain bearing which comprises a steel back, an intermediate layer made of an aluminum alloy and an aluminum-base bearing alloy layer comprising one or more elements selected from the group consisting of Cu, Zn, Mg and Si. The ... | 07/02/2002 |
| 6403230 | 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... | 06/11/2002 |
| 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 |
| 6264771 | Process for forming a plate-like component This invention provides a method of forming a component made of an artificially and plastically formable material which can be hardened by artificial aging. The component is first shot-peen-formed in the unhardened condition and is subsequently, artificia... | 07/24/2001 |
| 6259071 | Single-point temperature control system for a multi-section line furnace A single-point temperature control system is used with a multi-section furnace to control the exit temperature of a metal workpiece discharged from the furnace. The furnace consists of at least first, second and third sections. The temperature is sensed 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 |
| 6224693 | Method and apparatus for simplified production of heat treatable aluminum alloy castings with artificial self-aging Simplified heat-treatment in making aluminum alloys castings of the type improved by aging, especially for automotive engine cylinder heads and motor blocks. The castings, after solidification and extraction from their molds, each have an end product (wor... | 05/01/2001 |
| 6221515 | Bimetallic strip for a sliding bearing and process for producing said bimetallic strip A bimetallic strip for a sliding bearing having a sliding strip of an aluminum alloy which is adhered to a steel supporting strip and method of manufacture. The composition of the sliding strip is from 3 to 30% of tin; from 1 to 6% of silicon and the rema... | 04/24/2001 |
| 6113711 | Extrusion of aluminum-lithium alloys Disclosed is a method of making lithium-containing aluminum base alloy extrusion having at least a section thereof having a low aspect ratio or which is generally axisymmetrical, the extrusions having improved properties in sections thereof having the low... | 09/05/2000 |
| 6074498 | Heat treated Al-Cu-Li-Sc alloys A dual aging treatment of aluminum-copper-lithium-scandium alloys allows preparation of alloys exhibiting superior physical properties as compared to the same alloys subjected to only a single aging. In particular, the difference between yield strength an... | 06/13/2000 |
| 6066392 | Al material excellent in thermal crack resistance and corrosion resistance An Al material having an anodic oxidation film is provided that is excellent in gas and plasma corrosion resistance. By the present invention, a crack is not generated in the anodic oxidation film even in high temperature thermal cycles and corrosive gas ... | 05/23/2000 |
| 6045636 | Method for sliver elimination in shearing aluminum sheet Age-hardened aluminum alloy sheet can be subjected to a shearing operation, such as trimming or piercing, with reduced sliver formation by first heating the region to be sheared to a temperature above about 250° C., immediately quenching the heated regio... | 04/04/2000 |
| 6033499 | Process for stretch forming age-hardened aluminum alloy sheets In the stretch forming of aluminum alloys using a punch and a mating die cavity, the stretch formability of a sheet of age-hardened aluminum alloy is increased by selectively heat treating the sheet to soften at least a portion of the sheet that will unde... | 03/07/2000 |
