| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 148695000 | With working | 32 |
| 20080223492 | Edge-On Stress-Relief of Aluminum Plates - In accordance with the present invention, there are provided methods for the manufacture of aluminum alloy plates having reduced levels of residual stress as well as plates and products employing such plates. Processes of the present invention involve providing a solution heat-treated and quenched aluminum alloy plate with a thickness of at least 5 inches, and stress relieving the plate by performing at least one compressing step at a total rate of 0.5 to 5% permanent set along the longest or second longest edge of the plate. In the method, the dimension of the plate where the compression step is performed is along the longest or second longest edge of the plate, which is preferably no less than twice and no more than eight times the thickness of the plate. In further accordance with the present invention, there are provided stress-relieved alloys and plates that are provided with superior W | 09-18-2008 |
| 20080289732 | ALUMINIUM-MAGNESIUM ALLOY PRODUCT - Method for making an aluminium-magnesium alloy in the form of a rolled product, having the composition in weight percent of: Mg 4.8-5.6, Mn 0.05-0.4, Zn 0.40-0.6, Cu 0.06-0.35, Cr 0.25 max., Fe 0.35 max., Si 0.25 max., Zr 0.12 max., Ti 0.3 max., others (each) max. 0.05, (total) max. 0.15, and balance aluminium. | 11-27-2008 |
| 20090038720 | Heat Treatment of Aluminium Alloy High Pressure Die Castings - A method for the heat treatment of a casting produced by high pressure die casting, that may exhibit blister forming porosity in the as-cast condition, of an age-hardenable aluminium alloy, includes solution treating the casting by heating the casting to and within a temperature range enabling solute elements to be taken into solid solution. The casting then is cooled to terminate the solution treatment by quenching the casting to a temperature below 100° C. The cooled casting is held in a temperature range enabling natural and/or artificial ageing. The solution treatment is conducted to achieve a level of solute element solution enabling age-hardening without expansion of pores in the casting causing unacceptable blistering of the casting. | 02-12-2009 |
| 20090301616 | WEAR-RESISTANT ALUMINUM ALLOY MATERIAL WITH EXCELLENT WORKABILITY AND METHOD FOR PRODUCING THE SAME - A wear-resistant aluminum alloy material excellent in workability and wear-resistance is provided. | 12-10-2009 |
| 20100012236 | HEAT TREATMENT METHOD OF ALUMINUM ALLOY PANEL - The present invention provides a heat treatment method of an aluminum alloy panel, which can prevent surface curvature of molded aluminum alloy panel. For this purpose, the present heat treatment methods comprise: cold rolling an aluminum alloy panel at a reduction ratio of 45 to 50% at a final pass in a cold rolling process; first heat-treating the cold-rolled aluminum alloy panel at 450 to 510° C. for 3 hours; rapidly cooling the heat-treated aluminum alloy panel at a rate 60° C./sec or higher after the first heat treatment; and second heat-treating the rapidly cooled aluminum alloy panel at 200 to 220° C. | 01-21-2010 |
| 20100218860 | Method for producing a molded sheet metal part from an as-rolled, non-hardenable aluminum alloy - Method for producing an open molded sheet metal part from a non-hardenable aluminum alloy that has the following steps:
| 09-02-2010 |
| 20100319820 | PROCESS FOR PRODUCING ALUMINUM ALLOY MATERIAL AND HEAT TREATED ALUMINUM ALLOY MATERIAL - According to the present invention, a process for producing an aluminum alloy material, whereby reduction in toughness and in fatigue strength of the aluminum alloy material can be inhibited even after solution treatment is provided. Also, the following is provided: a process for producing an aluminum alloy material comprising at least the steps of subjecting a heat treatable aluminum alloy material to solution treatment and applying aging treatment to the aluminum alloy material subjected to solution treatment, which further comprises the following step between the solution treatment step and the aging treatment step: the step of subjecting the aluminum alloy material to plastic forming in a manner such that a given amount of equivalent strain is imparted to the aluminum alloy material from at least two directions while the aluminum alloy material subjected to solution treatment is maintained under temperature conditions that do not cause softening of the aluminum alloy material by over-aging. | 12-23-2010 |
| 20100319821 | ANNEALING OF COLD ROLLED METAL STRIP - A cold rolled strip ( | 12-23-2010 |
| 20110048591 | METHOD FOR HEAT TREATING A ROLLING STOCK MADE OF A HEAT-TREATABLE ALUMINUM ALLOY - A method and an apparatus are shown for heat treating a rolling stock ( | 03-03-2011 |
| 20110253272 | Method for manufacturing safety vent on cover of lithium-ion battery - A method for manufacturing a safety vent on a cover of a lithium-ion battery has punching the cover to form an annular recess and the cover made of aluminum alloy; heating the annular recess to a temperature between 200° C.˜500° C.; cooling the annular recess; and obtaining the safety vent on the cover of the lithium-ion battery. The aluminum alloy can be heated to a specific temperature for lowering its stress, so a thickness between a lower surface of the cover and a bottom of the annular recess is neither necessary to be precisely controlled, so retaining yield of lithium-ion batter | 10-20-2011 |
| 20120042995 | Method for the Manufacture of an Aluminium Alloy Plate Product Having Low Levels of Residual Stress - 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%. | 02-23-2012 |
| 20120085470 | HOT THERMO-MECHANICAL PROCESSING OF HEAT-TREATABLE ALUMINUM ALLOYS - The invention includes the hot thermo-mechanical processing of heat-treatable aluminum alloys comprising preparation of the billet material, heating the billet to obtain the temperature for solution treatment, holding the billet at this temperature a sufficient amount of time required for the dissolution of soluble elements, cooling the billet to the temperature necessary for plastic deformation with essential preservation of the solid solution, plastic deformation, immediate quenching of the billet after plastic deformation, and then billet aging at the corresponding temperature and time. Additional plastic deformation may be used between stages of quenching and aging. An embodiment specifies cooling rate, forging temperature and strain rate. | 04-12-2012 |
| 20120152416 | PROCESS FOR FORMING ALUMINIUM ALLOY SHEET COMPONENTS - The method relates to a method of forming an Al-alloy sheet component. The method comprises heating an Al-alloy sheet blank to its Solution Heat Treatment temperature at a heating station and, in the case of alloys not in a pre age hardened temper, maintaining the SHT temperature until Solution Heat Treatment is complete. The sheet blank is then transferred to a set of cold dies and forming is initiated within | 06-21-2012 |
| 20120193001 | ALUMINUM BASED ANODES AND PROCESS FOR PREPARING THE SAME - Disclosed is a method for preparing an aluminum-based anode, including at least one alloying element, prepared using solid solution heat treatment, in addition to plastic deformation, artificial aging, or a combination thereof. | 08-02-2012 |
| 20120273098 | METHOD FOR PRODUCING A STRUCTURAL SHEET METAL COMPONENT, AND A STRUCTURAL SHEET METAL COMPONENT - A method for producing a structural sheet metal component formed from an aluminum alloy for a motor vehicle includes providing an aluminum sheet blank in a state T | 11-01-2012 |
| 20140053959 | HEAT TREATMENT PROCESS OF HIGH-MG ER-MICROALLOYED ALUMINUM ALLOY COLD-ROLLED PLATES RESISTANT TO INTERGRANULAR CORROSION - A heat treatment process of high-Mg Er-containing aluminum alloy cold-rolled plates resistant to intergranular corrosion is disclosed, which belongs to the field of non-ferrous metals. The mass percentage of each component of high-Mg Er-containing aluminum alloy heat-rolled plates is, respectively, 5.8%-6.8% of Mg, 0.4%-0.8% of Mn, 0.15%-0.25% of Er, 0.15%-0.25% of Zr, the unavoidable impurities content being less than 4%, the balance being Al. The alloy hot-rolled plates are cold-rolled until the final cold deformation being 75%-90% after the intermediate annealing; the aluminum alloy cold-rolled plates undergo a stabilization annealing at the annealing temperature of 235° C. to 245° C. for 3.5-4 hours, and then is cooled in air to room temperature. This process significantly improves the resistance to intergranular corrosion while it does not reduce the strength of the alloy significantly. | 02-27-2014 |
| 20140069557 | Structural Automotive Part Made From an Al-Zn-Mg-Cu Alloy Product and Method of its Manufacture - A method of manufacturing a formed aluminium alloy body-in-white (“BIW”) part of a motor vehicle, the BIW part having a yield strength of more than 500 MPa after being subjected to a paint-bake cycle. The method includes providing a rolled aluminium sheet product of an AlZnMgCu alloy and having a gauge in a range of 0.5 to 4 mm and subjected to a solution heat treatment (SHT) and quenched following SHT, and wherein the SHT and quenched aluminium sheet product has a substantially recrystallized microstructure, forming the aluminium alloy sheet to obtain a formed BIW part, assembling the formed BIW part with one or more other metal parts to form an assembly forming a motor vehicle component, subjecting the motor vehicle component to a paint bake cycle, wherein the aluminium alloy sheet in the formed BIW part has a yield strength of more than 500 MPa. | 03-13-2014 |
| 20140209222 | 7XXX SERIES ALUMINUM ALLOY MEMBER EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE AND METHOD FOR MANUFACTURING THE SAME - An aluminum alloy member resistant to cracking and having high strengths and excellent stress corrosion cracking resistance is manufactured by expanding a 7xxx aluminum alloy hollow extrusion at a rate of 5% or more. Specifically, a 7xxx aluminum alloy hollow extrusion containing Zn of 3.0-9.5%, Mg of 0.4-2.5%, Cu of 0.05-2.0%, and Ti of 0.005-0.2%, in mass percent, and prepared through press quenching is subjected to a reversion treatment, to pipe expansion within 72 hours after the reversion treatment, and to temper aging. The reversion treatment includes heating at a temperature rise rate of 0.4° C./second or more, holding in a temperature range of 200-550° C. for longer than 0 second, and cooling at a rate of 0.5° C./second or more. The ratio Y (σ | 07-31-2014 |
| 20140230974 | HEAT TREATABLE ALUMINUM ALLOYS HAVING MAGNESIUM AND ZINC AND METHODS FOR PRODUCING THE SAME - New magnesium-zinc aluminum alloy bodies and methods of producing the same are disclosed. The new magnesium-zinc aluminum alloy bodies generally include 3.0-6.0 wt. % magnesium and 2.5-5.0 wt. % zinc, where at least one of the magnesium and the zinc is the predominate alloying element of the aluminum alloy bodies other than aluminum, and wherein (wt. % Mg)/(wt. % Zn) is from 0.6 to 2.40, and may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new magnesium-zinc aluminum alloy bodies may realize improved strength and other properties. | 08-21-2014 |
| 20150291227 | METHOD FOR PRODUCING A MOTOR VEHICLE COMPONENT FROM ALUMINUM - A method for producing a motor vehicle component, is disclosed having the steps of—providing a blank composed of a 5000 grade naturally hard aluminum alloy with an initial yield strength, completely heating the blank to a forming temperature between 150° C. and 350° C., preferably between 200° C. and 300° C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and performing forming in a forming tool in less than 20 s, preferably less than 10 s and in particular between 2 and 5 s, the temperature being held between 150° C. and 350° C. in at least one first region of the blank, and cooling to a temperature lower than 250° C., in particular lower than 200° C., being performed in a second region during or after the deformation | 10-15-2015 |
| 20150299836 | METHOD OF MANUFACTURING FORMED COMPONENT FOR AIRCRAFT USE MADE OF ALUMINUM ALLOY AND FORMED COMPONENT FOR AIRCRAFT USE - A method of manufacturing a formed component for aircraft use according to the present invention includes: subjecting a material made of an aluminum alloy to solution heat treatment; then forming the material into a predetermined shape under cold working conditions; and thereafter subjecting the material to artificial age-hardening treatment. Under the cold working, the material is formed into the predetermined shape while a strain corresponding to a temper T8 is being imparted to the material by a roll forming apparatus. This makes it possible to manufacture a formed component for aircraft use made of an aluminum alloy in a T8 state at a lower cost than conventional art. | 10-22-2015 |
| 20150354043 | METHOD FOR PRODUCING A MOTOR VEHICLE COMPONENT FROM ALUMINUM - A method for producing a motor vehicle component is disclosed having the steps of providing a strain-hardened blank composed of a 5000 grade aluminum alloy, partially heating the blank in a first region to a temperature higher than 350° C., in particular to 400° C., the blank being kept at a temperature between 15° C. and 30° C., preferably at 20° C., in a second region, and the partial heating being performed in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, adjusting the temperature of the blank as a whole to between 150 and 350° C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and deforming the blank to form the motor vehicle component in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and cooling the motor vehicle component. | 12-10-2015 |
| 20160053356 | METHOD FOR PRODUCING A MOTOR VEHICLE COMPONENT FROM A HARDENABLE ALUMINUM ALLOY - A method for producing a motor vehicle component includes the steps of providing a precipitation-hardenable blank composed of a 6000 or 7000 grade aluminum alloy, solution-annealing the blank at a temperature between 350° C. and 550° C. for a time period of 2 to 30 min., in particular 3 to 20 min. and preferably 5 to 15 min., in particular at a temperature between 440° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° C. in the case of a 6000 grade aluminum alloy, subjecting the solution-annealed blank to partially different quenching, a first region being quenched to a temperature between 150° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching. | 02-25-2016 |
| 20160115577 | 2XXX ALUMINUM ALLOYS, AND METHODS FOR PRODUCING THE SAME - New 2xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 2xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 2xxx aluminum alloy bodies may realize improved strength and other properties. | 04-28-2016 |
| 20160122852 | 7XXX ALUMINUM ALLOYS, AND METHODS FOR PRODUCING THE SAME - New 7xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 7xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 7xxx aluminum alloy bodies may realize improved strength and other properties. | 05-05-2016 |
| 20160168676 | AIR QUENCHED HEAT TREATMENT FOR ALUMINUM ALLOYS | 06-16-2016 |
| 20160193643 | Process for Forming Aluminum Alloy Parts with Tailored Mechanical Properties | 07-07-2016 |
| 20160201177 | Selective Grain Boundary Engineering | 07-14-2016 |
| 20190144977 | HARDENABLE ALUMINUM ALLOY | 05-16-2019 |
| 148696000 | Multiple working steps | 3 |
| 20130312881 | METHOD OF PRODUCING A SHAPED AL ALLOY PANEL FOR AEROSPACE APPLICATIONS - A method of producing a shaped aluminium alloy panel, preferably for aerospace or automotive applications, from 5000-series alloy sheet. The method includes: providing a sheet made of 5000-series alloy having a thickness of about 0.05 to 10 mm and a length in the longest dimension of at least 800 mm; and stretch forming the sheet at a forming temperature between −100° C. and −25° C., to obtain a shaped aluminium alloy panel. A shaped article formed by the above method is also provided. | 11-28-2013 |
| 148697000 | With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening | 2 |
| 20120261039 | Method for manufacturing of vehicle armor components requiring severe forming with very high bend angles with very thick gauge product of high strength heat treatable aluminum alloys - It has been commonly believed that very thick gauge high strength aluminum alloy product such as AA2139 plate cannot be formed to the required sharp angles to form the highly protective underbody armor for the MRAP vehicles. The present process and method of manufacture provides a means for strategically combining the metallurgical process of manufacturing high strength aluminum alloys and the forming process of V shaped hull to improve the formability of the very thick gauge high strength alloy product so much that even the very thick gauge (thicker than 1 inch) plate can be formed to severe forming angles. This combined process allowed successful manufacturing of high performance V shaped hulls for the Mine Resistant Ambush Protected (MRAP) vehicles. | 10-18-2012 |
| 20140209223 | 7XXX SERIES ALUMINUM ALLOY MEMBER EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE AND METHOD FOR MANUFACTURING THE SAME - An aluminum alloy member resistant to cracking and having high strengths and excellent stress corrosion cracking resistance is manufactured by crushing a 7xxx aluminum alloy extrudate. Specifically, a 7xxx aluminum alloy extrudate containing Zn of 3.0-8.0%, Mg of 0.4-2.5%, Cu of 0.05-2.0%, and Ti of 0.005-0.2%, in mass percent, and prepared through press quenching is subjected to a reversion treatment, to crushing within 72 hours after the reversion treatment, and then to aging. The reversion treatment includes heating at a temperature use rate of 0.4° C./second or more, holding in a temperature range of 200-550° C. for longer than 0 second, and cooling at a rate of 0.5° C./second or more. The ratio of the tensile residual stress σ | 07-31-2014 |
