Aleris ALuminum Koblenz GMBH Patent applications |
Patent application number | Title | Published |
20150284831 | Al-Mg ALLOY PRODUCT SUITABLE FOR ARMOUR PLATE APPLICATIONS - Aluminum alloy plate having improved resistance against incoming kinetic energy projectiles, the plate having a gauge of 10 mm or more and the aluminum alloy having a chemical composition including, in weight percent: Mg 4.0 to 6.0, Mn 0.2 to 1.4, Zn 0.9 max., Zr<0.3, Cr<0.3, Sc≦0.5, Ti≦0.3, Fe<0.5, Si<0.45, Ag<0.4, Cu<0.25, other elements and unavoidable impurities each <0.05, total <0.20, balance aluminum, and wherein the alloy plate is obtained by a manufacturing process including casting, preheating and/or homogenisation, hot rolling, a first cold working operation, an annealing treatment at a temperature of less than 350° C., followed by a second cold working operation. | 10-08-2015 |
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 |
20130146186 | HIGH STRENGTH WELDABLE AL-MG ALLOY - An aluminium alloy product having high strength, excellent corrosion resistance and weldability, having the following composition in wt.%: Mg 3.5 to 6.0, Mn 0.4 to 1.2, Fe<0.5, Si<0.5, Cu<0.15, Zr<0.5, Cr<0.3, Ti 0.03 to 0.2, Sc<0.5, Zn<1.7, Li<0.5, Ag<0.4, optionally one or more of the following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each<0.5 wt. %, and impurities or incidental elements each<0.05, total<0.15, and the balance being aluminium. | 06-13-2013 |
20120090742 | 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 (a) 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, (b) forming the aluminium alloy sheet to obtain a formed BIW part, (c) assembling the formed BIW part with one or more other metal parts to form an assembly forming a motor vehicle component, (d) 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. | 04-19-2012 |
20110259479 | High Strength Weldable AL-MG Alloy - An aluminium alloy product having high strength, excellent corrosion resistance and weldability, having the following composition in wt. %: Mg 3.5 to 6.0, Mn 0.4 to 1.2, Fe<0.5, Si<0.5, Cu<0.15, Zr<0.5, Cr<0.3, Ti 0.03 to 0.2, Sc<0.5, Zn<1.7, Li<0.5, Ag<0.4, optionally one or more of the following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each<0.5 wt. %, and impurities or incidental elements each<0.05, total<0.15, and the balance being aluminium. | 10-27-2011 |
20110204124 | PROCESS FOR FLUXLESS BRAZING OF ALUMINIUM AND BRAZING FILLER ALLOY FOR USE THEREIN - This relates to a process for controlled atmosphere brazing including, brazing an aluminium alloy without flux in a controlled atmosphere, while using brazing sheet including an aluminium alloy core upon which on at least one side a layer of filler alloy is clad, the filler clad layer having an inner-surface and an outer-surface, the inner-surface is facing the core, and wherein the filler alloy has a composition which is Na-free, Li-free, K-free, and Ca-free, and including, in wt. %: Si 3% to 15%, Cu 0.3% to 5%, Mg 0.05% to 1%, one or more elements selected from the group of: Bi, Pb, and Sb, and the sum of these elements being 0.35% or less, Fe 0 to 0.6%, Mn 0 to 1.5%, the balance aluminium. | 08-25-2011 |
20110198392 | Process for Fluxless Brazing of Aluminium and Brazing Sheet for Use Therein - This relates to a process for controlled atmosphere brazing including, brazing an aluminium alloy without flux in a controlled atmosphere, while using brazing sheet including an aluminium alloy core upon which on at least one side a layer of filler alloy is clad. The filler clad layer has an inner-surface and an outer-surface, the inner-surface is facing the core and the outer-surface is devoid of any further metallic based layers. The filler alloy has a composition which is Na-free, Li-free, K-free, and Ca-free, and includes, in wt. %: Si 3% to 15%, Mg 0.05% to 0.5%, one or more elements selected from the group of: (Bi 0.03% to 0.2%, Pb 0.03% to 0.2%, Sb 0.03% to 0.2%, and the sum of these elements being 0.2% or less), Fe 0 to 0.6%, Mn 0 to 1.5%, the balance aluminium and incidental impurities. | 08-18-2011 |
20110146937 | METHOD FOR CASTING A COMPOSITE INGOT - Method and apparatus employing a casting mould including a liquid feed end for supplying the casting mould with molten second alloy and an exit end with an outlet for casting molten second alloy downwardly. While continuously moving the mould and an elongated solid first alloy substrate relative to one another casting molten second alloy passes downwardly through at least one outlet of the mould onto an upper surface of the substrate at a temperature wherein the substrate locally at least partly remelts beginning at a reference point of a remelting zone and mixes at least partly with molten second alloy to form an alloy pool. After remelting the molten alloy pool continuously cools and solidifies at a location away from the reference point and joins the substrate to form composite ingot including at least two separately formed layers of one or more alloys before discharging from the mould. | 06-23-2011 |
20110111081 | AL-ZN-MG ALLOY PRODUCT WITH REDUCED QUENCH SENSITIVITY - This relates to an aluminum alloy product, in particular an age-hardenable Al—Zn—Mg type alloy product for structural members, the alloy product combining a high strength with high toughness and reduced quench sensitivity, and having a chemical composition including, in wt. %: Zn about 3 to 11%, Mg about 1 to 3%, Cu about 0.9 to 3%, Ge about 0.03 to 0.4%, Si max. 0.5%, Fe max. 0.5%, balance aluminum and normal and/or inevitable elements and impurities. Furthermore, this relates to a method of producing such aluminum alloy products. | 05-12-2011 |
20100319817 | AL-MG-ZN WROUGHT ALLOY PRODUCT AND METHOD OF ITS MANUFACTURE - An aluminum alloy wrought product including, in wt. %, Mg 3.0 to 7.0, Zn 0.6 to 2.8, Mn 0 to 1.0, Cu 0 to 2.0, Sc 0 to 0.6, at least one element selected from the group of Zr 0.04 to 0.4, Cr 0.04 to 0.4, Hf 0.04 to 0.4 and Ti 0.01 to 0.3; Fe maximum 0.3, Si maximum 0.3, inevitable impurities, and balance aluminum. The range for the Zn-content in wt. % is a function of the Mg-content according to: lower-limit of the Zn-range: [Zn]=0.34[Mg]−0.4, and upper-limit of the Zn-range: [Zn]=0.34[Mg]+0.4. | 12-23-2010 |
20100151273 | ALUMINIUM ALLOY BRAZING SHEET PRODUCT - The invention relates to an aluminum alloy brazing sheet including: a thin covering material layer, a core material layer, and an Al—Si alloy brazing material layer as an intermediate material interposed between the thin covering material and the core material. The thin covering material and the core material being of aluminum alloys having a solidus temperature higher than a liquidus temperature of the brazing material so that the molten brazing material seeps onto a surface of the thin covering material when the brazing material is molten in a brazing operation. The Al—Si alloy brazing material contains from 0.01 to 0.09% mg, and the aluminum alloy brazing sheet has a total Mg-content of less than 0.06%. | 06-17-2010 |
20100089502 | Al-Cu ALLOY PRODUCT SUITABLE FOR AEROSPACE APPLICATION - The invention relates to an age-hardenable aluminium alloy product for structural members having a chemical composition including, in wt. %: Cu about 3.6 to 6.0%, Mg about 0.15 to 1.2%, Ge about 0.15 to 1.1%, Si about 0.1 to 0.8%, Fe<0.25%, balance aluminium and normal and/or inevitable elements and impurities. Zn, Ag and/or Ni may or may not be present. A typical range for Zn is <0.3 or, in a further embodiment about 0.3 to 1.3%. A typical range for Ag is <0.1 or, in a further embodiment about 0.1 to 1.0%. Products made from this aluminium alloy product are very suitable for aerospace applications. The alloy can be processed to various product forms, e.g. sheet, thin plate, thick plate, extruded or forged products. Products made from this alloy can be used also as a cast product, ideally as die-cast product. | 04-15-2010 |
20090320969 | HIGH STENGTH Al-Zn ALLOY AND METHOD FOR PRODUCING SUCH AN ALLOY PRODUCT - The present invention relates to a high strength Al—Zn alloy product with an improved combination of corrosion resistance and toughness, the alloy including essentially (in weight percent): Zn: 6.0-9.5, Cu: 1.3-2.4, Mg: 1.5-2.6, Mn and Zr<0.25 but preferably in a range between 0.05 and 0.15 for higher Zn contents, other elements each less than 0.05 and less than 0.25 in total, balance aluminium, wherein (in weight percent): 0.1[Cu]+1.3<[Mg]<0.2[Cu]+2.15. The invention also relates to a method to produce these alloy products, and to some preferred applications thereof such as upper wing applications in aerospace. | 12-31-2009 |
20090269608 | Al-Zn-Mg-Cu ALLOY WITH IMPROVED DAMAGE TOLERANCE-STRENGTH COMBINATION PROPERTIES - An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9Mg−0.6)≦Cu≦(0.9Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy. | 10-29-2009 |
20090090437 | METHOD FOR MANUFACTURING A WROUGHT METAL PLATE PRODUCT HAVING A GRADIENT IN ENGINEERING PROPERTIES - Manufacturing heat-treatable wrought metal plate having length, width and thickness directions and an engineering properties gradient along at least one plate dimension. Rolled, extruded or forged wrought metal plate is solution heat treated and rapidly cooled. The cooled plate is aged by heat treatment for time to arrive at different tempers across at least one plate dimension (length or width). Controlled heat-input into the plate along its length direction raises plate temperature above ambient temperature to temperature T | 04-09-2009 |
20080257870 | PROCESS FOR JOINING - A process for joining a first metal component to a second metal component at a joining region including the steps of: projecting a laser beam onto one or the components for providing a melt pool on the joining region; providing a metal filler wire into the melt pool while substantially simultaneously providing a substantially laminar flow of a substantially inert process shielding gas to the location of the melt pool wherein the process shielding gas flows substantially coaxially around the filler wire; and solidifying the melt pool thereby forming a joint at the joining. | 10-23-2008 |
20080210349 | AA2000-SERIES ALUMINUM ALLOY PRODUCTS AND A METHOD OF MANUFACTURING THEREOF - An AA2000-series alloy including 2 to 5.5% Cu, 0.5 to 2% Mg, at most 1% Mn, Fe <0.25%, Si >0.10 to 0.35%, and a method of manufacturing these aluminum alloy products. More particularly, disclosed are aluminum wrought products in relatively thick gauges, i.e. about 30 to 300 mm thick. While typically practiced on rolled plate product forms, this method may also find use with manufacturing extrusions or forged product shapes. Representative structural component parts made from the alloy product include integral spar members, and the like, which are machined from thick wrought sections, including rolled plate. | 09-04-2008 |