Abstract: The invention relates to a method of manufacturing an 7xxx-series aluminium alloy plate product having improved fatigue failure resistance, the method comprising the steps of (a) casting an ingot made of an aluminium alloy of the 7xxx-series comprising (in wt. %): Zn 5 to 9, Mg 1 to 3, Cu 0 to 3, balance aluminium and incidental elements and impurities; (b) homogenizing and/or preheating the cast ingot; (c) hot rolling the ingot into a plate product by rolling the ingot with multiple rolling passes, characterized in that when the intermediate thickness of the plate is between 80 and 220 mm, at least a high reduction hot rolling pass is carried out with a thickness reduction of at least 25%, wherein the plate product has a final thickness of less than 75 mm. The invention is also related to an aluminium alloy plate product and an aerospace structural member produced by this method.

Abstract: A method of manufacturing a rolled wear-resistant aluminium alloy product including the steps of: (a) providing a rolling feedstock material of an aluminium alloy having Mg 4.20% to 5.5%, Mn 0.50% to 1.1%, Fe up to 0.40%, Si up to 0.30%, Cu up to 0.20%, Cr up to 0.25%, Zr up to 0.25%, Zn up to 0.30%, Ti up to 0.25%, unavoidable impurities and balance aluminium; (b) heating the rolling feedstock; (c) hot-rolling of the feedstock to an intermediate gauge in a range of 15 mm to 40 mm; (d) hot-rolling of the feedstock from intermediate gauge to a final gauge in a range of 3 mm to 15 mm and wherein the hot-mill exit temperature is in a range of 130-285° C.; (e) cooling of the hot-rolled feedstock to ambient temperature.

Abstract: The invention relates to a method of forming an AlMg alloy armor plate product, and comprising the steps of: (i) providing a plate product having a gauge of at least 10 mm and a chemical composition, in wt. %: Mg 2.5% to 6%, Mn 0 to 1.2%, Sc 0 to 1%, Ag 0 to 0.5%, Zn 0 to 2%, Cu 0 to 2%, Li 0 to 3%, optionally at least one or more elements selected from the group consisting of (Zr 0.03% to 0.4%, Cr 0.03% to 0.4%, and Ti 0.005% to 0.3%), Fe 0 to 0.4%, Si 0 to 0.25%, inevitable impurities and balance aluminum, and (ii) shaping said alloy plate at a temperature in a range of 200° C. to 400° C. to obtain a predetermined two- or three-dimensional formed structure.

Abstract: An aluminum alloy sheet product or extruded product for fluxless brazing, including an aluminum alloy core having on at least one face an aluminum filler clad layer containing 4% to 15% of Si, the filler clad layer having an inner-surface and an outer-surface, the inner-surface is facing the aluminum alloy core and the outer-surface is facing a coating layer of 2 to 45 mg/sq·m of Bi or of a Bi-based alloy. Furthermore, a method of brazing a brazed assembly incorporating at least one member made from the brazing sheet material.

Abstract: An aluminum alloy extruded tube product for a heat exchanger assembly and made from an 1xxx-series aluminum alloys and including furthermore a purposive addition of one or more wetting elements selected from the group of: Bi 0.03% to 0.5%, Pb 0.03% to 0.5%, Sb 0.03% to 0.5%, Li 0.03% to 0.5%, Se 0.03% to 0.5%, Y 0.03% to 0.05%, Th 0.03% to 0.05%, and the sum of these elements being 0.5% or less.

Abstract: The invention relates to a method of forming an AlMg alloy armour plate product, and comprising the steps of: (i) providing a plate product having a gauge of at least 10 mm and a chemical composition, in wt. %: Mg 2.5% to 6%, Mn 0 to 1.2%, Sc 0 to 1%, Ag 0 to 0.5%, Zn 0 to 2%, Cu 0 to 2%, Li 0 to 3%, optionally at least one or more elements selected from the group consisting of (Zr 0.03% to 0.4%, Cr 0.03% to 0.4%, and Ti 0.005% to 0.3%), Fe 0 to 0.4%, Si 0 to 0.25%, inevitable impurities and balance aluminium, and (ii) shaping said alloy plate at a temperature in a range of 200° C. to 400° C. to obtain a predetermined two- or three-dimensional formed structure.

Abstract: An aluminum alloy extruded tube product for a heat exchanger assembly and made from a 3xxx-series aluminum alloys and including furthermore a purposive addition of one or more wetting elements selected from the group of: Bi 0.03% to 0.5%, Pb 0.03% to 0.5%, Sb 0.03% to 0.5%, Li 0.03% to 0.5%, Se 0.03% to 0.5%, Y 0.03% to 0.05%, Th 0.03% to 0.05%, and the sum of these elements being 0.5% or less.

Abstract: An aluminum 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 aluminum.

Abstract: An aluminium alloy sheet product or extruded product for fluxless brazing, including an aluminium alloy core having on at least one face an aluminium filler clad layer containing 4% to 15% of Si, the filler clad layer having an inner-surface and an outer-surface, the inner-surface is facing the aluminium alloy core and the outer-surface is facing a coating layer of 2 to 45 mg/sq.m of Bi or of a Bi-based alloy. Furthermore, a method of brazing a brazed assembly incorporating at least one member made from the brazing sheet material.

Abstract: An aluminium alloy extruded tube product for a heat exchanger assembly and made from a 3xxx-series aluminium alloys and including furthermore a purposive addition of one or more wetting elements selected from the group of: Bi 0.03% to 0.5%, Pb 0.03% to 0.5%, Sb 0.03% to 0.5%, Li 0.03% to 0.5%, Se 0.03% to 0.5%, Y 0.03% to 0.05%, Th 0.03% to 0.05%, and the sum of these elements being 0.5% or less.

Abstract: An aluminium alloy extruded tube product for a heat exchanger assembly and made from an 1xxx-series aluminium alloys and including furthermore a purposive addition of one or more wetting elements selected from the group of: Bi 0.03% to 0.5%, Pb 0.03% to 0.5%, Sb 0.03% to 0.5%, Li 0.03% to 0.5%, Se 0.03% to 0.5%, Y 0.03% to 0.05%, Th 0.03% to 0.05%, and the sum of these elements being 0.5% or less.

Abstract: A brazing sheet material for CAB brazing without applying flux. The brazing sheet material including an aluminum core alloy layer provided with a first brazing clad layer material on one or both sides of the aluminum core layer and at least one second brazing clad layer material positioned between the aluminum core alloy layer and the first braze clad layer material. The second brazing clad layer material is an Al—Si alloy brazing material having 5% to 20% Si and 0.01% to 3% Mg, and the first brazing clad layer material is an Al—Si alloy brazing material having 2% to 14% Si and less than 0.4% Mg. Also disclosed is a brazed assembly manufactured in a brazing operation.

Abstract: 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.

Abstract: 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 T1, and a temperature gradient is applied between temperature T2 and T3, wherein T2>T3, across at least one direction of the plate by controlled heat-input into the plate from one side (width or thickness) of the plate to temperature T2 and controlled cooling to temperature T3 from the plate at the opposite side of the controlled heat-input, and ageing the plate while applying the temperature gradient between T2 and T3.

Abstract: 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.

Abstract: 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.

Abstract: Disclosed is a tube made of a profile rolled metal product, in particular for use in heat exchangers, a rolled metal product and a method of producing the same. The tube includes a first wall and a second wall forming two opposing sides of the tube, and a plurality of reinforcing structures connecting the first and second walls and forming longitudinal passages between them. Each reinforcing structure is formed by a longitudinal ridge on the first wall projecting towards the second wall and a longitudinal ridge on the second wall protecting towards the first wall. The ridges are joined to each other at their sides.

Abstract: A method of producing an aluminium alloy brazing sheet for the manufacturing of light brazed assemblies, wherein said brazing sheet has good formability, combined with a low susceptibility to core penetration in the end annealed as-produced condition after stretching, forming and/or shaping and brazing are disclosed. Assemblies made according to the method are also disclosed.

Abstract: 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 T1, and a temperature gradient is applied between temperature T2 and T3, wherein T2>T3, across at least one direction of the plate by controlled heat-input into the plate from one side (width or thickness) of the plate to temperature T2 and controlled cooling to temperature T3 from the plate at the opposite side of the controlled heat-input, and ageing the plate while applying the temperature gradient between T2 and T3.

Abstract: Disclosed is a high strength aluminium alloy brazing sheet, including an Al—Cu core layer and at least one clad layer, the core layer having the following composition (in weight percent): Cu: 1.2-4.0, Mn: 0.06-1.5, Mg: 0.06-1.5, Si: up to 0.5, Zn: ?0.4, Zr: ?0.25, Fe: ?0.5, Ti: ?0.25, Cr: ?0.25; V?0.25; the balance substantially aluminium and impurities, the clad layer including an Al—Si based filler alloy and being applied on at least one side of the core layer. Also disclosed is a brazed assembly including the brazing sheet and the use of the brazing sheet for a brazing application such as a heat exchanger.