Abstract: The invention relates to a method for manufacturing a wrought product. The invention further provides, a wrought product able to be obtained according to the method of the invention as well as the use of said wrought product to produce aircraft structural elements.

Abstract: The invention relates to a manufacturing method for making an unwrought semi-finished product having at mid thickness a density of micropores of size greater than 90 ?m less than 50% and preferably less than 20% of the density of micropores of size greater than 90 ?m obtained by a method according to prior art. The method according to the invention comprises in particular an ultrasound treatment step for the molten metal bath in a furnace and/or a vessel using an immersed device comprising at least one ultrasound transmitter. The semi-finished products obtained according to the method of the invention are particularly advantageous for manufacturing by rolling sheets designed for the aircraft industry to produce spars, ribs, upper and lower wing skins and for manufacturing by extrusion sections designed for the aircraft industry to produce stiffeners.

Abstract: A method for producing an aluminum alloy foam wherein an aluminum alloy, in molten form, infiltrates the interstices of a preform of silicon elastomer elements, by means of a conventional molding process, typically a low-pressure process, followed by the elimination of the preform broken down into silica powder during the molding cycle and/or an additional baking cycle.

Abstract: Fiber metal laminate (4) and an aircraft wing (1) having a longitudinal direction, comprising metal layers (5) and fiber reinforced plastic layers (6, 7, 6?, 7?; 6?, 7?) in between said metal layers (5), wherein the metal layers (5) and the fiber reinforced plastic layers (6, 7, 6?, 7?; 6?, 7?) are bonded together, and wherein the fibers of at least some of the fiber reinforced plastic layers (6, 7, 6?, 7?; 6?, 7?) are arranged in a first group in a first plastic layer (6) and in a second group in a second plastic layer (7) whereby the fibers of the first group are at an angle with respect to the fibers of the second group, wherein said laminate (4) exhibits fibers of a first type and fibers of a second type, wherein the fibers of the first type being arranged in the said longitudinal direction of the laminate (4) in one or more of its fiber reinforced plastic layers (6?, 7?; 6?, 7?), and that it has adjacent fiber reinforced plastic layers (6, 7) at or near a symmetry-plane of the laminate (4) that are provi

Abstract: The subject matter of the invention is a device for the direct cooling of a mould for the vertical semicontinuous casting of rolling ingots or extrusion billets (3) with gradual quenching by double jet (4 and 5), the first at substantially 32° and second at substantially 22°, simultaneously and delivering substantially the same flow rates and speeds from a single liquid chamber (2). Another subject of the invention is a method using said device, with or without graphite insert (1) on the working faces and in association with various bottom block configurations.

Abstract: The invention concerns a method for forming by welding along a flat surface an article. The method according to the invention is particularly useful to improve strength and elongation of welded joints obtained by linear friction welding. Structural articles of aircrafts obtained with the method of the invention are advantageous, in particular aircraft structural members.

Abstract: A welded assembly of aluminum alloy part, in which (i) at least a first aluminum alloy part is procured in a solution heat treated, quenched, optionally cold worked, and naturally aged at ambient temperature or pre-aged temper, and at least a second aluminum alloy part, (ii) said parts are welded to obtain a welded assembly having a welded zone, (iii) cold working the entire welded zone between 0.3% and 5% is performed, (iv) the welded assembly thus cold worked undergoes post-weld aging to obtain a final metallurgical temper.

Abstract: The invention relates to an extrados structural element made from an aluminum, copper and lithium alloy and a method for manufacturing same. In the method according to the invention, an alloy with composition (in wt %) 4.2 to 5.2 Cu, 0.9 to 1.2 Li, 0.1 to 0.3 Ag, 0.1 to 0.25 Mg, 0.08 to 0.18 Zr, 0.01 to 0.15 Ti, optionally up to 0.2 Zn, optionally up to 0.6 Mn, an Fe and Si content level less than or equal to 0.1% each, and other element with a content level less than or equal to 0.05% each and 0.15% in total, the aluminum is poured, homogenized, deformed hot and optionally cold, placed in a solution at a temperature of at least 515° C., pulled from 0.5 to 5% and annealed. The combination in particular of the magnesium, copper and manganese content with the temperature in solution can reach a very advantageous elasticity under compression limit.

Abstract: The invention relates to a method for manufacturing a thin sheet having a thickness of 0.5 to 3.3 mm and an essentially non-recrystallized structure made of aluminum-based alloy.