PRODUCTION METHOD OF THIN SHEETS MADE OF ALUMINIUM-COPPER-LITHIUM ALLOY FOR AIRCRAFT FUSELAGE MANUFACTURE

A method for manufacturing a brushed rolled product made from Al-Cu-Li alloy with a thickness of less than 12 mm, including the steps of producing a rolled product, solution heat treatment and quenching, stress relieving, optionally tempering, and brushing, wherein the brushing tool applies a force...

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Bibliographische Detailangaben
Hauptverfasser:	EBERL, Frank, SAFRANY, Jean-Sylvestre, BRET, Thibaud, PEGUET, Lionel, DAVO GUTIERREZ, Maria Belen
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY COMBINED OPERATIONS DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FERROUS OR NON-FERROUS ALLOYS GRINDING MACHINE TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS POLISHING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	A method for manufacturing a brushed rolled product made from Al-Cu-Li alloy with a thickness of less than 12 mm, including the steps of producing a rolled product, solution heat treatment and quenching, stress relieving, optionally tempering, and brushing, wherein the brushing tool applies a force to the rolled product generating residual compressive stresses at the surface of the brushed product; eliminates a thickness of at least 9 μm from the surface of the non-brushed rolled product; wherein the brushing step comprises at least one circular brushing motion. The rolled product obtained by the method according to the invention is advantageous. The use of such a product in an aircraft fuselage panel is advantageous.