METHOD FOR MANUFACTURING THIN-WALL PARTS FROM ALUMINIUM WROUGHT ALLOYS Russian patent published in 2010 - IPC C22F1/04 B21J5/00 

FIELD: metallurgy.

SUBSTANCE: there is proposed manufacturing method of thin-wall parts from aluminium wrought alloys, which involves manufacture of workpieces by forming, which is close as to the shape and dimensions to dimensions of finishing part with minimum allowances for mechanical processing, preliminary machining by removing the metal from outer cold-worked layers and in the places which are concentrators of maximum inner stresses, and stabilising heat treatment. Then cyclic treatment is performed, which involves machining operations so that the installation and fixing of the processed part is provided on the equipment without changing its curvature, which are performed in turn with the operations of stabilising heat treatment; after that, final machining is performed with further natural ageing of the finished part in the forced state.

EFFECT: minimising deformation of thin-wall parts from aluminium wrought alloys, which appears at their manufacture by machining with metal removal.

3 cl, 2 dwg, 1 tbl