Method for the manufacturing of elements of non-ferrous metal alloys, advantageously aluminium alloys

Abstract

A method is disclosed for the manufacturing of elements of non-ferrous metal alloys, advantageously aluminium alloys, used for the manufacturing of shaped elements, in particular rods, in thermal treatment of metals. The charge will be subjected to plastic working of at least 60% deformation, advantageously by pressing with the degree of processing exceeding the value of 2, at a temperature below the range of occurrence of a solid solution, after which the obtained element undergoes the supersaturation process by heating it up to the temperature of occurrence of a solid solution and keeping it at this temperature for a period of 2-25 minutes, advantageously 5 minutes, and then rapidly cooled, advantageously using water, to the ambient temperature, after which it is subjected to the ageing process.

1 . A method of manufacturing non-ferrous metal alloy elements, with the use of plastic working and thermal treatment, advantageously aluminium alloys, wherein the charge will be subjected to plastic working of at least 60% deformation, advantageously by pressing with the extrusion ratio exceeding the value of 2, at a temperature below the range of occurrence of a solid solution, after which the obtained element undergoes the supersaturation process by heating it up to the temperature of occurrence of a solid solution and keeping it at this temperature for a period of 2-25 minutes, advantageously 5 minutes, and then rapidly cooled, advantageously using water, to the ambient temperature, after which it is subjected to the ageing process. 
     
     
         2 . A method in accordance with  claim 1 , wherein plastic working is conducted by pressing with oscillating rotations of the die along its axis with an angle in the range of ±(4-25)° and a frequency in the range of 1-15 Hz. 
     
     
         3 . A method in accordance with  claim 1 , wherein plastic working is conducted by rolling, with an over the axis movement of at least one of the working rollers or an additional working tool, restricting the roll gap, whereas the movement range may not be higher than 10 mm, and the frequency may not be lower than 2 Hz.