A method for the manufacturing of metallic matrix composites

Abstract

A method for the manufacturing of metallic matrix composites through plastic working is disclosed. In the method, the plastic working charge is in the form of wires, tape or tapes or foil, which is the first component being covered with the second component or components with granulation less than 100 μm, after which they are connected by reciprocal surface contact, forming weaved bundles, and then the connected elements which form the charge material advantageously undergo initial rolling or drawing and in all cases the principal process, which is extrusion performed on a rolling mill with circumferential grooves, where between rollers a closing matrix is placed, rotating in reverse to its axis by an angle of ±20° advantageously ±12°, with a frequency up to 50 Hz, advantageously 15 Hz.

1 . A method for the manufacturing of metallic matrix composites through plastic working, advantageously in a continuous extrusion process with oscillatory twisting, characterized in that the plastic working charge in the form of wires, tape or tapes or foil, which is the first component being covered with the second component or components with granulation less than 100 μm, after which they are connected by reciprocal surface contact, forming weaved bundles, and then the connected elements which form the charge material advantageously undergo initial rolling or drawing and in all cases the principal process, which is pressing performed on a rolling mill with circumferential grooves, where between rollers a closing matrix is placed, rotating in reverse to its axis by an angle of ±20° advantageously ±12°, with a frequency up to 50 Hz, advantageously 15 Hz. 
     
     
         2 . A method in accordance with  claim 1  characterized in that the wires covered by the second component are placed in a bundle and twisted together with a twist of (0.8-0.2), advantageously 0.5 rotation per 100 mm of length. 
     
     
         3 . A method in accordance with  claim 1 , characterized in that the metal tape or foil covered by the second component is twisted in spiral coils, and multiple coils are placed in a bundle and twisted together. 
     
     
         4 . A method in accordance with  claim 1 , characterized in that the charge undergoing the main process of pressing is introduced into the grooves between the rolling mill's rolls with the shorter axis of its perpendicular cross-section parallel to the roll axis. 
     
     
         5 . A method in accordance with  claim 1 , characterized in that the first component is a metal tape or tapes. 
     
     
         6 . A method in accordance with  claim 1 , characterized in that the first component is a metal foil or foils. 
     
     
         7 . A method in accordance with  claim 1 , characterized in that the first component is joined wires and foil. 
     
     
         8 . A method in accordance with  claim 1 , characterized in that the first component is joined wires and metal tapes. 
     
     
         9 . A method in accordance with  claim 1 , characterized in that the first component is joined foil and metal tapes. 
     
     
         10 . A method in accordance with  claim 1 , characterized in that the metal foil covered by the second component is twisted in spiral coils, and multiple coils are placed in a bundle and twisted together.