Improving the mechanical and operational characteristics of aluminum alloys by multi-contact deformation treatment

Experimental studies of the possibility of improving the mechanical and operational characteristics of aluminium alloys by surface plastic deformation (SPD) have been carried out. As a processing method, wave strain hardening (WSH) was chosen. The adaptation of the existing equipment for hardening aluminium alloys was carried out and the limiting technological modes of processing were established. As a result of experimental studies of hardened samples, it was found possible to provide a hardened layer depth of 10 mm with a maximum degree of hardening 2.12 times higher than the original, as well as the possibility of increasing the operational characteristic - resistance fatigue - up to 3 times is established.