Aluminum-based composite material thin plate or coiled material and preparation method thereof

The invention belongs to the technical field of aluminum-based composite material forming processing, and particularly relates to an aluminum-based composite material thin plate or coiled material and a preparation method thereof. The aluminum-based composite material thin plate or coiled material is prepared by adding a reinforcing phase into an aluminum alloy matrix and carrying out deformation processing, and the addition amount of the reinforcing phase accounts for 5-50% of the volume fraction of the aluminum-based composite material thin plate or coiled material. According to the preparation method, the machining processes such as extrusion cogging, low-temperature controlled rolling and high-speed cold rolling are adopted, and heat treatment means such as intermediate annealing and online solid solution are combined, so that coordinated deformation regulation and control of a reinforcing phase and a matrix and effective control of a deformation structure and a precipitated phase are achieved, and the de