The invention relates to a novel method for rolling high-strength hard aluminum
alloy. The method is characterized in that a strong
magnetic field is applied when aluminum
alloy is rolled, resistance to deformation of material can be reduced through the strong
magnetic field, and the performance of deformation of material can be raised. Ultrathin and high-performance aluminum
alloy can be produced through controlling intensity of magnetic induction of the strong
magnetic field, the action time of the strong magnetic field, the rolling temperature, the
rolling speed and proper reduction. The method is advantageous in that
single pass reduction can be distinctly increased, the rolling efficiency of the high-strength hard aluminum alloy can be raised, the
power consumption of a
rolling mill is reduced, and the cost is saved. In addition, compared with a common rolling method, resistance to deformation of material is reduced, the grains are refined, the texture is uniformed, a part of the
residual stress can be eliminated, defects caused by rolling can be reduced, and the yield during a rolling process can be raised by adopting the method to roll, so a thinner and better product can be achieved.