ASYMMETRIC ROLLING APPARATUS, ASYMMETRIC ROLLING METHOD AND ROLLED MATERIALS FABRICATED BY USING THE SAME

摘要

According to an aspect of the present invention, there is provided an asymmetric rolling method for rolling a rolling material by using at least one pair of working rolls comprising rolling rolls rotating at the same linear velocity and having different diameters. According to another aspect of the present invention, there is provided an asymmetric rolling apparatus comprising a first roll contacting a first surface of a rolling material; a second roll having a diameter different from that of the first roll, and contacting a second surface of the rolling material opposite to the first surface; and a power providing unit for providing power to each of the first and second rolls so as to adjust a ratio between angular velocities of the first and second rolls.