FIELD: technological processes.
SUBSTANCE: invention relates to metal forming and can be used for fabrication of strip. Strip cold rolling in rolls is performed at mismatch of their circumferential speeds with single degree of deformation of not less than 50 %, wherein rolling is performed to total degree of deformation of 75–95 %.
EFFECT: simultaneous increase of strength and plastic properties by 5–10 % with obtaining gradient structure of metal is provided due to that rolling is carried out in rolls of different diameter, and roughness of the first roll Ra is 10–12 mcm, and Ra of second roll ½–2½ mcm, wherein peripheral speed of rolls is specified by mathematical relationship.
1 cl, 1 dwg, 1 tbl
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