FIELD: technological processes.
SUBSTANCE: method includes notching of their barrel surfaces with a steel shot of specified fraction. Required microgeometry of sheet surface is provided due to the fact that rollers with barrel hardness of T=90…91 HS units and average height of microburrs of their surface of Ra=2.2…2.5 mcm is blown in shot-blasting machine with speed of shot supply V=25…26 m/s, and rollers with T=87…89 HS units and same Ra - with speed of V=21…23 m/s, at the same time angular speed of roller rotation in both cases is equal to 30…40 degree/s, and speed of their axial displacement makes 10 mm/s, and shot fraction is also identical - 0.5…0.8 mm.
EFFECT: production of cold-rolled automobile body sheet steel with high-quality surface.
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