FIELD: process engineering.
SUBSTANCE: invention relates to preparation of temper mill working rolls. Proposed method comprises machining roll surface to preset geometry. Note here that to produce automobile body steel sheets with matted surface and mean height of micro irregularities Ra= 0.8-1.4 mcm at the number of their peaks Pc = 55-60 cm-1 , said rolls are subjected to electric charge machining to produce micro geometry of their surface with Ra = 2.2-3.2 mcm and Pc = 55-60 cm-1, then to burnishing to produce Ra = 1.8-2.6 mcm at the same Pc.
EFFECT: possibility to produce high-quality automobile body steel sheets with matted surface.
1 ex
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