FIELD: manufacturing technology.
SUBSTANCE: invention relates to production of metal sheet. First surface is stamping, at that, on first surface and second surface of metal sheet there formed is recess and projection, where first surface and second surface are perpendicular to direction of thickness of metal sheet. Performing the first scraping on the first surface of the metal sheet perpendicular to the direction of thickness of the metal sheet on the first section of the metal sheet by moving the cutting edge in the direction along the first surface. First scraping is performed by moving the cutting edge in the direction along the first surface of the metal sheet so that the first surface has the same plane with the bottom of the recess. In the metal sheet, the thickness of the first portion is reduced by the first scraping to a value less than the thickness of the second portion.
EFFECT: reduced thickness of metal sheet.
3 cl, 24 dwg
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