FIELD: oil and gas industry.
SUBSTANCE: method involves creation in a workpiece sheet of external grooves and holes for fastening elements and bending of the received workpiece. Formation of a workpiece sheet and creation of grooves and holes in it are carried out by cutting a sheet metal material with hydroabrasive jet under pressure of fed water of 3800-3900 bar, pressure of compressed air for feeding abrasive of 4.5-5.0 bar, at the distance from a nozzle of a hydroabrasive plant to a cutting sheet material of 3-5 mm and with the consumption of abrasive material of 350-400 g/min. Garnet sand with grain size of 0.16-0.2 mm is used as abrasive material for jet formation.
EFFECT: required level of surface roughness of sliding sheet is provided.
6 cl, 3 dwg, 1 ex
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