FIELD: technological processes.
SUBSTANCE: invention relates to a method of cutting a workpiece or intermediate strip (1) by means of shears (2). Method includes steps of: a) feeding part of fully hardened workpiece or intermediate strip (1) in feed direction (F) or intermediate strip (1) in front of shears (2), b) location of first blade (3) of shears (2) on one surface (4) of workpiece or intermediate strip (1) and location of second blade (5) of shears (2) on other surface (6) of workpiece or intermediate strip (1) and performing cutting by performing relative movement of both knives (3, 5) of shears, wherein at least one of shears (3) is in the extended position, c) crimping or squeezing the wedge-shaped contour at the end of the workpiece or intermediate strip (1) located in the feed direction F before shears (2), by pressing to both surfaces (4, 6) a blank or intermediate strip (1) of a crimping tool or a crimping and stamping die (7, 5), so that thickness (d) of the beginning of the workpiece or intermediate strip (1) compared to thickness (D) of workpiece or intermediate strip (1) is reduced, note here that part of crimping die or crimping and stamping die (5) is formed by one of shears blades.
EFFECT: result is improvement of rolling of section with large reduction in thickness.
13 cl, 6 dwg
