METHOD AND DEVICE FOR CUTTING SHAPE STEEL

PROBLEM TO BE SOLVED: To provide a method and a device for cutting a shape steel, wherein sufficient hole form inner clearance is provided even for a hot rolled shape steel, clearance with a fixed cutter receiving a cutting reaction force before cutting is automatically reduced to zero or to be extremely small, and good cutting is performed within a short time. SOLUTION: In the case of shearing a shape steel 100 by a fixed cutter 21 having a hole form 22 corresponding to the sectional shape of the shape steel 100 and a moving cutter 36 having a hole form 35, the shape steel 100 is pushed by the slider of a pressing device 1 at each cycle of cutting, the flange faces 101a and 101b of the shape steel 100 are pressed to the vertical side faces 22a and 22b of the hole form 22 of the fixed cutter 21 and, after the web surface of the shape steel 100 is held between upper and lower cutters 23 and 24, the moving cutter 36 is pressed obliquely downward to perform cutting.