在大批使用钢管时,冲床上截断的方法是较经济的。它和切管专机、砂轮切割、车床切割相比,生产效率高,材料利用率高,噪音、振动小,安全。这种方法是采用两组浮动半圆上下切刀3、4和人字形切刀7(见图)。这种装置能用在普通压力机上。工作开始时,管材通过上、下切刀之间圆孔被推向定位板6。压力机滑 In large quantities when using steel pipe, the punching method is more economical. It and cutting plane, wheel cutting, lathe cutting, high production efficiency, high material utilization, noise, vibration, safety. This method uses two sets of floating semicircular upper and lower cutters 3,4 and herringbone cutters 7 (see figure). This device can be used in ordinary presses. At the beginning of work, the pipe is pushed toward the positioning plate 6 through the round hole between the upper and lower cutters. Press slide