过去,我厂在钻铰定位销孔时,总是先钻后铰,需要装卡工件两次,并更换两次刀具。劳动强度大,生产率也不高。后来我们经过多次改进,成功地采用了钻-铰复合刀具(见附图)。使两道工序合并为一道,并且在刀具制造上采用了无机粘结的先进工艺,为复合刀具的设计与制造提供了一条新途径。经过多年来的实际使用,效果很好。一,刀具特点 In the past, when I was drilling a hinge pin hole, always drilling the hinge first, loading the workpiece twice and replacing the cutter two times. Labor intensity, productivity is not high. Later, after many improvements, we succeeded in using the drill-hinge compound cutter (see attached figure). So that the two processes merge into one, and in the tool manufacturing using inorganic bonding advanced technology for composite tool design and manufacture provides a new way. After years of actual use, the effect is very good. First, the tool features