最近我们试验成功一种三切刃分屑钻头,并于9月6日进行了表演,获得许多观众的赞扬。钻头的几何形状如图所示。特点是: 1)将钻头的不起切削作用而起挤压作用的横刃磨成切削刃后,使走刀抗力(轴向力)降低,因而可大大提高走刀量。 2)钻头磨出分屑槽后,切屑由螺旋卷曲形状变为多条状,因而易于自动排出减少了钻深孔时的倒切屑的时间,使生产效率大大提高。同时由于克 Recently, we successfully tested a tri-chip chip-cutting drill and performed on September 6, winning the praise of many viewers. Drill geometry as shown. The features are: 1) The drill can not afford cutting role from the crushing of the horizontal edge ground into the cutting edge, the knife resistance (axial force) decreased, which can greatly improve the amount of walking. 2) When the drill bit is scraped out of the chip flute, the chips become multi-shaped by the spiral curl shape, so that it is easy to automatically discharge the time for cutting down chips when drilling deep holes, thereby greatly improving the production efficiency. At the same time due to grams