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在零部件加工方面孔加工所占的比例依然很高有关高效率、高精度孔加工技术备受大家关注。近期由于孔加工技术和产品的快速发展使涂层硬质合金钻头、铰刀等孔加工刀具的使用量大幅度增加。涂层硬质合金钻头的切削刃形状已得到优化旨在提高其加工性能。例如在钻头的顶角、横刃的修磨、采用直柄(与立铣刀杆同一直径)等方面都进行了完善的考虑。采用铰刀进行孔的精加工、采用螺纹立铣刀进行螺纹孔的加工等方面同样朝着提高加工
Hole processing in parts processing is still a high proportion of high efficiency, high precision hole processing technology has drawn everyone’s attention. Recently, due to the rapid development of hole machining technology and products, the usage of hole machining tools such as carbide cemented carbide drills and reamers has greatly increased. The shape of the cutting edge of coated carbide drills has been optimized to improve their machinability. For example, in the top corner of the drill bit, chisel grinding, the use of straight shank (and the same diameter milling cutter pole) and so on have carried out perfect consideration. The use of reamer hole finishing, the use of thread end mill for the processing of threaded holes, etc. also toward the increase in processing