LDP—J—CFⅡ型立方氮化硼刀具为我所经十余年研制、开发出的具有独特性能的新型刀具材料,其硬度高达HV7000～8000(国内检测),Hk4500(日本东芝检测),且具有优良的韧性,因而使用范围也有所扩展。下面报导的加工硬质合金零件即为一例。硬质合金零件的车削过去被认为是很难实现的,现摘刊此经验,可供存在此类问题的厂家借鉴。 LDP-J-CF Ⅱ type cubic boron nitride tool for more than ten years I developed, has developed a unique performance of the new tool material, the hardness up to HV7000 ~ 8000 (domestic testing), Hk4500 (Japan Toshiba testing), and Has excellent toughness, so the use of the range has also been expanded. The following report of the processing of carbide parts is an example. Carbide parts turning the past is considered difficult to achieve, now extract this experience can be used for reference to the existence of such problems manufacturers.