一、前言陶瓷刀具的出现和发展,将切削加工的能力和水平提高到了一个新的高度。最近十几年来,在刀具性能、产品种类和使用领域的开拓方面都有相当的进展。前面所介绍的几类陶瓷刀具材料国外已商品化,并成功地用于切削加工。国内亦有Al_2O_3、Al_2O_3+ZrO_2、Al_2O_3+TiC、si_3N_4、Si_3N_4+TiC、Sialon等各种牌号的陶瓷刀具产品。各项物理机械性能指标、切削性能大抵相当于国外目前陶瓷刀具性能水平。正如以往人们选用不同牌号的硬质合金切削不同 First, the foreword The emergence and development of ceramic cutting tools, cutting the ability and level of processing to a new height. In the recent ten years, there has been considerable progress in the field of tool performance, product variety and use. Several types of ceramic tool materials introduced earlier have been commercialized abroad and successfully used in cutting. Domestic also Al_2O_3, Al_2O_3 + ZrO_2, Al_2O_3 + TiC, Si_3N_4, Si_3N_4 + TiC, Sialon and other brands of ceramic cutting tools. The physical and mechanical properties, cutting performance is roughly equivalent to the current level of foreign ceramic tool performance. As in the past people choose different grades of cemented carbide cutting different