5 ）硬切削加工技术 硬切削（Hard turning） 是指使用 CBN 实体刀具、CBN 刀头或陶瓷刀具 来加工硬度超过 56HRC，或者强度 Rm＞2000 N/mm2 材料的工件。
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高速切削、干切削、硬切削等新的切削工艺正在改变一些行业的传统加工工艺，显现出强大的生命力。
High speed cutting, dry machining, hard machining and other new cutting technology is changing the traditional processing technology in some industries, show a strong vitality.
本文首先阐述了硬脆材料的特性，进而建立了其切削模型。
Cutting model of hard and brittle materials is established after their properties are analysed.
切削加工成形后可以进行渗碳处理，用来制造表面硬、中心韧性高的仪器仪表零件及轴类耐磨件。
Cutting processing after forming can be carburizing processing, used to make the surface hard, center of high toughness instrumentation parts and axis wear parts.
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