立方氮化硼（CBN）刀具硬车削开辟了硬质材料加工的新领域。随着新开发的CBN刀具的出现，CBN车削的应用不断涌现。本文介绍了硬车削技术中CBN刀具的20年历史。主题包括CBN车削的优点、刀具磨损和加工表面完整性等。还讨论了CBN精车削的当前研究，它可能取代磨削。

HARD TURNING WITH CUBIC BORON NITRIDE (CBN) TOOLS HAS OPENED A NEW FIELD OF HARD MATERIAL MACHINING. APPLICATIONS OF CBN TURNING HAVE BEEN CONTINUOUSLY EMERGING ACCOMPANIED WITH NEWLY DEVELOPED CBN TOOLS. THIS PAPER PRESENTS THE TWENTY-YEAR HISTORY OF CBN TOOLS IN HARD TURNING TECHNOLOGY. THE SUBJECTS COVER ADVANTAGES OF CBN TURNING, TOOL WEAR, AND MACHINED SURFACE INTEGRITY, ETC. CURRENT RESEARCH ON CBN FINISH TURNING, WHICH POTENTIALLY REPLACES GRINDING IS ALSO DISCUSSED.