一、前言高速钢刀具用物理气相沉积法(PVD)涂上一层呈金黄色的氮化钛(TiN)后,具有红硬性高、抗粘结性强、化学稳定性好、韧性高等优异性能。因此有效地提高刀具耐用度和加工效率,可以切削耐磨合金及纤维塑料等难加工材料,而在减小加工表面粗糙度方面也有明显作用。这项技术对机械加工产生了很重要的变革,引起世界各工业国家 I. Introduction High-speed steel cutting tools with physical vapor deposition (PVD) coated with a layer of titanium nitride (TiN) is golden yellow, with high red hardness, anti-adhesion, chemical stability, high toughness, excellent performance . Therefore, the utility model can effectively improve the tool durability and the processing efficiency, can cut hard-to-process materials such as wear-resistant alloy and fiber plastic, and has obvious effects on reducing the processing surface roughness. This technology has produced a very important change in machining, causing industrial countries in the world