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提高加工效率、完善装备功能、采用先进的工艺方案是汽车制造的进步之路。在内燃机领域不断倡导的“绿色、环保、小型化、高效化”的背景下,发动机零部件的使用寿命和性能一直谋求表现更为优异的表面处理技术。涂层刀具已成为现代切削刀具的标志,在刀具中的使用比例已超过50%。涂层材料须具有硬度高、耐磨性好、化学性能稳定、不与工件材料发生化学反应、耐热耐氧化、摩擦因数低,以及与基体附着牢固等要求。显然,单一的涂层
Improve processing efficiency, improve equipment functions, the use of advanced technology program is the road to progress in automobile manufacturing. In the background of “green, environmental protection, miniaturization and high efficiency” advocated by the internal combustion engine industry, the service life and performance of engine parts have been seeking more outstanding surface treatment technologies. Coated tools have become the hallmark of modern cutting tools and have used more than 50% of the tools. Coating materials must have high hardness, good wear resistance, chemical stability, chemical reaction with the workpiece material, heat and oxidation resistance, low friction coefficient, and the substrate attached firmly and other requirements. Obviously, a single coating