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为提高加工金属用刀片的耐用度,目前采用各种方法。例如,刀片用高强度钢制造,或者进行特种热处理;在刀片表面上涂覆耐磨涂层。最简单和廉价的方法是后一种。它基于采用氮化钛薄膜涂层。但是,氮化钛涂层有显著缺点,即在涂覆时炉底板(被涂工具的表面)的温度将超过回火温度,并使涂前淬火的刀片丧失硬度。类金刚石膜涂层则无此缺点。该涂层是在真空中,用阴极溅射石墨法涂覆的。此时炉底板的温度不超过180℃,且不产生淬火表面的回火,而耐用度如立铣刀可提高1～2倍。
In order to improve the durability of metal blades, various methods are currently used. For example, the blade is made of high-strength steel, or a special heat treatment is performed; the surface of the blade is coated with a wear-resistant coating. The easiest and cheaper method is the latter. It is based on the use of titanium nitride film coating. However, the titanium nitride coating has the significant disadvantage that the temperature of the furnace floor (coated tool surface) during application will exceed the tempering temperature and cause the hardness of the prehardened blade to be compromised. Diamond-like coating does not have this disadvantage. The coating was applied in a vacuum with a cathode sputtering graphite method. At this point the temperature of the furnace floor does not exceed 180 ℃, and does not produce tempering the quenched surface, and durability such as end mills can increase 1 to 2 times.