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在西方,主要是美国,普遍使用物理汽化电积(physical vapor deposition,简称PVD)氮化钛涂层刀具,仅仅是最近两年的事。涂上氮化钛的刀具,表面上不仅具有金色的光彩,而且寿命显著增长,切削速度可比同样未涂层刀具的要高。在某些场合下,刀具寿命延长八倍之多,同时切削速度可加大50%,还能提高加工的表面质量。涂层厚度一般在1～6μm之间,维氏硬度可达3000以上,而且耐磨蚀,摩擦小。涂层在重新磨锐中可磨掉30%或更多一些,由于倾角面与切削棱边上的
In the West, mainly the United States, the widespread use of physical vapor deposition (PVD) titanium nitride coated tools is only the last two years. Titanium nitride coated tools, the surface not only has a golden luster, but also significantly increased life expectancy, cutting speed can be higher than the same uncoated tool. In some cases, the tool life can be extended by as much as eight times, while the cutting speed can be increased by 50%, but also improve the surface quality of the machining. Coating thickness is generally between 1 ~ 6μm, Vickers hardness of up to 3000 and more, and abrasion resistance, small friction. Coating in the re-sharpening can be worn off 30% or more, due to the cutting edge and cutting edge