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成都工具研究所近期开发研究的刀具氮化钛物理气相沉积(PVD—physicalvapor Deposition)涂层工艺,是属于八十年代的新技术。氮化钛具有高硬度、化学稳定性较好、与被加工材料摩擦系数小等优点,一直被选用制作化学气相沉积(CVD—Chemical vaporDeposition)硬质合金涂层刀片的涂层材料。但由于CVD 涂层温度较高(900—1100℃),不适合制作涂层高速钢刀具(尤其是精密刀具),直到七十年代后期,国外研究成功刀具氮化钛PVD 涂层技术,才使涂层高速钢刀具的设想得以实现。涂层高速钢刀具的出现,被称为高速钢刀具的革命,它可成倍提高刀具寿命,并可提高切削速度30%左右。因此,在国外工具制造业中它正处于迅速发展的阶段。工具所研究的氮化钛PVD 涂层技术,系标用空心阴极电子枪反应离子沉积原理,采用与南充机器厂协作研制的刀具涂层试验设备。该技术包括:(1)刀具表
Recently, the tool technology developed by Chengdu Tool Research Institute developed a PVD-physical vapor deposition coating process, which belongs to the new technology of the 80’s. Titanium nitride has been used as a coating material for CVD-Chemical vapor deposition (CVD) carbide coated blades because of its high hardness, good chemical stability, and low coefficient of friction with the material to be processed. However, due to the high temperature of CVD coating (900-1100 ℃), it is not suitable for making coated high speed steel tools (especially precision cutting tools). Until the late 1970s, foreign successful research tools titanium nitride PVD coating technology The idea of coated HSS tools was realized. The emergence of coated high-speed steel tools, known as the revolution of high-speed steel cutting tools, it can double the life of the tool and can increase the cutting speed of about 30%. Therefore, it is in a stage of rapid development in foreign tool manufacturing industry. Tools studied titanium nitride PVD coating technology, the standard standard hollow cathode electron gun reactive ion deposition principle, with the cooperation with the Nanchong Machinery Factory developed tool coating test equipment. The technology includes: (1) Tool Table