Hard alloys can be used in the chemical
vapor deposition method has been coated with titanium carbide, titanium
nitride, aluminum oxide hard or composite layer. Is the development of physical
vapor deposition method can be not only used for hard alloy tool, can also be
for high-speed steel cutting tools, such as drill hob, taps and milling. Hard
coating as hinder chemical diffusion and heat conduction of the barrier, the
cutting tool in the cutting wear slower. The life of blade coating and coating
compared to increase about 1 ~ 3 times
Because in high temperature, high pressure,
high speed, and in corrosion of fluid medium, the parts, the application of
difficult to machining materials more and more, the level of automation of
machining and on machining accuracy requirements become more higher.
In order to adapt to the situation and
direction of development of the tool will be the development and application of
new cutting tool materials; further development tool of gas phase deposition
coating technology, with high strength and high toughness matrix deposition
higher hardness of the coating, the better to solve tool material hardness and
strength of the spear shield; in the further development of the structure of
indexable tool; improve the manufacturing precision of the cutting tool, reduce
the difference between the quality of the products and make the tool used to
achieve optimization.
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