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    Home News Information company news Tool coating

    Tool coating

    TIME:2019-03-01

    Commonly used coatings (1) Titanium nitride coating (TiN)
    TiN is a general purpose PVD coating that increases tool hardness and has a high oxidation temperature. This coating is used for high speed steel cutting tools or forming tools for very good machining results.
    (2) Titanium Nitride Coating (TiCN)
    The carbon added to the TiCN coating improves tool hardness and provides better surface lubricity, making it an ideal coating for high speed steel tools.
    (3) Nitrogen aluminum titanium or nitrogen titanium aluminum coating (TiAlN/AlTiN)
    The aluminum oxide layer formed in the TiAlN/AlTiN coating can effectively improve the high temperature processing life of the tool. This coating is available for carbide tools that are primarily used for dry or semi-dry machining. Depending on the ratio of aluminum to titanium contained in the coating, the AlTiN coating provides a higher surface hardness than the TiAlN coating, making it a viable coating option for high speed machining.
    (4) Chromium nitride coating (CrN)
    The good adhesion resistance of the CrN coating makes it the preferred coating for processing that is prone to build-up. With this almost invisible coating, the processing properties of HSS tools or carbide tools and forming tools will be greatly improved.
    (5) Diamond coating (Diamond)
    CVD diamond coating provides optimum performance for non-ferrous metal processing tools and is ideal for processing graphite, metal matrix composites (MMC), high silicon aluminum alloys and many other highly abrasive materials (note: pure diamond coating) The tool cannot be used to machine steel, because it produces a lot of cutting heat when machining steel and causes a chemical reaction that destroys the adhesion between the coating and the tool).
    The coatings used for hard milling, tapping and drilling are different and have their specific application.

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