2. Commonly used coatings (1) Titanium nitride coating (TiN) Previous page Pollen screens have become an essential tool for individuals who suffer from allergies or sensitivities to pollen. These screens are specifically designed to filter out pollen particles, providing relief and creating a more comfortable indoor environment. Made from a fine mesh material, pollen screens effectively trap and prevent pollen from entering through windows and doors, reducing the allergen levels inside. By blocking pollen, these screens help alleviate symptoms such as sneezing, itching, and congestion. With their easy installation and low maintenance requirements, pollen screens offer a practical and effective solution for creating a pollen-free sanctuary within your home, allowing you to enjoy the beauty of nature without the discomfort of allergies. Pollen Screen,Anti Pollen Mosquito Net Screens,Anti-Pollen Mesh Screen,Pollen Filter Screen Jinwu Glass Fiber Co., Ltd , https://www.jwglassfiber.com
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 titanium aluminum nitride 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 cemented carbide tools 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 in the 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. In addition, multi-layer coatings can be used, which also embed other coatings between the surface layer and the tool base to further increase tool life.
3. Successful application of coating
Achieving a cost effective application of the coating may depend on a number of factors, but for each particular processing application, there is typically only one or several possible coating options. The correct choice of coating and its properties may mean a difference between a significant increase in processability and little improvement. Cutting depth, cutting speed and coolant can all have an effect on the application of the tool coating.
Since there are many variables in the processing of a workpiece material, one of the best ways to determine which coating to use is through trial cutting. Coating suppliers are continually developing new coatings to further improve the coating's high temperature, friction and wear resistance. It is always a good thing to work with the coating (tool) manufacturer to verify that the latest and best tool coatings are used in the process.
How to choose the right tool coating (2)