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several commonly used tool coating

2018-11-30 11:20 View:
1. Titanium nitride coating (TiN)
 
TiN is a general-purpose PVD coating that improves 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 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 of built-up edge defects. 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 parts. Due to the large amount of cutting heat generated during the machining of steel parts, chemical reactions occur and the adhesion layer between the coating and the tool is destroyed.
 
The coatings used for hard milling, tapping and drilling are different and have their specific application. In addition, a multi-layer coating can be used, which also incorporates other coatings between the surface layer and the tool base to further improve tool life.
titanium diboride powder TiB2 CAS 12045-63-5
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