Tungsten Carbide Cutting Tools Coating Material

Tungsten carbide cutting tools surface coating material must have a high hardness, wear resistance, chemical stability, does not react chemically with the workpiece material, heat resistant to oxidation, low coefficient of friction, as well as other requirements attached to a solid substrate. Clearly, a single coating material is difficult to meet the above requirements. So tungsten carbide coating material has been coated with a single initial TiC, TiN hard coatings, experienced TiC, TiN, AlO composite coating and development stage TiCN, TiAlN multiple composite coating film now has a diamond-coated layer, the tool coating performance has been greatly improved.

Tungsten carbide cutting tools coating materials, processes the most mature and most widely used is TiN. But TiN and TiC matrix bond strength is less than a coating easy to peel off, and the hardness of TiC is not as high, at higher cutting temperatures easily oxidized film is ablated. TiC coating has high hardness and wear resistance, oxidation resistance , but brittle, the impact of intolerance. TiC and TiN, TiCN both the advantages of the two materials, which in the coating process can be continuously changed by C, N component nature of control TiCN, and a multilayer structure formed of different components, can reduce the internal stress of the coating, to improve the toughness increase the thickness of the coating of tungsten carbide cutting tools to prevent crack propagation and reduce chipping.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn