Coating type of cutting tool divided into the types of physical coating (PVD) and chemical coating types (CVD) in two ways, according to the principle, under normal circumstances, the physical coating types (PVD) using more.

The physical coating types (PVD)
PVD coated cemented carbide tool life can be extended under the same conditions
Even if the sharp edge can cover this coating and the substrate when the coating does not occur softening metamorphism

Chemical coating types (CVD)
Special tough crystalline organization, improve the wear resistance, fracture resistance
wide versatility, reduce the total amount of the required tools
The outermost layer is a special part of the dense layer of the titanium compound (refractory attached sexual)
outer layer of alumina the (particulate refractory attached sex) (rake face wear resistance)
inner tough titanium carbonitride new coating technology thick film
(Flank wear) (the rake face wear resistance)
carbide substrate

Improve tool integrated mechanical performance requirements difficult to meet due to a single coating types, coating types will become more diversified, composite; meet different machining requirements, coating types will be more complex, more targeted; in single component coating thickness will increasingly thin composite coating types and gradually become Nan crystallization; coating process temperature is getting lower and lower, the tool coating process will be more reasonable direction.

Chinatungsten Online can provide various sizes and grades of cemented carbide cutting tools, non-standard products are also customized according to customer requirements. Welcome to consult and purchase sales@chinatungsten.com, sales@xiamentungsten.com.