This grayish color PVD coating is slightly harder than TiN coating but not as tough. The coating is designed for enhanced abrasive wear resistance.
Titanium CarboNitride, also known as Carbo-Nitride, is a thin film developed from Titanium Nitride. This coating is a little harder than a TiN coating and carbide, and can show a slightly lower friction coefficient in many applications. TiCN coating also has an extremely strong adhesion or molecular bond to the substrate material.
TiCN coating provides a uniform coating with no buildup on the edges. This coating is also non-toxic and FDA compliant and can be used in medical surgical devices and food processing equipment. TiCN is applied using an environmentally friendly process.
TiCN is harder than TiN, but it is not as tough and may not be the best for every application. TiCN is typically used on cutting tools to eliminate galling, fretting, micro welding, seizing and adhesive wear.
This coating has little dimensional impact, and is perfect for close tolerance parts.
The advantage of using a coating with cutting tools usually has to do with heat displacement. The coating protects the tool from the high heat involved with most machining applications. Although rotary broaching is a relatively low heat operation, the hardness contributes to decreased downtime and longer tool life.
The TiCN coating part number code for Polygon’s rotary broaches is the letter ‘F’. For example, if you would like to order a 1/4″ hex broach with 1/2″ shank and TiCN coating, you would add the letter ‘F’ to the end of the part number H02525B. The new part number would be H02525BF.