TC Roll (also known as Tungsten Carbide Roller Ring), superior performance, stable quality, high processing precision, good wear resistance and high impact resistance.

The processing position of the Rolls (excircle machining or groove machining) is different, the cutting tools selected are different, and the cutting edge processing is different. 

Commonly used inserts models such as: RNGN060300, RNGN070300, RNGN120300, etc.

The hardness of the Roll affects the tool used. The PCBN tool is generally used for lower hardness, and the PCD tool is used for higher hardness.

When machining the TC Roll, the tool may be honed. The so-called honing process is to solve the defect of the micro-notch of the cutting edge of the tool after cutting, so that 

the sharp value is reduced or eliminated, and the smoothness is achieved. Sharp and durable. However, the honing treatment should not be too large, because the contact surface 

of the cutting edge of the inserts becomes larger after the honing, and the cutting resistance also increases. The TC Roll is the hard and brittle material, which is liable to cause collapse

and damage the workpiece.

At the same time, the cutting edge of the tool should not be too sharp. Too sharp will reduce the service life of the tool.