Why CBN inserts is the fit tools for the wear parts machining? Such as RNGN120400/RNGN120700 PCBN insert.

At present, the casting wear parts have been widely used in mining, cement, electric power, road construction machinery and refractory materials. The

casting wear parts are difficult to process due to irregularities in surface, uneven hardness, and a large amount of hard spots and pores inside. In addition, when the 

wear parts are processed, large cutting force and cutting heat are generated, which generates large vibration and impact, which will accelerate the wear of the tool. 

When the ordinary carbide tool is used for machining, the tool is often chipped or burned, resulting in an increase in processing cost.

PCBN inserts with high strength and wear resistance, good thermal stability,  good thermal conductivity and strong chemical stability, all the unique advantages 

make the CBN inserts become the fit cutting tool for ferrous metals machining such as nickel-chromium chilled cast iron and high-chromium cast iron turning.