VNGA CBN Inserts High Speed Continuous Cutting Powder Metallurgy

Due to the existence of porous structure, powder metallurgy has a certain fluctuation in hardness value in a small area. Even if the measured macro hardness is 

HRC20-35, the hardness of the particles after forming the part will be as high as HRC60, and these particles will lead to the cutting edge sharply worn, so choosing

the right PCBN tool is critical.

Workpiece: Turbocharger                       Material: HT250

Hardness: HRC58                      Insert Grade: BNT2 Coated Type               Insert Model: VNGA

Cutting parameter: Vc = 120m/min ap = 0.3mm f = 0.1mm/r

Compared with other foreign CBN inserts: The tool life increase at least 2 times!