About CBN inserts for High carbon brake disc machining:
In recent years, the high-carbon brake disc has become popular, the requirements for the three major elements
of chemical composition are:
C: ≥ 3.7 Si：≥ 1.6 Mn:0.4∽0.8
The high carbon brake disc machining difficulties are:
- Black spots on the surface of the brake surface are exposed, causing an excessive surface roughness and suspected
- The machining tool life is reduced by 20-60% compared to ordinary brake discs.
Ensoll PCBN inserts IT750 exhibits excellent performance for this application and greatly improve the tool life.