Solid CBN Inserts Turning Brake Drum

The brake drum is one of the important components in the vehicle brake. Since it is a rotating element in the friction pair of the brake lining, its friction 

working surface (inner cylindrical surface) is extremely easy to wear, so it is a consumable part in maintenance, and the annual supply is large. It is especially 

important to choose the right tooling product to machine the brake drum.

Workpiece: Brake Drum                                   Material: HT250

Hardness: HB190-220                Insert Grade: IBN400 Coated Type          Inserts Model: CNGN

Cutting parameter:  Vc=1130m/min ap=2-3mm f = 0.5mm/r

Compared with other CBN inserts: The tool life increase at least 60%!