MITSUBISHI MATERIALS CORPORATION
BACK

CBN (SINTERED CBN)

  • MB710 and MB730 for cast iron cutting.
  • BC5030 for high speed machining of cast irons now available.
  • The combination of the BC5030 insert geometry and the AOX cutter allows the use of up to 16 corners per insert, enabling cost effective high efficiency machining.
CBN (SINTERED CBN)

SELECTION STANDARD / RECOMMENDED CUTTING CONDITIONS
FINISHING
FINISHING
ROUGHING
ROUGHING
FEATURES AND BASE
Grade Application Features Main Component Coating Layer
MB710 For General Cutting General purpose grade with well balanced wear and fracture resistance. CBN TiC Al2O3
MB730 For High Speed Cutting Has the largest CBN content and therefore displays good thermal conductivity.
It is suitable for the high temperatures that are generated in high speed cutting.
CBN (High Content)
Co Base Alloy
BC5030 For high-speed machining
at large depths of cut
High-speed interrupted machining
at large depths of cut
High CBN content and high thermal conductivity. The whole insert is composed of sintered CBN. This enables high speed, high efficiency machining at larger depths of cut. The coating also ensures easy recognition of used corners. CBN
AIN
TiN

APPLICATION EXAMPLES
Tool AOX445R10008D AF5000R0404D
Insert SL-ONEN120404ASN (BC5030) LDCN190412R (MB730)
Machine Machining Centre Machining Centre
Workpiece imageDIN GG25 imageDIN GG25
Cutting Condition Cutting Speed (m/min) 1200 1200
Depth of Cut (mm) 2.8 0.3
Width of Cut (mm) 70 75
Table Feed (mm/min) 3057 5000
Feed per Tooth (mm/tooth) 0.1 0.33
Result 10 times longer tool life and 4 times higher efficiency than ceramics. Excellent machining with a surface finish of Ra < 1.6μm. When machining cast iron (DIN GG25) it was possible to achieve a surface finish of Ra < 0.6μm.