Milling hardened steels from 55-70 HRc with VHC technology

Advantages:
1. No EDM is required (milling is much faster)
2. Polishing can be minimized
3. One single clamping, so it is easier to achieve accurate results

Different strategies possible:

HPM (High Performance Machining) HSM (High Speed Machining)
  • High cutting speed (Vc)
  • Large cutting depth (Ap)
  • Small cutting width (Ae)
  • Medium feed per tooth (Fz)/ Table feed (Vf)
  • High cutting speed (Vc)
  • Small cutting depth (Ap)
  • Small cutting width (Ae)
  • High feed per tooth (Fz) / Table feed (Vf)

Tips:

  • Use a rigid milling machine and clamping method
  • Try to minimize entering and exiting the workpiece
  • Use minimum lubrication or oil-mist-spray

Van Hoorn Carbide’s leading technology for hardened materials (55-70 Hrc): :

  • 2 Flute Ballnose geometry VHPK
  • 4 Flute Torus geometry VHPT
  • Multiple Flute VHPM
  • Multiple Flute with corner radius VHPMR

Coating:

  • Coating consisted of multiple layers
  • Nano structure
  • Extreme hardness
  • Longer tool life

Depending on the workpiece, different strategies can be chosen. Chip removal and coolant in such applications are crucial.