WA1For milling applications ｜ Whisker ceramic for hardened materials

Rapid material removal and long tool life for hard milling

Mill hardened materials (HRC 45-62)
Reduce costs and eliminate grinding

Features

  • Mill hardened materials (HRC 45-62)
  • Reduce costs and eliminate grinding

Tooling application

Hardened materials from HRC 45-62
Tool steels, Mold steels, Chilled irons, Powdered metal, Stellite welded overlays, etc.

Cutting conditions

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Insert DOC(inch) HRC 45-55 HRC 55-60 HRC 60-62
Cutting speed(SFM) Feed(IPT) Cutting speed(SFM) Feed(IPT) Cutting speed(SFM) Feed(IPT)
RPG-21.51 .030 850 - 1000 .004 700 - 900 .003 550 - 800 .0025
RPG-32 .045 850 - 1200 .0045 700 - 1100 .003 550 - 1000 .0025
RPG-43 .050 850 - 1300 .005 700 - 1200 .0035 550 - 1100 .003
RNG-32 .045 850 - 1200 .0045 700 - 1100 .0045 550 - 1000 .0025
RNG-43 .045 850 - 1400 .0045 700 - 1300 .045 550 - 1200 .003
RNG45 .075 850 - 1400 005 700 - 1300 .004 550 - 1200 .003

Note: Speeds and feeds are approximate starting points

Guidelines for Success

  • Minimize overhang and have a rigid set-up
  • Keep cutting engagement at 1/2 to 5/8 of the cutter diameter
  • Reduce feed by 25% upon entrance and exit of the cut
  • Use air blast, do not use coolant
  • Use helical interpolation to ramp down into a cavity
  • Increase feed rates in corners to compensate for heat loss
  • Use climb milling
  • Use shrink fit holders whenever possible
  • Safety first - machine within recommended conditions
  • As DOC gets smaller, speed should increase to compensate for heat loss
  • Adjust speed to maximize plastic deformation

Tool lineup

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