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

  • Rapid metal removal rates
  • Achieve outstanding surface finishes
  • Increased tool life vs carbides
  • Versatile round insert geometries provide clearance in every direction

Hardened Material

Target Industries

  • Mold Shops
  • Food processing
  • Tool & Die
  • Forging
  • Mining

Application Materials

  • Tool Steels
  • Chilled Irons
  • Stellite
  • Mold Steels
  • Powered Metal
  • Weld Overlays

Cutters

Cutters

Insert

  • Grade
    WA1
  • Shape
    RPG : Low tool pressure
    RNG : More rigidity

Recommend Cutting Conditions

INSERT DOC 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 0.003

Note: Speeds and Feeds are approximately starting points

Guidelines for Success

  • Minimize overhang and have ridged set-ups
  • Keep cutter engagement to 1/2 to 5/8 of the cutter diameter
  • Reduce feed upon entrance and exit of the cut by 25%
  • Use air blast without 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-do not exceed SFM
  • As DOC gets smaller speed should accelerate to compensate for heat loss
  • Adjust speed to maximize plastic deformation