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    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

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