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    KM Solid End Mill Torque & Horsepower Calculator – Kennametal

    For Solid 0º Lead Angle - Positive Rake Helical End Mills with KM Quick-Change Tooling

    These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.

    Conversion of Workpiece Material Rockwell (Optional)
    Metric
    Inch

    Conversion of Workpiece Material Rockwell (Optional)

    Skip this step if you already know the Brinell hardness number(HB)
    Characteristics of Workpiece Materials

    Characteristics of Workpiece Materials

    HB
    PSI
    Ultimate Strength shown for generic steel. Please enter the actual value of your workpiece material if available, for better accuracy You may look up this info through websites such as www.matweb.com
    End Mill Nomenclature

    End Mill Nomenclature

    in. mm.
    in. mm.
    in. mm.
    Machining Conditions

    Machining Conditions

    sfm m/min
    in.(DOC) mm (DOC)
    in.(WOC) mm(WOC)
    in. IPT (chip load) mm
    Most Common Workpiece MaterialsCm at W/D ratios:
    W/D < = 0.660.66 < W/D < 1.0W/D = 1.0
    Aluminum alloys1.01.051.1
    Carbon and alloy steels1.01.151.3
    Cast irons1.01.151.3
    Titanium alloys1.01.201.4
    Stainless steel, High-temperature alloys2.02.152.3
    MillingDepth of cutFeed per toothCw
    Category(min-max), in.(min-max), in.&nbsp;
    Light0.020-0.1000.003-0.0061.1
    Medium0.100-0.2000.006-0.0101.2
    Heavy duty0.200-0.4000.010-0.0201.3
    Direct Belt Drive.9
    Back Gear Drive.75
    Geared Head Drive.7-.8
    Oil - Hydraulic Drive.6-.9
    Safe Operating Conditions

    Safe Operating Conditions

    lbN
    lbN
    ft lbNm
    ft lbNm
    Calculated Machining Conditions

    Calculated Machining Conditions

    RPM
    (IPM)(no productivity formula)mm/min (no productivity formula)
    in (chip load at the cut) mm/min
    (IPM)(with productivity formula)mm/min
    in.3/min MRRcm3/min3
    in.2mm2
    Calculated Required Power

    Calculated Required Power

    lbf should not exceed Ft maxN should not exceed Ft max
    ft-lb should not exceed TpNm should not exceed Tp

    Machining Power

    HPckW
    hpkW

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    Workpiece Selection

    Standard

    ALL

    Material

    Select a Value

    Hardness

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        Hardness Scale

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          Permitted Groups :

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          SubGroup

          Hardness (HB)

          Hardness (HRC)

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