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Milling formulas

Cutting Speed, (Vc)

Spindle Speed, (n)

Metal removal rate, (Q)

Q Metal removal rate formula by preziss

Feed per revolution, (Fn)

Feed per tooth, (Fz)

Fz formula

Feed rate, (Vf)

Vf formula

Drive power, (Pmot)

Drive power formula by preziss

n              Speed                                 rpm
Dc            Cutter diameter               mm - inch
ap            Depth of cut                      mm - inch
ae            Width of cut                       mm - inch
Z              Number of teeth               pcs
Vc            Cutting speed                    m/min - ft/min
Vf             Feed rate                            mm/min - inch/min
Fz             Feed per tooth                   mm - inch
Q              Metal removal rate           Cm3/min - inc3/min
Pmot       Drive power                        KW - HP
hm           Medium chip thickness    mm - inch
Kc             Specific cutting force        N/mm2 - N/inch2
η               Efficiency of machine       (0,7 - 0,95)
K               Approach angle                    º
φs             Engagement angle               º
φ1             Up-cut milling area              º
φ2             Synchronus milling area     º
Kc              Specific cutting force        N/mm2 - N/inc2
y                Reverse engagement        mm - inch

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