Kyocera - Основной каталог 2010-2011 ENG

                                           для заказа - kyocera@kyocera-tools.ru                                        Milling

Terms and Angles of Milling Cutter                                                       Lead Angle and Chip Thickness

                               A: Axial Rake Angle                                                                   fz

                                                  (+)                                    Insert                         45°

                                           Cutter Height        C: Approach Angle        Chip’s Thickness        ap ap
                                                                    (Corner Angle)              0.7fz

                                                                     Cutting Edge Angle                    fz

                                                               I: Inclination Angle                                     75°

                     Cutter Diameter       T: True Rake Angle                            Insert

        (Diameter at Edge Point)

     R: Radial Rake Angle                                                                Chip’s Thickness
                                  (-)                                                                   0.97fz

Function of Tool Angle                                                                        fz                        90°
                                                                                         Insert
                                                                                                                 ap

                                                                                          1.00fz
                                                                                         Chip’s Thickness

Symbol  Name                                 Function                                              Effect

A Axial Rake Angle: A.R.   Controls chip ow direction and     When it is positive --- Good cutting performance and less
                           cutting force                                                    chip welding
R Radial Rake Angle: R.R.
                           Controls chip ow direction and     When it is negative--- Good chip evacuation
C Approach Angle           cutting force
                                                               When it is large --- Thinner chip thickness
T True Rake Angle          Controls chip thickness and chip                                 Less cutting load
                           ow direction
                                                               When it is positive --- Good cutting performance and less
                           Actual rake angle                                                chip welding, but lower edge strength

I Inclination Angle        Controls chip ow direction         When it is negative--- Higher edge strength but easier to weld

                                                               When it is positive --- Good chip evacuation
                                                                                            Less cutting resistance
                                                                                            Lower edge strength at corner part

        tanT = tanR  cosC + tanA  sinC
        tan I = tanA  cosC – tanR  sinC

                                                                                                                                   R

                                                                                                                                   Technical
                                                                                                                                      Information

                                                          kyocera@kyocera-tools.ru                                                 R29
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