Kyocera - Основной каталог 2010-2011 ENG

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    New Boring Bar Dynamic Bar

                                                                                                                  Superior chip evacuation
                                                                                                               (External coolant)

                                                                                                                      Dynamic Bar Competitor A Competitor B

 Boring   Tool holder design developed through stress analysis
                                                                                                                                           Inside the workpieceMaximum structural thickness for high tool holder rigidity
          Controls chattering to achieve stable machining

          Large chip pocket produces                                                                                                                           In the products of competitor A and B chips remain
          superior chip evacuation                                                                                                                             inside the workpiece, but chips from the Dynamic Bar
                                                                                                                                                               are all evacuated from the workpiece.

F

                                                                                                                                                                 Chip evacuation direction

    Dynamic design driven by the latest computer simulation technology

    Comparison of pocket length                                                                 Chip evacuation direction

                Pocket length

                                                                                                SCLC (P) type                                                    STLB (P) type

           Description         Pocket length (mm)                                 Better evacuation by backward chip ow
                        Dynamic Bar Competitor A
    A16-SCLPR09-18
    A20-SCLCR09-22             37 29
                               48 32

     The dynamic Bar achieves superior chip evacuation

    High rigidity and chattering resistance are ensured through the use
    of a special alloy and stress analysis technology. Previously unat-
    tained surface finish and dimensional accuracy are now achieved.

    Anti chatter vibration performance                                                Comparison of surface nish

    Good                                                       Vibration of the Dynamic Bar was minimal even at high cutting speeds,
                                                                                  enabling stable machining.

             5.5             5.0      15CrMo5                                                   Dynamic Bar   Competitor A                                       Competitor B  
                                      Vc=150m/min
    5                   4.5                                                                                                                                                    15CrMo5
                                      ap=0.5mm                                                                                                                                 Vc=210m/min
                                                                                                                                                                               ap=0.5mm
                                      f=0.1mm/rev                                 Surface wall                                                                                 f=0.1mm/rev
                                                                                                                                                                               A16Q-SCLPR09-18 type
    4 S16-SCLPR09 type                                                                                                                                                         CPMT090304XP(PV7020)
                                                                                                                                                                               L/D=4
                                                                   CPMH090304L-Y                                                                                               External coolant
    3

    2

    1                                                                             Surface                                                                                       Direction of
                                                                                     Roughness                                                                                    vibration
          Dynamic Bar Competitor A Competitor B                                                 Ra=0.4m      Ra=0.6m                                           Ra=3.4m
                                                                                                Rz=2.3m      Rz=3.6m                                           Rz=14.0m     measurement
            (AE-Type)
                                                                                  Oscillatory
           Maximum tool holder overhang (L/D)                                        waveform

F2                                               kyocera@kyocera-tools.ru
                                                    www.kyocera-tools.ru