Sumitomo - Полный каталог инструмента - 2016 EN

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    Chipbreaker
    NEG Type / NEF Type
                                                              For Exotic Alloys and Stainless Steel Turning

    General Features                                                                                                                 Application Range                 NMU

    NEG/NEF type chipbreaker for exotic alloy machining                                                                                  4,0 NEG                                         Feed Rate
    can be used for Titanium alloys, heat-resistant alloys                                                                                                                         0,4 (mm/rev)
    and a variety of other exotic alloys.                                                                                                                        NEX
    They deliver excellent wear resistance and superior
    chip management. These chipbreakers can solve                                                                                         2,0 NSU
    quality problems caused by the unstable tool life and
    poor chip control provided by conventional chipbrea-                                                                                       NEF
    kers for exotic alloys.
Inserts                                                                                                                                      0 0,2

                                                                                                                    Depth of Cut (mm)
    NEG Chipbreaker for Roughing

    Provides excellent wear resistance and chip control from general-purpose machining to roughing applications.
    Reduces damage to insert and eliminates trouble from chips specific to exotic alloys. Also demonstrates very
    high versatility.

    Crater wear advancement                                                                                                                                           Cross Section of Chipbreaker
    is prevented by the round
    bumps, whilst maintaining                                                                                                                                                      1,75
    excellent control.
                                                                                                                                                                      0,09           30°
    The cutting edge
    maintains the strength                                                                                                             Excellent chip manage-
    slowing the progress
    of crater wear.                                                                                                                    ment and wear prevention

                                                                                                                                       is delivered by the special

                                                                                                                                       rake face design.

    Cutting Performance – NEG Type                            Work Material:                                                           Conventional tool (S10)
                                                              Inconel 718
    Heat Resistant Alloy                                                                                                               Notch wear / poor chip control
                                                              Insert:                                                                  Conventional tool (S10)
       Chipbreaker type: NEG (AC510U)                         CNMG120412

      Suppresses the chipping of peripheral cutting edge and  Cutting Data:
      notch wear. Excellent chip management.                  vc = 40m/min
                                                              doc = 2,5mm
    Titanium Alloy                                            f = 0,2mm/rev
                                                              Wet
      Chipbreaker type: NEG (AC510U)                          Tc = 7min

    Suppresses crater wear and flank wear.                    Work Material:                                                           Crater wear / flank wear / poor chip control
    Excellent chip management.                                Ti-6Al-4V

                                                              Insert:
                                                              CNMG120412

                                                              Cutting Data:
                                                              vc = 65m/min
                                                              doc = 2,5mm
                                                              f = 0,2mm/rev
                                                              Wet
                                                              Tc = 8min

    Application Example – NEG Type

    Inconel 718, machine component                                                                                                     Pure Titanium (Ti grade 3), machine component

                                    3 pcs                                                                                                                                   3 pcs

                                              3                                                                                                                                       1,5
                                            times                                                                                                                                    times

                                                  1                                                                                                                                   2
                                                 pcs                                                                                                                                 pcs

    3x tool life and improved    NEG Competitor                                                                                        1,5x tool life and improved      NEG Competitor
        chip management        (AC520U)                                                                                                     chip management            (EH510)

    Insert:  CNMG120408 NEG (AC520U)                                                                                                   Insert:  CNMG120408 NEG (EH510)

    Cutting Data: vc=50m/min, doc=1,5mm, f=0,3mm/rev, Wet                                                                              Cutting Data: vc=80~100m/min, doc=1,0mm, f=0,25mm/rev, Wet

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