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Turning tools \ Technical introduction – PCD turning

                     Ultra-hard diamond cutting materials and their areas of application












        with diamond as cutting material, the material groups   material    cutting speed Vc (m/min)
        of non-ferrous metals, plastics, graphite are ma-  aluminium and aluminium alloys 0 - 20% SiC  1250 – 5000
        chined primarily. as illustrated in the table, very high
        cutting speeds are possible with low wear.   plastics               500 – 3000
                                          non-ferrous metals, bronze, brass, copper  750 – 3200
                                          GFK (80%)                         300 – 800
                                          graphite CFK (80%)                250 – 800
                                          MMC                               750 – 1300
                                          GGC                               300 – 600


                     Selection of the cutting material types when machining with PCD

        Our standard range includes two cutting materials with the following properties:
        ADC                                                ADC-S
        ƒ Polycrystalline diamond as a composite cutting material with a cemented   ƒ Polycrystalline diamond as a composite cutting material with a cemented
         carbide backing with high cutting sharpness and low cutting pressure in a  carbide backing (coarse grain)
         narrow tolerance field                            ƒ With favourable cutting sharpness and low cutting pressure with narrow
        ƒ Low wear resistance with high durability          tolerances
        ƒ Fine grain                                       ƒ Low wear resistance with high durability
        ƒ Fine finishing and smoothing of all non-ferrous metals with low proportion of  ƒ Fine finishing and smoothing of all non-ferrous metals with low proportion of
         abrasive filler materials                          abrasive filler materials

        A variety of diamond cutting materials are also available outside of our standard ranges:
        MDC DM                            TFC PD                           PDC-CU-S DP composite
        Solid mono-crystalline diamond without structure.   Solid poly-crystalline CVD diamond without binding   Solid poly-crystalline diamond cutting material
        Absolute cutting edge sharpness and cutting edges   agent or cemented carbide backing. Perfect cutting   (composite) without cemented carbide backing,
        without notches, thus virtually no cutting pres-  edge sharpness and cutting edges free of notches.   coarse grain, favourable cutting edge sharpness and
        sure (burr-free) and compliance with narrowest of   No cutting pressure and compliance with the   low cutting pressure for narrow tolerances, highly
        tolerances ± 0.001 mm. Absolute wear resistance   narrowest of tolerances. Maximum wear resistance   suitable for milling tools with high cutting depths.
        and highest thermal conductivity (HSC and HPC), low  and very high thermal conductivity (HSC and HPC),   Very high wear resistance with increased toughness
        toughness. Super finishing of all non-ferrous metals   higher toughness. Super finishing up to semi-finish   due to very high diamond volume. Fine finishing,
        and non-ferrous materials without abrasive fillers   of all non-ferrous metals and non-ferrous composite   finishing and milling of all non-ferrous metals and
        (HSC high-tech).                  materials with high proportions of abrasive fillers.   non-ferrous materials with very high proportions
                                          Maximum service life with GFRP (80% glass) and   of abrasive fillers. Maximum material removal rate,
                                          CFRP.                            CFRP and GFRP

                     Chip breaker and cutting edge designs with diamond cutting materials

        A variety of diamond cutting materials are also available outside of our standard ranges:
        Neutral                           X1                               X2
        ƒ Medium cutting pressure for solid or robust   ƒ Virtually no cutting pressure for thin-walled or   ƒ Increased cutting pressure for solid or robust
         workpieces in the narrowest tolerance field with   robust workpieces in narrow tolerance field with   workpieces in narrowest tolerance field with good
         excellent surface quality         medium surface quality            surface quality
        ƒ Long continuous chips produced and no chip   ƒ Favourable chip breaking owing to chip breaker  ƒ Favourable chip breaking owing to chip breaker
         breaking                          geometry                          geometry











            Cutting radius                  X1                                       X2
              (mm)              ap (mm)             f (mm/U)             ap (mm)              f (mm/U)
                            Min.      Max.      Min.       Max.      Min.      Max.       Min.      Max.
               0,1          0,05      0,30      0,02       0,05
               0,2          0,06      0,40      0,03       0,08      0,50      0,80       0,08      0,12
               0,4          0,10      0,80      0,04       0,15      0,60      1,50       0,08      0,20
               0,8          0,15      1,00      0,08       0,20      0,70      1,50       0,15      0,30
               1,2          0,30      1,50      0,12       0,25      0,80      2,00       0,20      0,40
       Source: Hahn+Kolb Werkzeuge GmbH
       Technical data subject to change.             www.iconridge.com
       Availability subject to country specific rules and regulations.                          296

   0581_EN_2018_KERN[21847883]-n.indd   582                                                           12/17/2018   3:33:04 PM
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