Page 126 - ISCAR(HOLE_MAKING_CATALOG_65)
P. 126

USER GUIDE
      INDEXABLE DRILLS  Material            Vc (m/min)         57-66 dia.      Feed (mm/rev)       74-80 dia.


         Machining Conditions for Large Diameter DR-TWIST Drills


                                                                                 67-73 dia.
          Low Carbon Steel (<0.3% C)
                                             180-250
                                                                                 0.08-0.12
                                                               0.08-0.12
                                                                                                   0.09-0.14
          Carbon Steel (>0.3% C)
                                             160-220
                                                               0.12-0.18
                                                                                 0.12-0.18
                                                                                                   0.14-0.21
                                                               0.10-0.18
                                                                                                   0.12-0.21
                                                                                 0.10-0.18
          Low Alloy Steel (<HB300)
                                             150-220
                                                                                 0.10-0.15
                                                               0.10-0.15
          High Alloy Steel (>HB300)
                                                                                                   0.12-0.17
                                             130-180
                                                                                 0.08-0.15
                                                                                                   0.09-0.17
          Stainless Steel
                                             170-240
                                                               0.08-0.15
          Cast Iron
                                             130-200
                                                                                 0.10-0.20
                                                               0.10-0.20
          Ductile Cast Iron
                                                                                                   0.12-0.23
                                             330-380
                                                                                                   0.17-0.29
                                                               0.15-0.25
                                                                                 0.15-0.25
          Aluminum
          Ti Alloy (Ti 6AI)                  180-250           0.15-0.22         0.15-0.22         0.17-0.25
                                                                                 0.12-0.16
                                                                                                   0.14-0.18
                                              30-60
                                                               0.12-0.16














































   124    ISCAR
   121   122   123   124   125   126   127   128   129   130   131