Page 179 - ISCAR(HOLE_MAKING_CATALOG_65)
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USER GUIDE




         Recommended Machining Conditions for Solid Carbide Drills D=0.8-2.9 mm
                                               Tensile   Hardness  Material   Cutting   Feed (mm/rev) vs. Drill Diameter
                   Material         Condition  Strength               Speed Vc
           ISO                                 [N/mm ]   HB     No. (1)  (m/min)  Ø0.8-1.4  Ø1.5-1.9  Ø2-2.4  Ø2.5-2.9
                                                    2
                        < 0.25 %C   Annealed    420      125     1     50-100  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                        >= 0.25 %C  Annealed    650      190     2     40-100  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Non-alloy             Quenched and                                                                        SOLID CARBIDE DRILLS
            steel and cast  < 0.55 %C  tempered  850     250     3      40-85  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            steel, free
            cutting steel  >= 0.55 %C  Annealed  750     220     4      40-85  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                  Quenched and   1000    300     5      40-85  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                    tempered
                                    Annealed    600      200     6      40-75  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
          P Low alloy and cast steel (less      930      275     7      40-60  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            than 5% of alloying elements)  Quenched and   1000  300  8  40-60  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                    tempered
                                                1200     350     9      40-60  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                    Annealed    680      200     10     30-50  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            High alloyed steel, cast
            steel and tool steel  Quenched and   1100    325     11     30-50  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                    tempered
                                     Ferritic/  680      200     12     20-35  0.03-0.06  0.04-0.08  0.05-0.10  0.06-0.10
            Stainless steel and cast steel  martensitic
                                    Martensitic  820     240     13     20-35  0.03-0.06  0.04-0.08  0.05-0.10  0.06-0.10
          M Stainless steel         Austenitic  600     180      14     20-35  0.03-0.06  0.04-0.08  0.05-0.10  0.06-0.10
                                  Ferritic/pearlitic     180     15     40-80  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Grey cast iron (GG)
                                     Pearlitic           260     16     40-70  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                     Ferritic            160     17     40-95  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
          K Nodular cast iron (GGG)
                                     Pearlitic           250     18     50-95  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                     Ferritic            130     19     40-80  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Malleable cast iron
                                     Pearlitic           230     20     40-80  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                                   Not cureable          60      21    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Aluminum- wrought alloy
                                     Cured               100     22    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
                        <=12% Si   Not cureable          75      23    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Aluminum-                Cured               90      24    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            cast, alloyed
                        >12% Si  High temperature        130     25    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
          N             >1% Pb     Free cutting          110     26    80-150  0.03-0.10  0.05-0.15  0.07-0.17  0.08-0.20
            Copper alloys            Brass               90      27    50-150  0.05-0.12  0.07-0.15  0.08-0.18  0.09-0.18
                                 Electrolitic copper    100      28    60-160  0.05-0.15  0.07-0.18  0.08-0.20  0.09-0.22
                                   Duroplastics,                 29
                                   fiber plastics
            Non-metallic
                                   Hard rubber                   30

                        Fe based    Annealed             200     31     10-20  0.02-0.04  0.03-0.06  0.04-0.07  0.04-0.08
                                     Cured               280     32     10-20  0.02-0.04  0.03-0.06  0.04-0.07  0.04-0.08
            High temp.              Annealed             250     33     10-20  0.02-0.04  0.03-0.06  0.04-0.07  0.04-0.08
            alloys      Ni or Co
          S             based        Cured               350     34     10-20  0.02-0.04  0.03-0.06  0.04-0.07  0.04-0.08
                                      Cast               320     35     10-20  0.02-0.04  0.03-0.06  0.04-0.07  0.04-0.08
                                               RM 400            36     10-20  0.02-0.03  0.02-0.03  0.03-0.04  0.03-0.04
            Titanium Ti alloys     Alpha+beta
                                   alloys cured  RM 1050         37     10-20  0.02-0.03  0.02-0.03  0.03-0.04  0.03-0.04
                                    Hardened           55 HRC    38     10-20  0.01-0.02  0.01-0.02  0.02-0.03  0.02-0.03
            Hardened steel
          H                         Hardened           60 HRC    39     10-20  0.01-0.02  0.01-0.02  0.02-0.03  0.02-0.03
            Chilled cast iron         Cast               400     40     10-20  0.01-0.02  0.01-0.02  0.02-0.03  0.02-0.03
            Cast iron               Hardened           55 HRC    41     10-20  0.01-0.02  0.01-0.02  0.02-0.03  0.02-0.03
         •  For drill with lengh to diameter ratio larger than 6xD, reduce feed by 20%
         •  If the RPM exceeds 10,000, a dynamic balance should be done to the system
         •  Maximal radial and axial runout should not exceed 0.01 mm
         •  As a starting value, the middle of the recommended machining range should be used, then (according to wear results),
         conditions can be changed in order to optimize performance.
         (1)   For workpiece materials list, see pages 495-524










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