2014-Полный каталог по сверлам EN

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                                                 DRILLING (SOLID CARBIDE)

                                                 MHS

                                                 y Recommended Cutting Conditions

                                                                     Drill Diameter  & 3.0  & 6.0                           & 6.0  & 10.0                            & 10.0  & 12.0

                                                 Work Material       Conditions      Cutting Speed     Feed      Cutting Speed                               Feed      Cutting Speed     Feed
                                                                                         (m/min)     (mm/rev)        (m/min)                               (mm/rev)        (m/min)     (mm/rev)
                                                                     Hardness
                                                                                         40  70    0.10  0.20                                                             40 70    0.20  0.30
                                                 H 40HRC                                                        40  70                                   0.15 0.25

                                                 Heat-treated steel  40 50HRC       20  50        0.05  0.15  20  50                                   0.10 0.20  20 50         0.15  0.25
                                                 Pre-hardened steel

                                                                     50 55HRC       10  30        0.03  0.10  10  30                                   0.05 0.15  10 30         0.05  0.20

DRILLING RECOMMENDED CUTTING CONDITIONS FOR MHS  Note 1) When using a drill with a length over l/d 10, it is necessary to use a pilot hole as a guide.
                                                              (If no pilot-hole is used then drill breakage can occur)

                                                 Note 2) Use the shortest flute drill in the respective size as a pilot drill.

CUTTING
    DATA

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