GUHRING - Навигатор по режимам резания - 2010 EN

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Loadability of machine              - the required drive power                                             The occurring stresses are illus-
Please find the guidelines for      - the required torque                                                  trated for steel, cast iron and AlSi-
the possible load capacity of the   - whether the used machine                                             alloys. This shows that the stres-
machine with Ratio drills type RT                                                                          ses with AlSi7 are lower, however,
100 in the diagrams on these          spindle would be axially over-                                       the machine must be capable of
pages.                                loaded (feed force load-bearing                                      meeting the required values at
Depending on the tool diameter        capacity)                                                            relatively high revolutions.
the engineer may use these illus-   The minimum values (curves)
trations in order to determine the  refer to cutting procedures with a
following parameters simply and     new tool, whereas the maximum
quickly:                            values refer to a worn tool shortly
                                    before the end of its tool life.

rilling cast iron (GG25)                                                                               drilling Al-alloys (AlSi7)      max
                                                                                                                                           F
                                                                     max                          5                                    min    f
                                                                          Ff                      4
                                                                              Feed force Ff [kN]  3
                                                                     min                          2
                                                                                                  1

5 10 15 20                  25                                                                         35       10 15          20  25
        Tool diameter [mm]                                                                                 Tool diameter [mm]

                                  max                                         Power Pc [kW]       14                                     max
                                      Pc                                                          12                                     minPc
                                                                                                  10
                                  min                                                              8                               25
                                                                                                   6
                            25                                                                     4
                                                                                                   2

5 10 15 20                                                                                             35       10 15          20
        Tool diameter [mm]                                                                                 Tool diameter [mm]

                                                                                                  100

                                  max                                         torque Mc [Nm]      80
                                      Mc
                                                                                                  60
                                  min
                                                                                                  40                                     max
                            25                                                                    30                                     minM c
                                                                                                                                   25
                                                                                                  20
                                                                                                  10

5 10 15 20                                                                                             35  10 15 20
        Tool diameter [mm]
                                                                                                           Tool diameter [mm]

                                                                              guhring@guhring-tools.ru                                      63
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