GUHRING - Навигатор по режимам резания - 2010 EN

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Coolant

Filter quality
When applying solid carbide micro-precision drills we
recommend constant monitoring of the lubricant‘s filter
quality due to the extremely small coolant duct diameters,
for example with our check instrument CC 3000.

Required coolant pressures and volumes
for Ratio drills and T800 tools
The information about coolant pressures and volumes are based on average coolant duct sizes and standard machining tool con-
ditions.
The Guhring PQ 3000 measuring system takes pressure and volume of coolant flow directly in the machining tool using the origi-
nal tool.

      maximum pressure                Coolant pressure and volume for
      minimmum pressure    Ratio drills with 2 or 3 coolant ducts up to
coolant pressure p in bar
                                                12 x D and HT 800 system

       80 80                                               60 60

       60                                                         45
       40 40
                                                              20  30
       20                                                     25  15
                     8                                        10
                     4
                    5 10 15 20 25 30                       35
                                       Tool diameter [mm]
                                                                  maximum volume
Coolant pressure and volume                                       minimum volume
for RT 800 and LT 800 system with central
coolant duct and radial exits.                                           Coolant volume
                                                                                  V in l/min

60                                                                        90 90
                55                                                                75

50

40 60

30 45

                23                                                                30
20                                                                        25

                25

10 15                                                                             15
                                                                          8

                                                                          5

10 20 30 40 50 60 70 80 90 100

                           Tool diameter [mm]

                           guhring@guhring-tools.ru                                           61
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