Centerdrill

Your specialist
for flowdrilling

Process data

Basically, any column drilling machine or NC/CNC machining center with sufficient power and speed are suitable for the flow drilling process with centerdrill.

Centerdrill Technig


Required process data for the flow forming and thread forming process

Reference values for material S235JR (St37/2) with 2mm wall thickness

Metric ISO thread per DIN 13

    Centerdrill Flow Forming Centertap Thread Forming
Thread
core hole
Ø mm
RPM Torque
Nm
machine
output kW
RPM Torque
Nm
             
M3 x 0,5 2,7 3000 2,5 0,7 1500 1,3
M4 x 0,7 3,7 2600 3 0,8 1100 3
M5 x 0,8 4,5 2500 4 0,9 900 4,9
M6 x 1 5,4 2400 5 1,1 800 9,3
M8 x 1,25 7,3 2100 7 1,5 600 19
M10 x 1,5 9,2 1800 10 1,7 380 39
M12 x 1,75 10,9 1500 14 1,9 300 50
M14 x 2 13 1500 16   300 55
M16 x 2 14,8 1400 19 2,4 200 57
M20 x 2,5 18,7 1200 29 3,0 160 105
             

Whitworth pipe thread

Thread core hole
Ø mm
RPM  Torque
Nm
machine
output kW
RPM  Torque
Nm
             
G1/8'' 9,2 1800

 10

1,7 380 13
G1/4'' 12,4 1600  16 2,1 280 34
G3/8'' 15,9 1400  24 2,6 200 46
G1/2'' 19,9 1200  32 3,2 140 94
G3/4'' 25,4 1000  55 3,8 100 128
             

 

Please note:

Processing of stainless steel:

  • Centerdrill core hole diameter + 0,1 mm from M8 to M12
  • 10 - 20% lower speed (RPM)
  • higher machine performance => approx. 30%

Processing of non-ferrous metals:

  • Up to 50% higher speed (RPM)

Feed rate:

  • 50 - 150mm/min
  • By using the centerdrill with flat cutters the feed rate should be substantially increased at the end of the process => 900mm/min

Depending on the application the machine conditions and the process data may also clearly vary from the above information. Our technicans are pleased to consult you.

 

Centerdrill Explorer – makes flow drilling easier!

All in one – Tool finder and process database for your application!

Our Centerdrill Explorer will show you the right RPM, feed rate and the required power for your machine, for a lot of materials und material thicknesses. All data available for the flow drilling process as well as for the thread forming process.

For example these data include specifications for following materials: stainless steel, steel, aluminum, copper and brass and for the material thicknesses between 0,8-12mm.

 

Contact

Centerdrill GmbH
Valterweg 19
D-65817 Eppstein

Tel. +49 (0) 6198/5858-97
Fax. +49 (0) 6198/5858-99
Mail: info@centerdrill.de

Hotline:

Tel. +49 (0) 6198/5858-97

Request:

Send directly to:
Mail: support@centerdrill.de

Orders:

Send directly to:
Mail: order@centerdrill.de

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