Basically, any column drilling machine or NC/CNC machining center with sufficient power and speed are suitable for the flow drilling process with centerdrill.
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|
|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
Centerdrill flowdrilling in stainless steel:
- Centerdrill core hole diameter + 0,1 mm from M8 to M12
- 10 - 20% lower speed (RPM)
- higher machine performance => approx. 30%
Centerdrill flowdrilling in non-ferrous metals:
- Up to 50% higher speed (RPM)
Feed rate for Centerdrill flowdrilling:
- 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.