What is the difference between rigid tapping and synchronized tapping?

Rigid tapping and synchronized tapping refer to the same process: the CNC control electronically synchronizes the spindle rotation and Z-axis feed. Compensating tapping uses a floating tap holder to account for minor synchronization errors. Rigid tapping requires CNC controls with this capability (standard on most machines since 2000).

Can I tap without a floating holder in a CNC?

Yes, if your control supports rigid tapping (G84.2 or M29 on Fanuc). For machines without rigid tapping capability, use a compression-type tap holder with axial float of 0.5–1.0 mm to prevent tap breakage from feed/speed mismatch.

How do I calculate safe tapping depth for thread mills?

Thread milling feed rate depends on the tool's path, not spindle RPM. Use the formula: Avance (in/min) = RPM × Avance per Tooth × Number of Flutes. For a 3-flute thread mill at 2,000 RPM with 0.001 in/tooth: Avance = 2,000 × 0.001 × 3 = 6.0 in/min. The helical interpolation rate is calculated separately based on the thread pitch. ⚡ Calculated for Carbide-Tooling.com High-Performance Series. View Catalog →