Cemented carbide Taps Cutting & Applications - Part 3

Low-speed, large amount of feed cutting

To avoid the damage of cemented carbide taps broken and excessive cutting heat caused by increased dramatically clogging trench cutting edge of common cemented carbide taps, cemented carbide taps tapping generally use lower cutting speeds. The machine tapping generally use the cutting speed of a few meters / sec to 10 meters / sec, significantly lower than the thread milling and turning; while the manual tapping the cutting speed is lower. Further, taps axial feed mainly rely on its threaded spin into the cutting is performed automatically in accordance with the lead (pitch), and may not provide the separate axial feed drive. Even in the processing of high-precision machining center screw holes using synchronous axial feed drive federates still a lead (pitch) / rev, much higher than the feed rate of the thread milling.