Plunging strategies for drilling

Solution

reduce feed rate vf (mm/min.)

additional pecking for drilling depths > 0.5 x D or transition to radial machining

Attention: Danger of breakage through abrupt loadincrease!

Oblique plunging up to 15º (preferred): - reduction in feed rate vf (mm/min.) not required

Oblique plunging between 15º and 30º: - reduce feed rate vf (mm/min.) in accordance with the illustration on the right

Helical plunging: - for helical plunging on a milling cycle, we recommend a feed of 0.1 to 0.2 per cycle - reduce feed rate vf (mm/min.) in accordance with the illustration on the right - select preferred hole diameter 1.8 x D