PB10 (PBE)
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14
Fig. 6.
View of the feed indicator
Rotate the handles to the right to continue
machining. Use such a feed rate that
allows a continuous chip cut. If the feed rate is too low, only light stringer chips are
removed. If the feed rate is too high, machining is difficult and the chips are rough or
torn. Never allow the tool bit to burnish the surface. If chatter problems occur, change
the feed rate. Stainless steel, which work hardens, must be worked with a high
enough feed, 0.08
–0.15 mm (0.003–0.006’’) per rotation, to stay under the work
hardened surface.
After the pipe end is machined fully, stop rotating the handles and allow several
more turns of the spindle to improve the finish of the surface.
Then, use the ON/OFF
lever, or the ON switch in the machine with electric motor, to turn off the motor, and
wait until the rotation stops. Next, rotate the handles to the left to separate the tool
bits from
the pipe
end
to
at
least
3 mm
(0.12’’).
Then, rotate the 24 mm socket wrench
to the left to loosen the draw nut and release the clamping, and remove the machine
from the pipe.
Use petroleum ether to clean the pipe from excess coolant. Clean the machine
with a cotton cloth without using any chemical agents.
Feed direction
Feed = 0.11 mm
(0.004’’)
