Page 641 - Iscar

USER GUIDE

Deep Hole Drilling Systems

Problem Possible Cause Solution
Chip evacuation problems Check that the coolant passages are clear and that the
Venturi slots are not damaged DEEP HOLE DRILLING
The drill breaks or Check center alignment of drill to workpiece
insert chips Center misalignment of drill
to workpiece Check workpiece and drill clamping rigidity

Workpiece or drill clamping Improve workpiece or drill clamping
rigidity problem
Poor surface finish Inadequate coolant oil Check the coolant oil and replace if necessary
Increase the cutting speed
Cutting speed too low

Chips block the fluid passages Clear the chips

Excessive leakage The drill was incorrectly Check all connections and the direction
of the coolant assembled, or the Venturi slots of the internal tube
of the internal tube are located
in the wrong direction
Chips block the fluid passages Clear the chips
Insufficient coolant Worn bushing or sealing device Check the bushing and seal and replace
flow at the cutting zone, if necessary
despite correct fluid Venturi slots are too wide (worn) Replace the internal tube
supply Internal tube shorter than the external tube Replace the internal tube to one with
a correct length
Insufficient coolant flow Adjust the fluid flow by raising the pressure; check the
Chips jam in the front filter and fluid quality
end of the drill

Connection Adapters Oil Pressure Heads
Various kinds of rotating and non-rotating drill Oil pressure heads are available on request.
connectors are available upon request.

Special Heads
Special form heads for trepanning or any other
special contours can be produced on request.

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