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General
Notes
Carbide insert drills work best in higher
horsepower, rigid machines.
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The more rigid the machine, the more trouble free
the drill will operate. A rigid machine reduces chatter, vibration and
premature fracturing of inserts.
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Higher horsepower allows for higher feed rates.
Higher feed rates yield faster cycle times and can reduce or eliminate
stringy chips.
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The slug produced by drilling through a
workplace can sometimes become jammed between the drill and workholding
device. To minimize the likeliness of this happening, provide ample
clearance in this area.
Methods
of Holding and Alignment
| TURNING CENTERS - |
A standard 1. D. holder is sufficient. If using a DM
or DZ style drill, make sure that the drill slot or holes are
aligned with the coolant hole of the holder. Align the drill's
inserts along the X-axis plane to control the drill size with the
machine's X-axis offset.
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| MILLING CENTERS - |
Use a standard end mill holder. Some shanks may need
to be cut off for the shoulder of the drill to sit against the
face of the tool holder. |
Coolant
We strongly suggest thru‑the‑tool
coolant on all our drills. This directs the coolant exactly where you need
it. It also helps evacuate the large volume of chips created by the drill.
A normal coolant pump should be sufficient to deliver enough coolant for
the chip evacuation. Flood coolant is acceptable when the drilling depth
does not exceed a 2:1 ratio to the diameter.
Note: On some CNC machines, the rapid rate of
tool positioning does not allow enough time for coolant flow to begin
prior to drill contact with the workpiece. If the drill begins cutting
without coolant, even for a second or two, insert life can be shortened
considerably. Adding a short dwell in the program, to assure coolant flow
before workplace contact, will greatly enhance insert life and drill
performance.
Programming
Tips
We do not recommend pecking of the drill in short
hole applications or when the drill is in the vertical position. Chips may
fall to the bottom of the hole and pinch between the insert and hole
A simple method for reducing stringy chips is to
create a small loop program which allows the drill to pause every
.025‑.050 depth. This method breaks up the stringy chip and allows
the coolant to evacuate the chips.
It is possible to bore with the drill, but we do not
recommend it. The drill is designed for cutting from solid. If the inserts
are oriented correctly, you can slightly offset the drill to achieve a
desired size.
If
your problem or question is not listed here or you need additional
information, please call us at 1-800-438-1538
for
assistance.
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