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HINTS FOR SUCCESSFUL ENDMILL USAGE
It is assumed that the workpiece clamping and machine size and
power are adequate for the intended operation.
Always select the most suitable tool for the job on hand; a few
minutes spent on selection can save hours of machining. Use
roughing end mills when removing large amounts of stock; two
or three flute end mills for deep slotting applications, for edge
cutting and espically when machining light alloys. Use multi-flute
end mills for edge cutting as well as for light finishing cuts.
Use threaded shank or flatted shank cutters where heavy stock
removal and high tooth loads are involved. Plain shank cutters
are particularly suitable for quick change CNC applications and
for pre-setting off the machine.
Where possible check workpiece condition and hardness.
Check chucks and collects regularly ensuring that they are in
good condition. Always clean cutter shanks and collets prior to
assembly. Check that cutters are running true.
The most likely cause of cutter run-out is damaged chucks and
collets.
Maintain cutters in a sharp condition to ensure maximum stock
removal, surface finish and maximum power requirement.
Re-sharpen immediately when signs of wear are visible, since
regrinding is then a relatively quick operation requiring little stock
removal and with resulting increase in tool life.
for resharpening details). Cutter storage is of paramount
importance due to the brittle nature of the hardened cutting edges
of all cutting tools. Poor storage often causes damage such as
chipping of the cutting edges and breakage of corners, resulting
in a tool which is useless. As in all machining operations cleaniless
is essential.
The best machining results are produced by cutters operating at
the correct speed and feed to suit the material being worked.
for technical data.)
