With an open machine I tend to us air rf vacuum to extract chips. One
needs enough air movement to get turbulence for effective chip removal.
I tend to start pockets, etc with a drill to within .02 of full depth.
I've also drilled a pattern of holes to extract major volumes of
material from pockets. However, just getting a good starting hole with a
drill and then continuing with a mill is a smoother process. In
desperation mode blow air and catch the chips with vacuum much like a
dentist does.
Dave
On 12/1/22 12:18 AM, Gregg Eshelman via Emc-users wrote:
Flood coolant, air blowing, or vacuum. Or pre-drill a bunch of holes to almost
finished depth to remove the majority of the waste before milling.
On Wednesday, November 30, 2022 at 10:08:49 AM MST, Nicklas SB Karlsson
<n...@nksb.eu> wrote:
Milling a deep pocket spiral down work great first turn but after a
while torque is not enough and mill stop. Suspect it is because mill
have to cut old chips in addition to machining part.
Maybe it is a good idea to use drill bit a little bit smaller than
slot?
Nicklas Karlsson
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