coolant placing

coolant placing

This topic has 6 replies, 5 voices, and was last updated 17 August 2013 at 17:51 by Michael Gilligan.

Viewing 7 posts - 1 through 7 (of 7 total)

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17 August 2013 at 16:36 #127128
mick70
Participant
@mick70
where is best place to put coolant when drilling on lathe?

is it better running over workpiece or end where im drilling so it cools bit as i draw it out to clear swarf?

cheers
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17 August 2013 at 16:36 #6829
mick70
Participant
@mick70
17 August 2013 at 16:59 #127131
JasonB
Moderator
@jasonb
Have it playing on the point of entry that way some will find its way down the hole and cool the cutting tip and flush some muck out, not much point on playing it on the outside if you were say drilling a 1/4" hole in a bit of 3" bar
17 August 2013 at 17:09 #127132
Clive Hartland
Participant
@clivehartland94829
Think of tooling that has holes down the center to cool the cutting edge and then do as Jason suggests, play it at the cutting point.

Clive
17 August 2013 at 17:23 #127133
mick70
Participant
@mick70
thought that was prob right way but thought it best to check.

cheers
17 August 2013 at 17:26 #127135
jason udall
Participant
@jasonudall57142
On a manual. .cool the drill sharp end. .thus only works when drill withdrawn. .for long holes more than 3 * diameter you need to wood peck hole
..coolant set to wash face of part and thus hole..drill gets rinsed cooled and hole gets flooded ..if you try to flood down the hole you will keep the swarf trapped against the spiral action of the flutes..

For deep hole drilling through drill coolant is used..washing swarf out and cooling in one. ..a bit out of model users league
17 August 2013 at 17:51 #127137
Michael Gilligan
Participant
@michaelgilligan61133
Stretching the topic just a little:

When CNC boring thin-walled Aluminium tubes to size; a previous employer expended a great deal of effort optimising the flow-rate of the coolant … effectively preventing chatter by damping the vibrations.

It worked beautifully.

MichaelG.
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