View Single Post
  #7   Report Post  
Posted to rec.crafts.metalworking
Ignoramus6705 Ignoramus6705 is offline
external usenet poster
 
Posts: 29
Default Milling a deep pocket, chip clearance

On 2010-07-29, Karl Townsend wrote:

"Ignoramus6705" wrote in message
...
On 2010-07-29, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus6705 fired this volley in
:

On production VMCs, they
blast a stream of coolant into the work area at 200 PSI, and that sure
takes care of chip removal. But what can a poor fellow like me do?

You'd be amazed at what a lamilar stream of coolant at 15-20psi will do.

You aren't constrained to a single nozzle. Use as many as you need,
primarily trailing the work (except the one _actually_ cooling the bit).

You just have to shield the work area so the coolant stays in the work
area.

If you need to suck the stuff up, consider a venturi vacuum, ported back
to the coolant tank (on the work side of the filter sock GGG!

There's a reason that CNC centers are often fully-enclosed G.


Lloyd, so how does it work, the coolant blasts away the chips or just
carries them with a flow? I guess I should try. I need to look into
the pedestal of my mill, there is supposed to be a cooant pump and
reservoir.

i


FWIW, I just use an air blast and mist coolant. Flood is nice but a total
mess if you don't have a full enclosure.

http://www.machinistblog.com/zero-fog-mister/



A mister was included with the mill. It is supposed to use vegetable
oil only. I have not yet started figuring it out.

i