Mini-Mill / Router - Cutting Fluid??

[mekanik]

Paraffin for cutting Ally
Mike

[Davek0974]

Mist or flood??

[mekanik]

better to wait for someone that's running a mill setup to advise here, the guys with the high speed spindles tend to spray but also use air to remove the chips to prevent double cutting and fusion to the cutter.
Someone will be along to advise.
Mike

[JAZZCNC]

Odour less Mist is best for Ali. I just use WD type De watering fluid I sell in my day job which is basicly paraffin type fluid.

Air is the key with Ali you want all chips blasted out of there before they get recut and overheat. Mess is just part of the cutting I'm afraid. The trick is lessening it but you'll have to accept some mess.!

[Davek0974]

I know about the mess, the Bridgeport is dripping in WD at the moment and buried in a pile of chips :) at least it won't rust.

Probably not an issue on the mini-mill but I find the WD smokes a bit when hogging ally on the bridgeport, proves that the cutter is getting hot and that a squirt of WD is not enough, but as i said, that was a 14mm cutter, balls deep, cutting a pocket.

JAZZ, what fluid do you sell (if allowed to mention) and I presume thats the course droplet type of misting system?

Agree with the chip re-cutting, easiest way to bugger a bit is to let the chips pile up in the slot or hole, always when you don't have a spare bit ;)

[JAZZCNC]

JAZZ, what fluid do you sell (if allowed to mention) and I presume thats the course droplet type of misting system?

Yes suppose could call it course drop let. There's very little fluid left so not messy and same goes for smoke. You'll also be cutting a lot faster with smaller cutters on the small machine.

The fluid is an industrial grade Maintenance spray I have made for me. It's basicly just Kerosene based fluid. I also have proper cutting fluid but much prefer this on ali. Unfortunatly being Kerosene based not something I think would be cost affective to send via courier else I'd offer.

[Davek0974]

Thanks

I have just read on a US group that a mix of Kerosene/Paraffin & ATF works, I'll have a go with anything that works ;)

There are a lot of simple mister units on the 'bay, for what they cost it's worth trying one out on the bridgeport I think.