Re: [CAD_CAM_EDM_DRO] Way Oil? Mobil Vactra #2

Jon,
I appreciate the response, but you are incorrect in this instance.
When I say smoke, I MEAN smoke! 20 minutes running time and the
extractor fan (18") behind the machine is overloaded, and that end of
the shop looks like 19th century London.
It is even worse when we run 80K ductile. And yes, I have cleaned the
tramp oil out of the coolant system (daily). 4140 is not as bad,
1018/1020 or 2xx/3xx/4xx stainless doesn't smoke at all.
Though the other metals sure do create steam!
We are running .750" coolant lines on the Okuma Howa and .500 on the
VDF's so I don't think it comes to a case off too little coolant either.

Ah well, it was worth asking about, and I do thank you for the response.

Iain



Jon Elson wrote:

>
> hllrsr@... wrote:
>
> > Is anyone currently using this as a coolant? If so, how bad is it for
> > smoking?
> > At work we have been running Push Trunnions for Cat dozer blades (7.5"
> > stress relieved 4340, .250"cut) and the water based coolant we now use
> > turns the lathe into a smoke machine!
>
> But, most of that 'smoke' is really steam, a cheap and relatively harmless
> vapor.