Re: Cutting Metals

["Luc" <ludev-at-videotron.ca> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi all

For all my cutting, drilling and taping in steel I use cutting oil (sulfur oil)
that's the best I can find I just ask a guy at the machine shop to sale me
a quart
( I pay $5.00 for that ) and I use only half of that in 15 year. that stuff
really
make a difference: when you drill use a drop of oil and it's help but if
you use
cutting oil you see two nice ribbon going from your drill and it's cut twice as
fast.

Luc Benard(Montreal)

P.S. for aluminum the best cutting oil is kerosene (Varsol work too)


Tesla list wrote:

> Original poster: "Bill Lemieux" <gomez-at-netherworld-dot-com>
>
> On that fateful day 8/14/00 3:56 PM, thus spake Tesla list:
>
> > Original poster: "Edward Wingate" <ewing7-at-rochester.rr-dot-com>
> >
> >
> >> Mark B
> >> Actually water is the best lubricant for drilling and cutting holes in
steel
> >> or aluminum. It lubricates as good as oil, it cools 100 times better,
> >> (You'll never burn up tools using water), and it does not leave an oily
> >> mess. If you're worried about rust, just clean up the shavings and hit the
> >> tools and work with a shot of WD-40 (Water Displacement). (Take it
from a 20
> >> year Navy machinist who is a friend of mine).
> >> FYI
> >>
> >> Ronn Duke
> >> (new to the list)
> >> Dukester-at-home-dot-com
> >
> > Ronn,
> >
> > This is way off topic, but as a toolmaker in the metal cutting business
> > for 30+ years and counting, I have to disagree with your statement.
> > There are many commercial cutting fluids on the market which are far
> > superior to water and will actually enhance the cutting speed while
> > protecting the tool edge and producing a better finish. Straight water
> > is a very bad choice if you value your investment in machine tools!
> >
> > Ed Wingate RATCB
>
> I consulted with one of the Colorado Mad Scientists Club, a tool and die
> maker with some twenty years or more experience, and he said the same thing.
>
> I've never heard, from any machinist's text (and I've read several) or any
> machinist or ME of using water as a cutting fluid.  It's cooling properties
> may be good, but it has no lubrication capability, and that's one of the
> primary functions of a cutting fluid.  Water and oil are occasionally used
> in an emulsion (with various nasty chemicals) in very large machine tools,
> but I've never seen water alone used by anyone who knew what they were
> doing.
>
> - Gomez
>
> .........................................................................
> "We cannot live only for ourselves. A thousand fibers connect us with our
> fellow men; and along these fibers, as sympathetic threads, our actions
> run as causes, and they come back to us as effects." -Herman Melville