[modeleng] Re: Cast Iron Coolant
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Wed, 26 Oct 2005 06:20:52 -0700 (PDT)
"...never grind Cast Iron..." Very interesting as I
used to look at castings in transit out of curiosity
and most all of them showed grinding marks where they
had been fettled at the foundry. Maybe you can get
away with grinding "green castings"? Not knowing any
better, I used some Mineral Spirits as a lubricant
when doing the final boring cuts when I built a Stuart
10_v and it turned out O.K.
Al Messer, in foggier than London middle Tennessee
--- Terry Lane <tel@xxxxxxxxxxx> wrote:
>
> Hmmmm ......... at tech we were always told never to
> grind cast iron - cold
> chisel or file only. Actually, there is a reason,
> but I'd have to go back
> thru' the old books to find it
>
>
> > Hi All
> > I have all ways been told to never to use coolant
> or cutting oil. when
> turning or milling cast iron and never have. Has
> anybody got any ideas on
> why this is.I think I was told that it would cause
> hard spots in the iron..
> You always use coolant when grinding cast iron or
> you will end up with burn
> marks.
> > Lee
> >
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