[TheForge] cast iron

Fri Aug 9 16:17:01 2002

Dave:

Not sure exactly what conditions you ended up with after trying to cut it
with a torch, but its possible that you hardened the material in the area of
the torch cut such that it will be impossible to cut with a blade. All types
of Cast Iron have much more carbon than steel. If you heat an area and then
let it cool quickly, as would be the case when the heat is drawn into the
adjacent area mass as soon as you remove the heat source, you will end up
with something harder than the sawblade itself. Abrasive wheel or torch may
be the only answers now.

Also, "cast iron" is a whole family tree of materials. Some cut easily with
a saw blade, others are impossible. It depends on the type/composition, heat
treat condition and casting practice. Any idea what type of cast iron they
used back in the ancient mists?

Dan

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Gladish Family
> Sent: Friday, August 09, 2002 1:40 AM
> To: Theforge@Mailman. Qth. Net
> Subject: [TheForge] cast iron
>
>
> Anybody got the secret to cutting cast iron?
> Somebody back in the ancient mists of time added a dorky outer
> pulley to my
> Little Giant, causing it to wobble and run too slow. I tried to cut it off
> of there with the torch and it looked like it was going to make a
> mess, and
> the sawzall isn't working either...
> Andy G
>
>  No matter what happens, somebody will find a
> way to take it too seriously.
>                         Dave Barry
>
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