[TheForge] cutting off copper ferrules?

[John Allen]

You can always use a cone to spread the opening back out to the proper size.

You can also use an electricians deburring tool to debur the pipe once
cut real fast

On 7/29/09, Ron Childers <munlaw2 at hcsmail.com> wrote:
> Maybe you could try cutting the burr on the end before cutting the next
> ferrule, then drift it slightly to even the id. Also, a wooden dowel that
> just fits inside the tubing seems to stabilize it for the cut on my band saw
> with a fine tooth blade. Clean it up on sand paper on a flat surface. It
> works fine on 1" brass and copper tubing on knife and tool handles.
>
> Ron C
>
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Bruce Freeman
> Sent: Wednesday, July 29, 2009 7:12 AM
> To: Blacksmithing List Sponsored by ABANA
> Subject: Re: [TheForge] cutting off copper ferrules?
>
> Lots of good ideas.  Thanks.
>
> I'd heard copper worked differently on the lathe than other metals,
> but I didn't know what to do about it.
>
> I tried a sharp parting tool and had trouble.  Strange that a slightly
> dulled one should work.  I guess it's a question of grabbing the
> copper.  I also tried a hacksaw while the tube was spinning in the
> lathe, and did not have good results.  I probably should get an
> assortment of good hacksaw blades, but this approach wasn't promising.
>
> I think I'll try them in this order:
>
> 1) Tubing cutter with a 1/2" rod inside the copper tube.  The burrs on
> the end are the killer.  I could tolerate it on one end, but not on
> the other where it has to slip on.  Clearance is too tight.  If the
> burr were tiny enough I'd just clean it up with the file, but I was
> getting substantial constriction of the tubing.   I have a drift for
> swelling the end of soft copper pipe to obviate using a union, but I
> doubt it has a purely 1/2" diameter section.  I'll check.  If I don't
> have 1/2" rod or dowel, I can easily get one.  I like the idea of
> doing this on the lathe.  I could probably use the roller assembly
> from a tubing cutter as a lathe tool...
>
> 2) Dremel cut-off wheel, with or without turning slow in the lathe.
> This seems sure-fire, but is a little more trouble.
>
> 3) Single-point tool in the lathe.  I'll have to review all the
> suggestions to get the tool right.
>
> 4) Jewel's saw.  These cut most metals beautifully, but are slow and
> it takes skill to make a straight cut.  I'm not so skilled...
>
> I'm going to pass on ideas that require major tools I dont' have, like
> the double-wheel cut-off saw, plasma cutter, etc.
>
> Thanks again,
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