[TheForge] Fw: Fwd: cutting off copper ferrules?

[David E. Smucker]

Good info Michael,

I have to try the whole milk thing.  I have never used milk as a machining 
lub.

For aluminum good old fashion lard works very well.  Fact is that it is 
still used in commercial wire and tube drawing applications  for aluminum. 
It still goes rancid -- stinks like hell and then you have dump the coolant. 
For machining just keep your lard in the refrigerator.

Dave Smucker

--------------------------------------------------
From: "Michael Horgan" <lughaid at earthlink.net>
Sent: Friday, August 14, 2009 10:06 PM
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Subject: Re: [TheForge] Fwd: cutting off copper ferrules?

> Coming in late to this, but I was on vacation,
> camping. Looks like you've got your ferrules cut
> off now, but for copper if you use whole milk as
> a cutting fluid, it  doesn't gall up on the
> cutter.  As others said a slight back rake on the
> cutting edge keeps it from grabbing.
>
> At 01:22 PM 8/12/2009, you wrote:
>>End of story: I used a hacksaw blade mounted
>>upside down in the milling attachment to saw the
>>tubing.  I used the cross-feed to draw the blade
>>slowly back as the teeth fouled with copper.  I
>>then manually cleaned up the raw ends using
>>files while spinning the ferrules in the
>>lathe.  In all cases, I used a very low
>>rotational speed.  Worked quite well. ---------- 
>>Forwarded message ---------- From: Bruce Freeman
>><freemab222 at gmail.com> Date: Tue, Jul 28, 2009
>>at 5:02 PM Subject: cutting off copper ferrules?
>>To: Blacksmithing List Sponsored by ABANA
>><theforge at mailman.qth.net> I thought this was
>>going to be a simple task, but maybe I didn't
>>reckon with copper. I need to use 1/2" (nominal,
>>actually about 5/8" OD) copper water tubing to
>>make a bunch of ferrules. Â For reasons I won't
>>go into, no other material will do, I'm stuck
>>with copper tubing. Â I tried chucking a piece
>>in the lathe and parting it off, but no go. Â
>>I'm not sure what was wrong, but I could not get
>>any sort of clean cut. Since then I've been
>>using a power hacksaw and LOTS of clean-up work
>>with files. Â I'd like to find something better.
>>I'd love to use a roller cutter, but I can't
>>tolerate the ID reduction those things give. Â
>>Otherwise, this is not precision work. Â All I'm
>>doing is making some ferrules. Any idea? Â (A
>>solution involving the lathe is not essential.)
>>-- Bruce NJ The total lack of evidence is the
>>surest sign that the conspiracy is working. -- 
>>Bruce NJ The total lack of evidence is the
>>surest sign that the conspiracy is working.
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> Michael D. Horgan , lughaid at earthlink.net
> posting from
>  A BRAZEN FORGERY
> Blacksmithing and Metalwork
> Claremont, Ca.
>
>
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