PDA

View Full Version : Cutting 5/32 aluminum tube(?)



Smokedaddy
01-16-2009, 11:57 PM
What would be the easiest way to cleanly cut 5/32" O.D. aluminum .014 hollow tubing into 2.25" pieces about 250 of them?

Thanks in advance,
-SD:

doctor demo
01-17-2009, 12:09 AM
Some of the big box stores have ''mini'' tubing cutters in the plumbing or tool areas. I am not 100% certian it will go small enough , but You might be able to modify to work.

Steve

38_Cal
01-17-2009, 12:27 AM
Find an archery shop or someone who makes their own arrows and borrow their arrow cutter/mini chop saw.

David
Montezuma, IA

Walter
01-17-2009, 01:28 AM
I cut small tube like this allot. Chuck lengths of the tube in the lathe, 3-4 feet hanging out of the chuck, have a tool that we built, it's basically a pipe cutter setup on a set of hand shear handles with a stop on the end. very much like using scissors. once the depth/length is set it's like snipping string.

Left hand steadies the overhanging tube, right hand using the tool. can cut 500+ pieces in an hours time with no effort. lathe spinning about 150 rpm. makes a clean cut, does shrink the hole a small bit on the ends, but we press the tubes into an item, then expand the ends to lock it in, so that's not an issue for us.

Smokedaddy
01-17-2009, 01:33 AM
Walter,

Have a picture of it available that you can post or send me? Since you mentioned it, how do you expand the end? Have a picture of it as well? I was thinking about expanding the ends as well.

David,

Another good idea!

Thanks,
-SD:

Walter
01-17-2009, 05:10 AM
Smoke,

I'll snag a picture of it today and post when I get back from the shop.

We use the tube in these http://www.queencutlery.com/images/cocobolo/3LCOBO.jpg (note the end of the handle) As to the actual processes used for expanding and finishing I can't say. It's not something I do, I'm just a tool and die guy, not one of the knife makers =)

Your Old Dog
01-17-2009, 05:59 AM
Make a Dremel Chop Saw and put a stop on it. I think Marv Klotz made such a setup and posted it here.

Walter
01-17-2009, 11:15 AM
Smoke, here's the tool I mentioned earlier. It really does work like a charm, worth the time if your gonna be doing a lot of the little buggers.

http://pic1.picturetrail.com:80/VOL1167/4323122/21387100/351531742.jpg

http://pic1.picturetrail.com:80/VOL1167/4323122/21387100/351531721.jpg

http://pic1.picturetrail.com:80/VOL1167/4323122/21387100/351531712.jpg

http://pic1.picturetrail.com:80/VOL1167/4323122/21387100/351531734.jpg

Smokedaddy
01-17-2009, 11:26 AM
Walter,

Thanks for taking the time to take and post the pictures. Interesting idea.

-SD:

gellfex
01-17-2009, 11:52 AM
2" Cut-Off Saw, $28

http://www.harborfreight.com/cpi/photos/42300-42399/42307.gif
http://www.harborfreight.com/cpi/photos/42800-42899/42805.gif
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=42307

Smokedaddy
01-17-2009, 11:34 PM
Walter,

How do you expand the ends of the tube? Have a picture?

-SD:

airsmith282
01-18-2009, 12:17 AM
if you want a clean cut on each end and you want it percise then id use a parting tool and keep it short just enght to make it thew and go past the length by about 2 or 3 thou and then face it to size after and you will have your 250 perfect shaped and cut to lenght peices ,, thats the way id do it ,,