[TowerTalk] Joining Boom Tubing

[David Robbins]

I would go to a place that offers swaging service and deals regularly with aluminum tubing, swaging service is offered by Marmon/Keystone and other tubing suppliers.  alternately use a piece of the next smaller or larger size that has a reasonably tight fit as a splice.  splicing with insert or outside piece also has advantages like: 

1. you can control the fit better, too short or poorly sized swaging can leave a sloppy fit

2. no decrease in strength like is possible from the swaging process if done incorrectly.

3. no loss of length, if you want a 24' boom and have 2x12' pieces and swage them together you lose 6" or more.

4. you can add a longer piece to increase the strength past the splice point if needed



Sep 15, 2014 10:47:32 AM, john at kk9a.com wrote:

If you are using 6061-T6, I doubt this will work.

John KK9A


To: pulsarxp at embarqmail.com, towertalk at contesting.com
Subject: Re: [TowerTalk] Joining Boom Tubing
From: Bob via TowerTalk 
Reply-to: WW4T at aol.com
Date: Mon, 15 Sep 2014 09:07:03 -0400

Quick, cheap easy and effective.....
Go to a local muffler shop...
Show them what you're trying to do...
Let them put the tubing in their 'expander'....and bump it open slightly
for the fit you need....
I would take a short sample for them to practice on before doing the pieces
you actually use....
Shouldn't cost but a few $$, and take a few minutes of their time...
GL

Bob _ww4t at aol.com_ (mailto:ww4t at aol.com)

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk