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Re: [TowerTalk] Trying to CAD weld stainless steel to round pipe pile

To: <JTC2050@aol.com>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] Trying to CAD weld stainless steel to round pipe pile
From: "Roger (K8RI)" <tower@charter.net>
Date: Wed, 2 Feb 2005 16:19:06 -0500
List-post: <mailto:towertalk@contesting.com>




To Whom may concern or to whom feels moved by Pity,

Is it possible to CAD weld a 3/4" diameter stainless steel rod to a 16"
diameter steel pile?

It's possible, but difficult.
Cad Welding (TM) depends on measured amounts of material for a given base material.



How does one do this with the crucible?


You would basically need to create a clay mold to hold the proper amount in the proper place.

It would be far easier with a TIG or even MIG welder. Put a taper on the end of the rod and then starting at the center, keep moving around while filling the grove formed between the rod and steel pipe.

This can be tricky as you have two materials with quite different thermal characteristics. Also, SS likes to crack with large temperature differences and needs to be flooded with a cover gas such as used in MIG and TIG. This probably won't be a problem in a static environment.

Welding SS exhaust pipe pretty much requires a nitrogen atmosphere inside.

Good Luck,

Roger Halstead (K8RI & ARRL Life Member)
N833R World's oldest Debonair
www.rogerhalstead.com


We are trying to bid a job that has this requirement, but are uncertain that
it is feasible.


Thanks!!

Jim Cleary
_______________________________________________

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_______________________________________________

See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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