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MIG TIG STICK etc etc...

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mbima(at)hydro.mb.ca
Guest

Posted: Tue May 30, 2006 5:29 am Post subject: MIG TIG STICK etc etc...

Does anyone use gas anymore?



The nature of electric resistance welding includes a huge temperature

differential between the tip and the surrounding area (remember that the

tip is hotter than the sun and just a 1/2 inch away is cold steel at 55

degrees) which requires proper post-weld heat treatment - normalizing.

This I done using a torch or oven, getting the surrounding area to glow

a dull to cherry red, and letting it cool very slowly in still air.



So why buy an electric machine if you are going to have to heat it after

with gas anyway(unless you have a huge and hot over in your garage).

Don't get me wrong here.  If I had the money, there would be a nice

little yellow TIG welder in my garage next to the two tanks, but I don't

have that kind of money, so it's just the two tanks.

BUT PLEASE - If you are a novice welder I would recommend that ...



1. Don't take advice from a forum like this as GOSPEL.  There are too

many amatuers that have strong opinions that could be mistaken as fact -

including myself (But, if you have any training in logic, you would know

that if a liar tells you to be careful, you should still be careful).



2. Buy (or go to the library and get) a book on AIRCRAFT welding - not

"How to Build Trailers and Dune-Buggies".  Better to buy because this

will become an invaluable reference.  The EAA has several excelent books

and videos for beginners and advanced welders.  I have not yet seen a

trailer that can roll inverted or do loops unless pushed off a cliff.



3. Take an AIRCRAFT welding course or have another AIRCRAFT welder watch

your work.  I thought I was doing a fine job with my amatuer welding

(bikes, and other frame structures) until a REAL AIRCRAFT welder showed

me some very subtle changes in my technique that made big improvements

in safety and economy.  



There are as many methods and techniques in welding as there are

opinions on this here internet (again, I am including myself here), but

the goal is to have a strong and tough weld that in the unlikely event

of a highly stressful event, the plane will bend and contort around the

straight runs of tubing and the joints will be pristine.



(If I have offended you, you are way too sensitive and need to lighten

up.  This stuff is suppose to be fun - remember?)



Martin Bima

Winnipeg



"kiss you wife, hug your kids, and get building"

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nfivesl(at)yahoo.com
Guest

Posted: Tue May 30, 2006 6:31 am Post subject: MIG TIG STICK etc etc...

I do.  



Scott (Do Not Archive) Laughlin

(hack welder extraordinaire)

www.cooknwithgas.com



--- "Bima, Martin" <mbima(at)hydro.mb.ca> wrote:



 	  Quote: 	
		   Does anyone use gas anymore?


	




__________________________________________________

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frank.hinde(at)hp.com
Guest

Posted: Tue May 30, 2006 6:51 am Post subject: MIG TIG STICK etc etc...

Me too!..Gas is one of the the most useful tools in the whole

shop!...Weld, cut, heat, bend, free stuck threads.



Wonderful



Frank



Do not archive 



--

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entecrj(at)sbcglobal.net
Guest

Posted: Tue May 30, 2006 7:37 am Post subject: MIG TIG STICK etc etc...

 	  Quote: 	
		   Me too!..Gas is one of the the most useful tools in the whole

 shop!...Weld, cut, heat, bend, free stuck threads.

 

 Wonderful

 

 Frank

++++++++++++++++++++++++
	




as it is more commonly known, "the hot wrench"



Russell J.



do not archive

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