Or possibly he was grandfathered in when you had to be certified. A lot of
people in a lot of trades are not as good as you might expect compared to
some of the ones that had to pass testing in order to be allowed to work in
a licenced trade.. i am not suggesting he was a good welder or a bad one but
I have personally seen this with everything from electricians to to a
boating license.
Dave
> -----Original Message-----
> From: Ron Gibson [mailto:rgg14@cox.net]
> Sent: Tuesday, December 21, 2004 10:08 PM
> To: Nt788@aol.com; kturk@ala.net; edvs@yahoo.com; James.Tone@AES.com;
> ddahlgren@snet.net; land-speed@Autox.Team.Net
> Subject: Re: Whatever did we do before Mig welders?
>
>
> Jack
> Submerged arc is like stick with a wire. It uses a powdered
> flux to shield
> the arc from contaminates. The arc melts all the flux that it
> needs and the
> rest is vaccumed up and put back in the hopper for reuse. The melted flux
> generally falls off as the piece cools. MIG is Metal Inert Gas
> where gas is
> used for shielding. What gas depends on what metal you are welding. Wire
> feed is not always MIG.
> When I was hauling gas I asked some welders that were making changes to
> the loading terminal why they used stick on the pipes. They told me they
> couldn't take a chance on MIG. If a gust of wind comes along and blows the
> shielding gas away they may have contamination in the weld. That can't
> happen with stick.
> The Swamp Rat that blew over at Brainard in 86 had weld
> separation on the
> front end of the chassis. It was caused by the blow over but there was no
> penetration on the weld. Got pictures of it somewhere around here. A good
> weld will tear the tube, not separate. Garlits is a SEMA certified TIG
> weldor and does his own welding, but I guess anyone can make a mistake.
>
> Ron Gibson, Omaha NE
|