Spool guns?

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04-26-2006

Re: Spool guns?

Posted by Stupendous Man on April 26, 2006, 11:50 pm

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I'm doing some shopping, all the mig machines say to use a spool gun for Al
wire. I have used a mig with Al fed thru the hose before, what's the deal
here?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Posted by grassStain on April 27, 2006, 12:14 am

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> I'm doing some shopping, all the mig machines say to use a spool gun for

Al

> wire. I have used a mig with Al fed thru the hose before,

>what's the deal here?

What's the question here?

Posted by Stupendous Man on April 27, 2006, 12:44 am

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>> all the mig machines say to use a spool gun for Al
>> wire. I have used a mig with Al fed thru the hose before,
>>what's the deal here?

>
> What's the question here?
>

Why do you need a spool gun?
And while I'm back, what kind of amps do i need to MIG 3/8 mild steel ?

Posted by Ernie Leimkuhler on April 28, 2006, 7:30 pm

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> >> all the mig machines say to use a spool gun for Al
> >> wire. I have used a mig with Al fed thru the hose before,
> >>what's the deal here?

> >
> > What's the question here?
> >

>
> Why do you need a spool gun?

A standard MIG guns does not provide enough gas shielding before the
wire hits so you will always get a weld barf at the start of a weld.

Spoolguns have a built in trigger valve for the gas so there is no delay.

I have a Readywelder spoolgun and love it.

www.readywelder.com/

Mine is the Model 10250 and I run it from lots of different welding
power sources.

> And while I'm back, what kind of amps do i need to MIG 3/8 mild steel ?

Sustained, around 150-180 amps output in a wirefeed, at least.

--
Welding Instructor - South Seattle Comm. Coll.
- Divers Institute of Technology
CWI/CWE
WABO Examiner

Posted by Stupendous Man on April 29, 2006, 2:25 am

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Thanks again.
Will the Ready Welder take power from an AC-only stick machine like my old
Century? (got it for $20). I looked over the site and downloaded the manual.
It says plenty about hooking up to DC, but never says to NOT use AC.
I might be better off getting a combo TIG/SMAW machine and instead of
getting a spool gun, get the Readywelder and then i can take it on
rock-crawling trips. Lots of different solutions.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

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