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Old 03-06-2007, 08:12 AM   #16
gsweave
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Quote:
Originally Posted by KTM640Dakar
Do you have a question about welding? How to weld a material or which welding process to use? MIG, TIG, stick, oxyfuel?

I will tell you up front that I am a Welding Engineer for The Lincoln Electric Company so if I sound bias to my company's products, well.. I am.

So tell us about your welding project?


Glad your here.

Should we retire this old Carbon arc machine? She cuts 2" Niconel like a bitch.












Hey all kidding around aside

It may be ugly, but this portable, 480V machine can really burn some nice stainless welds.



One of our lincoln sub-arcs








Thanks in advance for taking on this task in the "Garage"

I am thankful that it is here......
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gsweave screwed with this post 03-06-2007 at 08:42 AM
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Old 03-06-2007, 08:34 AM   #17
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Here is a question we see alot.


Home shop? Greatest overall versatility. And I have never laid a bead in my life. Mig or Stick? And yes shop is wired for 240.
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Old 03-06-2007, 12:16 PM   #18
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Quote:
Originally Posted by tpunzy
I have tried it with no good coming of it

What the heck is the trick to torch welding (oxy/fuel) aluminum?????? I have seen it done with good results(by an oldtimer), but I (for what ever reason) just don't get it????????????
+1. I know it's possible, but I haven't actually tried it...
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Old 03-06-2007, 01:09 PM   #19
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solder

Quote:
Originally Posted by porterdog
+1. I know it's possible, but I haven't actually tried it...
Are you sure that it is a true "weld" not a solder that looks like Aluminum
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Old 03-06-2007, 01:15 PM   #20
98rxcmi
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stick with TIG "add on"

I'm not sure but didn't they make a "Kit" that would convert your stick lincon welder to a TIG ??? or was that a factory made combo unit/

If I had to choose MIG vs TIG/Stick unit the TIG/Stick woudld be my choice. MIG is good if you do a lot of welding or tacking but
for a home shop it would be my second welder not my first.
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Old 03-06-2007, 01:43 PM   #21
Sparkdaddy
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I have a question for you. I have a Chicago Electric MIG100 and the spool is broken on it. Where do I get parts for it? Or do I toss it and get a new one?
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Old 03-06-2007, 06:12 PM   #22
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Quote:
Originally Posted by 98rxcmi
Are you sure that it is a true "weld" not a solder that looks like Aluminum
Sure; courtesy Google and TinyURL:

http://tinyurl.com/2yruj9


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Old 03-06-2007, 07:43 PM   #23
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Quote:
Originally Posted by porterdog
Sure; courtesy Google and TinyURL:

http://tinyurl.com/2yruj9


Cool link
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Old 03-07-2007, 12:46 PM   #24
Fubars
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Stick Welding Aluminum.....

I was told you have to preheat your work. That didn't help when I tried it. Only thing that happens is the rod just disinegrates, and I get a pile of slag on the work. What am I doing wrong?
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Old 03-07-2007, 12:52 PM   #25
sagot
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Heat treatment

Can you tell me what Heat Treatment procedure to do after welding 6061-T6 Aluminum. Does the filler rod come into effect.
Not trying to do this at home -just curious.
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Old 03-07-2007, 01:48 PM   #26
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Quote:
Originally Posted by SPARKDADDY
I have a question for you. I have a Chicago Electric MIG100 and the spool is broken on it. Where do I get parts for it? Or do I toss it and get a new one?
Anyone?
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Old 03-07-2007, 05:56 PM   #27
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Quote:
Originally Posted by Poolside


That's pretty good. You are the first person, Welding Engineer or otherwise, that went right to arc length.

Yea I get that. That the physics of the plasma in any particular gas, in this case air, set the arc voltage over the arc length.

I was just thinking that you might have played around and measured that voltage with a meter, or looked at it on a scope.

I realize I am asking more of a mechanical question. More like "How far back is the electrode from the face of the 'swirl cup' nozzle?" Or terms to that effect.

So, say select one of your more popular Lincoln hand held plasma torches. What is that dimension?

- Jim
You are probably around 20 volts with say a 1/8 inch stickout. Most electrodes are recessed 1/16 inch inside of the nozzle.
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Old 03-07-2007, 06:04 PM   #28
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Quote:
Originally Posted by KTM640Dakar
You are probably around 20 volts with say a 1/8 inch stickout. Most electrodes are recessed 1/16 inch inside of the nozzle.
Thank you K6D.

Does Lincoln offer a Plasma Arc Welder(s) in their lineup? Maybe I'm looking in the wrong place on the site.

- Jim

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Old 03-07-2007, 06:05 PM   #29
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[quote=gsweave]Glad your here.

Should we retire this old Carbon arc machine? She cuts 2" Niconel like a bitch.












Hey all kidding around aside

It may be ugly, but this portable, 480V machine can really burn some nice stainless welds.


That old SAM 400 is one of the smoothest arc welders of all of the stick welders that we made. In fact most modern inverter based welding power supplies are designed to copy the output of that machine. That machine is a true generator welder. That is why it is so heavy and has a ton of copper windings in it. One end of the machine has an electric motor which in turn spins an electric generator on the other end that make the welding power. If you replace the brushes on the gen set of that welder it could last forever. The name plate paint usually wears off of them before the machine wears out.

Most of your WWII ships were built using that machine.
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Old 03-07-2007, 06:12 PM   #30
KTM640Dakar OP
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Quote:
Originally Posted by 98rxcmi
I'm not sure but didn't they make a "Kit" that would convert your stick lincon welder to a TIG ??? or was that a factory made combo unit/

If I had to choose MIG vs TIG/Stick unit the TIG/Stick woudld be my choice. MIG is good if you do a lot of welding or tacking but
for a home shop it would be my second welder not my first.
Yes there is a guy named Wyatt Swain who made a kit to convert a Lincoln AC/DC 225/125 stick welder so you could TIG weld.

Here is what most home shops buy these days. This is one of the most popular TIG/Stick welders made today. It is called a Precision TIG 225.

http://www.lincolnelectric.com/produ...on-tig-225.asp
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