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General Forestry => General Board => Topic started by: MartyParsons on January 12, 2018, 10:01:28 PM

Title: Mig Welder
Post by: MartyParsons on January 12, 2018, 10:01:28 PM
Hello,
Found this. Anyone have one like this?


 (https://forestryforum.com/gallery/albums/userpics/11823/E5B0B676-3F2D-43FE-99EE-8385BAB0B52A.jpeg?easyrotate_cache=1515812309) 



 (https://forestryforum.com/gallery/albums/userpics/11823/5FC085DE-8A6A-4C5C-984B-F816539AA5F4.jpeg?easyrotate_cache=1515812308) 

Need to get a Argon tank for the spool gun.

Thanks
Marty
Title: Re: Mig Welder
Post by: Chuck White on January 12, 2018, 10:06:04 PM
That's a step up from me Marty!

Mine uses flux core wire, yours uses Argon gas, obviously you have the better unit!    ;)
Title: Re: Mig Welder
Post by: scsmith42 on January 12, 2018, 10:16:42 PM
Nice setup Marty. 

I have something similar from Lincoln (210MP) that I like a lot.  Don't have a spool gun with it though.

Enjoy!
Title: Re: Mig Welder
Post by: hopm on January 12, 2018, 10:27:39 PM
No expert by any means, but we have one like that at our shop. I asked the guy who does our welding if he could teach me. He asked me if I could use a chalk gun. Told him yes. He said you wont need much teaching. With his guidance he made it alllllmost idiot proof. Been able to use it on many occasions and be confident in the weld. Does a really good job.
Title: Re: Mig Welder
Post by: starmac on January 12, 2018, 11:07:41 PM
I have a spool gun that is very similar to that one, but the welder I used it with has passed on and is long gone. I had two regulators so I could leave both bottles set up and ready on the cart, just plug and play between the suit case and the spool gun.
Title: Re: Mig Welder
Post by: POSTON WIDEHEAD on January 12, 2018, 11:11:21 PM
You plan on welding that hydraulic box back together?  ;D
Title: Re: Mig Welder
Post by: LeeB on January 13, 2018, 01:31:42 AM
Any major downside to using CO2 instead of Argon?
Title: Re: Mig Welder
Post by: starmac on January 13, 2018, 05:23:54 AM
Argon is to use with the spool gun on aluminum. Co2 or a mixture of CO2 and argon is what is commonly used for steel.
Title: Re: Mig Welder
Post by: goose63 on January 13, 2018, 08:08:06 AM
Argon will burn a little hotter and with a lot less splatter
Title: Re: Mig Welder
Post by: millwright on January 13, 2018, 08:50:40 AM
You will be able to easily weld aluminum with that. Use argon and preheat a bit and keep the metal shiny clean. I usually wash down aluminum with acid you can get at any truck supply, they use it for cleaning wheels and aluminum boxes
Title: Re: Mig Welder
Post by: John Mc on January 13, 2018, 09:07:31 AM
For welding steel, I use a CO2/Argon mix on my MIG unit (75% Argon/ 25% CO2). It costs a bit more than straight CO2, but it works well, and I don;t use enough of it for the cost to be a significant issue.

If you are using a spool gun, I assume you want to weld aluminum. For that, I believe you need straight Argon (but I'll defer to the guys who actually do aluminum welding. I haven;t messed with it).
Title: Re: Mig Welder
Post by: chevytaHOE5674 on January 13, 2018, 10:26:25 AM
Welded a lot of aluminum with a spool gun on a miller mig machine. Argon gas and getting the aluminum as clean as possible are crucial. A stainless steel wire brush that only gets used for aluminum and acid are your best friends. While the spool gun will stick aluminum together i much prefer TIG welding alum when possible.
Title: Re: Mig Welder
Post by: woodworker9 on January 13, 2018, 11:12:36 AM
The MM 211 is a good light to medium duty mig machine, rated for up to 3/8" steel.  Nice spool gun, too.  Those can get very pricey.

The 211 has an autoset feature that will allow you to set for ticknessh of material and weld.  The machine will make all the necessary changes.  Controlled by a board....so remember that. 

The 211 will also run on 120V or 220V.  Obviously, 120V for thinner steel applications. 

As stated, 100% Argon needed for that spool gun and aluminum.  I use C25 for steel.  You'll want tri-mix if you're welding stainless.

I have the Millermatic 200, which is the "old school" transformer power house big brother to yours.

For aluminum, as stated already, clean, clean, clean and more clean.  Also, preheat to 250° - 300° makes a huge difference.  For trailers and such, a spool gun is great.  For pretty welds, you're going to get sucked into the wonderful world of TIG.

Nice unit.  They hold their value very well.

There is a fantastic YouTube channel for anyone who wants to learn....."Welding Tips and Tricks".  Jody is a great teacher, and discusses all aspects of welding all different materials with all processes.  I have learned a lot from Jody over the past few years.  He made me a much better welder.
Title: Re: Mig Welder
Post by: John Mc on January 13, 2018, 11:40:15 AM
Woodworker9 - Is this the YouTube Series you are talking about:
Welding Tips and Tricks (https://www.youtube.com/user/weldingtipsandtricks)

I'm FAR from an expert welder. I can stick pieces together, and sometimes it even looks good. My welds are functional, but I don't do anything that might be safety related. I stink at sheet metal (because most of my welding had been on 3/16" to 3/8" steel). I really need to practice on the sheet metal a bit.

I've watched some of ChuckE2009 (https://www.youtube.com/user/ChuckE2009/)'s welding videos. He has some instructional ones, but lately has been more into projects and reviews of equipment. I've watched a few of his instructional videos, but I'm not good enough to know how good an instructor he is. (It would help if I ran right out and tried some of the stuff he talks about after watching, but things just never seem to work out that way for me.)
Title: Re: Mig Welder
Post by: coxy on January 13, 2018, 07:17:35 PM
nice set up  when welding aluminum make shur you have no draft like a fan or an open door with wind blowing it don't work so well the first time I tried it I was out side what a mess  :D never did get the hang of it its nothing like welding steel  I use argon co2  and run it at 25psi seem to do better for me   I also learnt that if your up higher than your tank up your psi
Title: Re: Mig Welder
Post by: Kbeitz on January 13, 2018, 08:32:11 PM
I stick weld aluminum. Rods don't last long...
Title: Re: Mig Welder
Post by: 4x4American on January 14, 2018, 10:35:21 PM
One of my farmer friends has that exact setup spool gun and all and last time I checked he loves it.
Title: Re: Mig Welder
Post by: Southside on January 15, 2018, 11:10:47 AM
With that spool and argon acting as a purge gas you would be able to weld stainless also and not get the burn through. 
Title: Re: Mig Welder
Post by: chevytaHOE5674 on January 15, 2018, 11:20:50 AM
I weld stainless without the spool gun with either normal C25 gas or 98/2 mix. The books all recommend a tri-mix gas. Pure argon and stainless leads to a tall cold beads with not so good penetration.
Title: Re: Mig Welder
Post by: MartyParsons on January 15, 2018, 04:27:29 PM
Hello,
   What about Helium? I know it makes you talk funny if inhaled and great to make the kids smile in balloons. What about uses for welding?
Thanks
MArty
Title: Re: Mig Welder
Post by: chevytaHOE5674 on January 15, 2018, 05:13:47 PM
Helium would be the primary gas in the traditional " Tri-mix" gas that many recommend for stainless. Tri-mix being 90%He 7.5%Ar and 2.5%CO2. IF your doing a lot of stainless welding it would be beneficial, but for occasional use you can get by with C25 or an argon/CO2 mix. Last I check Helium was very expensive so it would be costly to have sitting around for a once in a while project.
Title: Re: Mig Welder
Post by: dustyhat on January 15, 2018, 06:47:56 PM
since i live in the House boat capital of the world , and like everyone else in my area we all got really good at aluminum welding. the best tip i can give is use quality welding wire in machines and spool guns.
Title: Re: Mig Welder
Post by: Larry on January 15, 2018, 09:49:56 PM
Quote from: MartyParsons on January 15, 2018, 04:27:29 PM
Hello,
   What about Helium? I know it makes you talk funny if inhaled and great to make the kids smile in balloons. What about uses for welding?
Thanks
MArty

For a given arc length and current, arc voltage with helium is higher than with argon.  Because more heat is produced with helium than with argon, helium is more effective for welding thick materials, particularly high-conductvity metals such as copper and aluminum alloys. 

From The Procedure Handbook of Arc Welding by Lincoln Electric, an excellent textbook on welding sometimes found on ebay for $5 and free shipping (I was lucky).

My answer.  Used to get deeper penetration when welding aluminum with mig or tig.  Too expensive for my use, so if needed I would go to a real welder and let him handle it.
Title: Re: Mig Welder
Post by: Dave Shepard on January 15, 2018, 10:19:25 PM
Unless you need to extend the amperage range of your machine,  not worth the money is my understanding.
Title: Re: Mig Welder
Post by: scsmith42 on January 15, 2018, 11:03:19 PM
An argon/helium mix is a nice way to TIG weld aluminum.  Can't speak to MIG, but I like it with TIG.
Title: Re: Mig Welder
Post by: Skeans1 on January 16, 2018, 07:09:22 PM
Or 100% helium on DC Tig welding aluminum is a fun option too. Even pumping some helium in with a Y on a spool gun helps as well.
Title: Re: Mig Welder
Post by: Dave Shepard on January 16, 2018, 09:14:37 PM
DC and aluminum? That can't end well.  :D
Title: Re: Mig Welder
Post by: Skeans1 on January 16, 2018, 10:02:51 PM
It's just fine, get it good and clean with an etch then SS wire brush then the helium breaks up the oxide layer on the aluminum works great on thick stuff since all the heat goes into the part.
Title: Re: Mig Welder
Post by: starmac on January 17, 2018, 12:48:57 AM
All of the aluminum stick rod I have ever had was dc, could not be used with an ac machine at all. They may make some ac rod, but I never had any, I did try it with an ac machine once though.
Title: Re: Mig Welder
Post by: Kbeitz on January 17, 2018, 06:37:36 PM
What I use..



 (https://forestryforum.com/gallery/albums/userpics/39553/Alum_arc_rod.JPG?easyrotate_cache=1516232159)



 (https://forestryforum.com/gallery/albums/userpics/39553/Alum_rods.JPG?easyrotate_cache=1516232202)