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 Post subject: Re: Mig welders
PostPosted: June 17, 2020, 9:47 pm 
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Location: New Jersey
TooBusy wrote:
Dismantlus, pipe welders lay a 6010 root pass because it has OUTSTANDING fast freeze up characteristics. The fast freeze is the main reason the weld looks so coarse.
6013, or 7018 both have a lot more flux on the rod and a MUCH MUCH slower freeze rate. As a result you get a much smoother weld profile.

Think of them like fast or slow drying paint. Slow drying paint will self level.



What you said too! I just didn't get that far into the why of it, just that it does. Cheers!

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 Post subject: Re: Mig welders
PostPosted: June 18, 2020, 10:12 am 
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Joined: August 11, 2011, 12:38 pm
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Location: Akron, NY
I will second Lincoln L-56 for bare wire and wouldn't choose anything else. One large part of my day job is weld procedure development and weld wire selection for a ASME/Military code shop that has around 100 welders. A few years ago I reevaluated our Er70S-6 filler metal and ran spools from every brand of weld wire that I could find and L-56 was hands down the best. I also get free sample spools all the time with the latest greatest that is "supposed" to be better and only one has been better for us, another Lincoln weld wire. Unfortunately that wire is not available for order to the general public.


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 Post subject: Re: Mig welders
PostPosted: June 18, 2020, 8:53 pm 
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Joined: June 21, 2010, 9:02 pm
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Location: Spencer WV
If anyone's needing a small welding cart, napaonline.com has one on special for $54. $100 off.

Equivalent on Amazon is $99. It's a little nicer than the HF basic $45 cart IMHO.

https://www.napaonline.com/en/p/FPW14440407

I think it's on sale until the end of the month, but I didn't dig to find out 'cause I already got mine.

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 Post subject: Re: Mig welders
PostPosted: May 15, 2021, 2:31 pm 
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Joined: January 31, 2008, 5:34 pm
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Location: SW Wes Consin
Does anyone else have the latest advise on the best locost MIG?


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 Post subject: Re: Mig welders
PostPosted: May 16, 2021, 7:03 am 
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The last mig I bought was the eastwood 135. It is now at about $350. I bought it thru Jegs at the time since eastwood did not have free shipping but now they do. Jegs no longer sells eastwood welders since they have their own brand.

I'd probably buy the bluearc from Jegs for $265 and free shipping.

In general, go for the most amps available at 30% duty cycle on a 110vac machine for portability. Gasless is messy and more difficult to see the puddle but generally better penetration at the same amps as gas with solid core wire. Ot for a unit that is already equipped to use a bottle and make sure the gun assembly is a tweeco. If going with gas, buy a large bottle you can cart around separately on a modified handtruck. The smaller the bottle, the more frequently it needs to be swapped/filled, usually right in the middle of a job.

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 Post subject: Re: Mig welders
PostPosted: May 17, 2021, 10:05 pm 
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vroom wrote:
Does anyone else have the latest advise on the best locost MIG?


I still stand by:
1) No machine with a rocker switch for low/high voltage and another rocker for slow/fast wire feed - it will never be setup correctly
2) No machine where the wire speed and voltage knobs have tapped settings - at least one needs to be a potentiometer

Otherwise most will get the job done.

Hobart's 140 is still what I'd get if I was on a budget. I know several people with them and they're a great value for the power and quality and it's from a big name.

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 Post subject: Re: Mig welders
PostPosted: May 18, 2021, 9:07 pm 
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Joined: March 1, 2011, 9:50 pm
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Since we are bumping, I second the Hobart 140 as probably the best basic mig. I've got 6 of them in my school shop and they can take a beating and keep pushing wire. They are all at least 7 years old and not one has failed after daily abuse at the hands of students in our humid shop which is steps from the bay. However, once you "graduate" to a larger machine there is no comparison. We have two miller 212s and a 252. They are superb. We have a larger beat up Lincoln as well which also welds rather smoothly and consistently.


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 Post subject: Re: Mig welders
PostPosted: May 18, 2021, 9:31 pm 
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Joined: January 31, 2008, 5:34 pm
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Location: SW Wes Consin
Thanks guys voice of experience always appreciated.


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 Post subject: Re: Mig welders
PostPosted: May 19, 2021, 10:42 pm 
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Joined: March 1, 2011, 9:50 pm
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vroom wrote:
Thanks guys voice of experience always appreciated.


No problem. I forgot to mention, you want to buy/rent a bottle of c25 and use solid wire. Don't weld with flux core inside.


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 Post subject: Re: Mig welders
PostPosted: May 20, 2021, 11:36 am 
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gto7419 wrote:
vroom wrote:
Thanks guys voice of experience always appreciated.


No problem. I forgot to mention, you want to buy/rent a bottle of c25 and use solid wire. Don't weld with flux core inside.

I was wondering about this.

My dad has a MIG & A flux core. What's the issue with the FC? I've read that they tend to have more spatter/mess, but give a similar quality weld.


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 Post subject: Re: Mig welders
PostPosted: May 20, 2021, 7:16 pm 
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Joined: July 20, 2009, 1:16 am
Posts: 139
When I started out knowing absolutely nothing about MIG welding I bought a (very) used 240V Cebora Apollo 215 A welder.

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I would recommend considering buying a used industrial quality welder rather than a cheap new one. Mine hasn't had a single issue, was very cheap, and takes the cheap(er) 15kg spools of wire. I've put probably 5 of the 15kg rolls through it over the years and it is still fantastic.

My cheap TIG welder I bought new, on the other hand, has gone through 3 main boards and 2 torches, which is why I upgraded to a 2nd hand Syncrowave 250DX.

Just my 2.02c, adjusted for inflation.


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 Post subject: Re: Mig welders
PostPosted: May 23, 2021, 1:33 pm 
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Joined: March 1, 2011, 9:50 pm
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JAMADOR wrote:
gto7419 wrote:

I was wondering about this.

My dad has a MIG & A flux core. What's the issue with the FC? I've read that they tend to have more spatter/mess, but give a similar quality weld.


Gas shielding provides a much cleaner process without splatter. No cleaning the weld after either. Less fumes as well. I usually use a respirator when welding. It's an absolute must when welding with flux core mig or stick. Gas doesn't do well outside though - use flux core if there's any wind.


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 Post subject: Re: Mig welders
PostPosted: May 25, 2021, 10:21 am 
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Joined: October 24, 2008, 2:13 pm
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Location: Carlsbad, California, USA
Flux core is typically a hotter process too, so more difficult with thin materials like we use in Locost 7's. They are cheaper to purchase, however.

I tried flux core, but switched to MIG very quickly. I've never regretted it.

Cheers,

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 Post subject: Re: Mig welders
PostPosted: May 25, 2021, 10:39 am 
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Joined: February 8, 2014, 10:47 pm
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Location: Cornholio OR "Where the magic happens"
On our scale, flux core welding is for farmers in the field not shop welding

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