Hi all,
I have some minor welding needing doing on my project car and am getting into minibike projects. I'm getting fed up with relying on friends to do some welding for reasons of logistics, but also the fact they don;t always do things the way I'd like.
With that in mind, I've decided to take the plunge and learn to weld myself with a basic flux core welder (MIG) as they can run 110v and don't need a separate gas bottle. I'm going to practice considerably on scrap metal before I work on my car but would appreciate some advice on here on 2 I am looking at.
Harbor Freight Easy-Flux 125 Amp
https://www.harborfreight.com/easy-flux-125-amp-welder-.html
ARCCaptain 130A Flux core
https://www.amazon.com/dp/B0B1TGB5NW/?tag=atomicindus08-20
I have looked at individual reviews for both, that seem mainly positive.
I found 1 comparison review on youtube and the guy basically couldn't pick one between the 2.
HF Pros:
Cheaper than the ARC Captain (when on sale voucher)
Has a cold feed button so you can feed the wire without holding the trigger
More compact than the ARC Captain
Has settings guide on inside of lid
HF Cons
125 amp (vs 130 amp for ARC captain)
Price does not include flux wire
ARCCaptain pros:
Removeable earth wires
Can run stick and TIG welds (but I'm not this would need additional gas?
Comes with flux wire (but according to reviews it may not be the best wire)
Has more adjustability
ARCCaptain Cons
No settings guide on inside of lid
3 in 1 may mean it doesn't do any one type (eg mig) as good.
Buying online, so can;t see it in person/returns are a pain.
I don't want to spend more than $200 when starting, and I do not have space for gas bottles nor access to 220V. So if anyone here has had either, which would you recommend?
Welshie,
First off, a flux core welder is NOT a MIG welder.
MIG (technically GMAW for Gas-shielded Metal Arc Welding) uses a solid wire electrode and a cylinder of shielding gas to shield and protect the arc and the molten metal from the air until the metal solidifies.
Flux core welding (technically FCAW for Flux Core Arc Welding) uses a tubular wire electrode that is filled with flux powder. Pretty much like a stick electrode (which is technically SMAW for Shielded Metal Arc Welding) turned inside out. FCAW can be self shielded (FCAW-S where the flux provides the shielding of the molten weld metal) or it can also use a shielding gas (FCAW-G where the shielding gas also provides shielding as well as the flux providing some shielding and/or some arc and/or weld puddle effects).
There is a variant of GMAW call MCAW (Metal Cored Arc Welding) that uses shielding gas but where the wire electrode is a tubular wire filled with (no surprise) a metal powder blend.
Small home-use machines will usually be of the GMAW or FCAW-S types. Bigger 'industrial' type machines are typically needed to run MCAW or FCAW-G wires.
Enough quick background, on to your specific questions (both asked and not specifically asked) ...
IMNSHO, skip getting an FCAW-only machine.
FCAW is certainly a 'good' welding process for some applications. But because of some arc physics, FCAW runs 'hotter' compared to similarly sized solid wire GMAW. Which is not so good for welding on thin sheet metal (like on a car). It is also a little bit of a dirtier welding process than GMAW, with typically more weld spatter and slag residue to clean up after welding before you can paint or otherwise finish the pieces.
GMAW with C25 shielding gas (a gas blend of 25% CO2 and 75 % argon, one of if not THE typical short-circuit transfer mode GMAW shielding gas mixes) and solid wire is the typical go-to for GMAW aka 'MIG' on thin steel sheet metal.
If you buy at least a semi decent MIG welder, those will usually let you weld using GMAW (solid wire electrode with shielding gas) or FCAW-S (fluxcore wire electrode with no shielding gas) just by switching the wire electrode you use and then also switching the (+) and (-) wiring to the wire electrode (on the 'gun' or torch) and the 'ground' clamp.
You can get small machines that can do GMAW and FCAW while running on 120V power. Like the mentioned 140-class machines. Lincoln, Miller, Hobart, ESAB are the four big brand names, there are other brands that are good/decent as well. And there are also not-so-good brands and machines.
There are also machines that can run on either 120V or 240V input power. If you got one of those type machines, you could run it on your existing 120V outlet and when (notice I said "when" and not 'if') you outgrow the power output limitations from using 120V power, you can then figure out a way (have a 240V outlet put in the garage, run a 240V extension cord from an electric dryer outlet to connect to the welder, etc) to run the machine on 240V input power for more available output power.
Your budget of $200 is pretty limiting.
You still NEED the wire electrode (btw, FCAW wire spools are MUCH more expensive than solid wire electrode spools, just talking the common mild steel electrode variants like Lincoln NR211-MP FCAW wire and Lincoln L-56 GMAW solid wire), and welding gloves, and a welding helmet.
Even the HF web page for the FCAW machine 'suggests' getting a spool of wire, a welding helmet, and some gloves. Which comes out at ~$400, all right from HF.
You will want some angle grinder(s) with wire wheels and flap disks and grinding wheels and maybe some cut-off disks, instead of cutting things with a hack saw and trying to clean them up with a hand powered wire brush. Even a low-end HF angle grinder beats trying to clean up metal or welds by hand (10k+ rpm versus hand power ). A welding jacket to protect yourself. Some sort of surface to weld on instead of crouching on the ground all the time (BTDT) is very nice to have (HF portable welding table is actually pretty good as a light weight light-duty welding table, on sale it's usually less than $100).
I would not buy either of your mentioned FCAW-only machines. Mostly because they are FCAW-only.
Get a used or new Lincoln 140 or similar. Then you have the choice of GMAW (solid wire and shielding gas) or FCAW (flux core wire and no shielding gas). And you will not be fighting the machine limitations and/or quirks as much as you are trying to learn and weld.
Even the HF Titanium MIG 140 would be better than the FCAW-only machine(s). Try to get it 'on sale' or with a coupon and the price should come down near $400, give or take. Check https://www.hfqpdb.com/ in case you didn't know about that site, it lists all current/recent/recently-expired HF coupons. Or do the HF promo 'club' or card and get 10-20% off that way.
Amazing deals on this Mig 140 Professional Welder at Harbor Freight. Quality tools & low prices.
Welshie,
First off, a flux core welder is NOT a MIG welder.
Thank you for replying. Apologies, I was being generic, from my rookie standpoint:
MIG = Using a gun only
TIG = Using a gun and having a separate welding rod
Stick = Using a welding rod only.
A generalisation but that is what I meant.
MIG (technically GMAW for Gas-shielded Metal Arc Welding) uses a solid wire electrode and a cylinder of shielding gas to shield and protect the arc and the molten metal from the air until the metal solidifies.
Flux core welding (technically FCAW for Flux Core Arc Welding) uses a tubular wire electrode that is filled with flux powder. Pretty much like a stick electrode (which is technically SMAW for Shielded Metal Arc Welding) turned inside out. FCAW can be self shielded (FCAW-S where the flux provides the shielding of the molten weld metal) or it can also use a shielding gas (FCAW-G where the shielding gas also provides shielding as well as the flux providing some shielding and/or some arc and/or weld puddle effects).
There is a variant of GMAW call MCAW (Metal Cored Arc Welding) that uses shielding gas but where the wire electrode is a tubular wire filled with (no surprise) a metal powder blend.
Small home-use machines will usually be of the GMAW or FCAW-S types. Bigger 'industrial' type machines are typically needed to run MCAW or FCAW-G wires.
Enough quick background, on to your specific questions (both asked and not specifically asked) ...
Thank you, appreciate the info.
IMNSHO, skip getting an FCAW-only machine.
FCAW is certainly a 'good' welding process for some applications. But because of some arc physics, FCAW runs 'hotter' compared to similarly sized solid wire GMAW. Which is not so good for welding on thin sheet metal (like on a car). It is also a little bit of a dirtier welding process than GMAW, with typically more weld spatter and slag residue to clean up after welding before you can paint or otherwise finish the pieces.
GMAW with C25 shielding gas (a gas blend of 25% CO2 and 75 % argon, one of if not THE typical short-circuit transfer mode GMAW shielding gas mixes) and solid wire is the typical go-to for GMAW aka 'MIG' on thin steel sheet metal.
If you buy at least a semi decent MIG welder, those will usually let you weld using GMAW (solid wire electrode with shielding gas) or FCAW-S (fluxcore wire electrode with no shielding gas) just by switching the wire electrode you use and then also switching the (+) and (-) wiring to the wire electrode (on the 'gun' or torch) and the 'ground' clamp.
You can get small machines that can do GMAW and FCAW while running on 120V power. Like the mentioned 140-class machines. Lincoln, Miller, Hobart, ESAB are the four big brand names, there are other brands that are good/decent as well. And there are also not-so-good brands and machines.
There are also machines that can run on either 120V or 240V input power. If you got one of those type machines, you could run it on your existing 120V outlet and when (notice I said "when" and not 'if') you outgrow the power output limitations from using 120V power, you can then figure out a way (have a 240V outlet put in the garage, run a 240V extension cord from an electric dryer outlet to connect to the welder, etc) to run the machine on 240V input power for more available output power.
Your budget of $200 is pretty limiting.
You still NEED the wire electrode (btw, FCAW wire spools are MUCH more expensive than solid wire electrode spools, just talking the common mild steel electrode variants like Lincoln NR211-MP FCAW wire and Lincoln L-56 GMAW solid wire), and welding gloves, and a welding helmet.
Even the HF web page for the FCAW machine 'suggests' getting a spool of wire, a welding helmet, and some gloves. Which comes out at ~$400, all right from HF.
Thank you. If I wasn't clear, my budget was for the welder alone. I'm well aware that there are additional costs. The issue there is, yes, you are looking at $400 when you get everything but then you have the same addons, plus more for a MIG welder. If I buy the Titanium 140 for $450, another $150 for gloves, decent mask, wire. The $200-$300 for a C25 bottle. I'm close to $ and I cannot justify that on a welder I'm going to use a couple of times a year. At that cost, I will put up with the inconvenience of asking my friends to help.
I get what you are saying, but it's like when I was looking at buying a Mustang. People said if you get the Bullitt, you might as well stretch and get the Mach 1. If you get the Mach 1 you might as well stretch and get the GT350, if you stretch and get the GT350, you might as well get a Porsche Cayman. If you stretch and get the Cayman, you might as well buy a GT500...lol.
You will want some angle grinder(s) with wire wheels and flap disks and grinding wheels and maybe some cut-off disks, instead of cutting things with a hack saw and trying to clean them up with a hand powered wire brush. Even a low-end HF angle grinder beats trying to clean up metal or welds by hand (10k+ rpm versus hand power ). A welding jacket to protect yourself. Some sort of surface to weld on instead of crouching on the ground all the time (BTDT) is very nice to have (HF portable welding table is actually pretty good as a light weight light-duty welding table, on sale it's usually less than $100).
I already have a grinder and discs etc, so NP there.
With paint brushes/pens? Not even remotely similar.
When he's got the actual welder, the focus should first be on dialing in settings and being able to "read" the weld (too hot, too cold, too fast, too slow, not enough gas, good penetration, bad penetration, etc.), keeping consistent stand off distance, proper angle, and movement speed, practicing different joint types, and orientations. THEN maybe start thinking about fancy patterns.
Thank you.