Welder .

[modelengineer]

This may be good advice to go with the arc welder but the comment about the welds being stronger is simply not true.

Mig is the weakest processes of welding out of the whole bunch. Here a quick list of whats the best to the worst:

1) Submerged Arc
2) TIG
3) Stick/Arc
4) Flux cored
5) Mig

There isn't alot of strength differance between MIG to Stick(50-70MPa depending what electrodes been used) but TIG and Submerged Arc are the best.

Taken from a boilermaker on another forum. I have seen this information MANY times, and have no reason to doubt it.

If you decide to go with a stick welder I would make sure to get an ac/dc machine

I thought AC/DC machines were quite expensive. You don't really need one but it would probably be a good feature to have.

 

[Explicit Error]

If you can't find a good used machine on craigslist in your area and with your budget and proposed use in mind, I would say go with the "mig"

But all im doing is welding frames so if the MIG would do the job then i want to go with it cause i'd rather buy something brand new with no problems then something used that i dont know how the previous owner treated it .


And i the welder im looking at is fluxcored not MIG .

EDIT : I do have access to 220v . And i might be picking up a 220 amp lincoln arc welder today for 120 . Would that be the way to go ?

 

[Kenny_McCormic]

EDIT : I do have access to 220v . And i might be picking up a 220 amp lincoln arc welder today for 120 . Would that be the way to go ?

BEST OPTION^

 

[rmkrider1]

Now you're talking! That would be the best option.

 

[rmkrider1]

Quote:
Mig is the weakest processes of welding out of the whole bunch. Here a quick list of whats the best to the worst:

1) Submerged Arc
2) TIG
3) Stick/Arc
4) Flux cored
5) Mig

There isn't alot of strength differance between MIG to Stick(50-70MPa depending what electrodes been used) but TIG and Submerged Arc are the best.

Sounds like an uneducated person talking. I'm curious as to why this list doesn't include all welding processes? Ask your boilermaker buddy if a smaw weld done with 6010 is "stronger" then a mig weld done with c25 gas and ER70S-2 wire. Assuming that all weld preps are equal and welds or laid down flawlessly. Please post his response here.

There are way to many variables to be able to say that one is stronger then the other.

 

[modelengineer]

You can ask him yourself. He's on http://www.edge.au.com/forum1 , and his username is "matt(boily)"

I'm just passing on information, believe what you want.

if a smaw weld done with 6010 is "stronger" then a mig weld done with c25 gas and ER70S-2 wire

Why not compare 7018? They are both 70,000 psi tensile strength... I don't know anything about MIG welding, so I don't know what C25 gas is. In fact, I don't know much about welding in general. I'm just telling you what I've read.

 

[rmkrider1]

I didn't compare 7018 because the comment was that a stick weld is stronger then a mig weld period

I know there are high tensile strength smaw rods out there such as 10018 that would in fact be stronger then a mig weld done with er70. There are also higher tensile strength mig wires out there. Just saying that all things being equal a stick weld is not stronger then a mig weld. Same thing with tig being near the top of the list....If you're welding carbon steel and using er70s filler wire it's not going to be any "stronger" then any other process.

I apologize if I seem argumentative I'm not trying to be. Just thought I would let the OP and anybody else reading this thread that the information wasn't entirely true.

 

[Explicit Error]

Im sorry for asking so much but would this welder work with builind frames cause its on sale for 80$.http://www.harborfreight.com/cpi/cta...emnumber=98870

 

[rmkrider1]

Link doesn't work

 

[ZnsaneRyder]

The fluxcored wire welder will work GREAT for your frames. HIGHLY RECOMMENDED!

It's easier to burn through your metal with stick welding, due to the higher amperage required to melt the rod. With wirefeed, you can use less amps, and adjust the speed the wire feeds from the tip. Your welds will look much better and be more precise with the wirefeed.

Also, sticking is a problem with rods, and if you stick the wire, it's MUCH easier to break free than a welding rod.

I've used both kinds, wirefeed, and stick welding. I prefer the wire welding every time. The stick welding is better for larger jobs. If you have little welding experience, the wirefeed is MUCH easier to learn and use by far.

I'm planning on getting one of those 90A HF welders myself as soon as I get the $$$.

 

[Kenny_McCormic]

Im sorry for asking so much but would this welder work with builind frames cause its on sale for 80$.http://www.harborfreight.com/cpi/cta...emnumber=98870

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=55060

Those things suck because you need 220 to run it at full power, for a little more you could buy a used 220 amp stick welder that has a much much better duty cycle. Only HF welder I would ever buy is the fluxcore wire welder, and thats if its on sale and I could only get 110volts for power.

 

[modelengineer]

I'm so glad we have 240v power everywhere in Australia. 3 phase power here is 415v which you need to run massive welders like 400 amp stick/arc welders.

 

[Explicit Error]

The fluxcored wire welder will work GREAT for your frames. HIGHLY RECOMMENDED!

It's easier to burn through your metal with stick welding, due to the higher amperage required to melt the rod. With wirefeed, you can use less amps, and adjust the speed the wire feeds from the tip. Your welds will look much better and be more precise with the wirefeed.

Also, sticking is a problem with rods, and if you stick the wire, it's MUCH easier to break free than a welding rod.

I've used both kinds, wirefeed, and stick welding. I prefer the wire welding every time. The stick welding is better for larger jobs. If you have little welding experience, the wirefeed is MUCH easier to learn and use by far.

I'm planning on getting one of those 90A HF welders myself as soon as I get the $$$.

Thank you . Right now they are on sale at HF for i think 90 .

 

[Kenny_McCormic]

I'm so glad we have 240v power everywhere in Australia. 3 phase power here is 415v which you need to run massive welders like 400 amp stick/arc welders.

50amp 220? The vast majority of people in the US have 220 running to their house(unless you REALLY live in the sticks) and a few outlets(electric stoves and dryers) they just dont realize it.

 

[modelengineer]

There is no 110v power supply in Australia. Everything is 240v or 415v, and 50Hz.

 

[r_chez_08]

uk is 230-240v. some of our tools (a drill, and a jigsaw) run from a 110v supply tho.

 

[cheap_a__kart]

I bought a dual flux/mig welder and it works wonders...it is 220 and it is from harbor freight got it for 140 just have to look for the sales...but remember auto darkening is your best bet for helmet and good gloves you don't want 3rd degree burns !! good luck