Flux or MIG welding?

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05-24-2005, 02:57 PM
autocityman4

Flux or MIG welding?

Which has a stronger weld?

i know that flux is better for thicker steal but i cant find out which one is stronger.

thanks
Robert
05-24-2005, 03:09 PM
pro70z28

Re: Flux or MIG welding?

Quote:

Originally posted by autocityman4
Which has a stronger weld?

i know that flux is better for thicker steal but i cant find out which one is stronger.

thanks
Robert

It's the welder amperage that determines it's welding capacity, I don't care much for flux weld. Gas shielded (Mig) is a cleaner weld. Usually the larger welders are gas shielded Mig. The less expensive welders are more commonly the flux core welders (Less equipment needed). If you want a real clean weld try TIG.
05-24-2005, 04:43 PM
autocityman4

i just got a MIG/Flux its 90 amps max not a real big one but i dont feel like hooking up gas to it so im rolly just gonna use the flux wire.

ill be welding roll cage tubes(not the outer shell just cross bars)and frame components would that be sufficent enough to do that stuff
05-25-2005, 09:53 AM
SBC

Assuming the same wire type, ie mild steel, I don't believe either is stronger. But either has specific usages and limitations.
It really depends on the material being welded and conditions.

Here's a decent overview -

http://www.lincolnelectric.com/knowl...sfluxcored.asp

I believe for roll cage frames flux-core is better.
What pipe material are you using?

I would try a 90 degree butt weld and check for penetration.
You don't want all the metal on the outside. Some should penetrate to the inside of the fitting.

Be sure to observe the duty cycle for your welding machine.
They are easy to burn up.

Bert
05-25-2005, 10:55 AM
autocityman4

thanks

steal pipe 1 3/4 about 2/16ths thick
05-25-2005, 11:23 AM
orange crush

Mig welding looks nicer when you have a rust free piece of metal, flux welding will work better if the metal is rusted. Carlg
05-25-2005, 01:22 PM
autocityman4

well thats what im using then cuz i got alot of stuff that is rusted
05-25-2005, 02:02 PM
Barrett48

the weld looks clean but only if your good at it:LOL:
05-25-2005, 04:33 PM
lt1s10

Quote:

Originally posted by orange crush
Mig welding looks nicer when you have a rust free piece of metal, flux welding will work better if the metal is rusted. Carlg

never heard that one before. :HMMM:
05-25-2005, 05:07 PM
autocityman4

well barrett you better get good then anyways hes not talking about how you weld hes talking about splatter
05-25-2005, 07:12 PM
lt1s10

Quote:

Originally posted by autocityman4
well barrett you better get good then anyways hes not talking about how you weld hes talking about splatter

you cant keep the flux-core from apattering. useing argon to weld with is cleaner.
05-25-2005, 07:24 PM
autocityman4

yeah i dont really care about the spatter were not making chopper gas tanks hah ahah
05-25-2005, 07:59 PM
pat mccarthy

tig tig i have a new 250 miller i have not use no more that five times in three years it is a great welder but my 275 lincoln tig .thin or thick it dose not matter steel or alumium. a tig is a wise investment no sparks fly on stuff no big holes burned in you no hot sparks burning the ear wax out prep work is the start of a good weld buy cup wheel for a angle grinder the nice thing about a tig is you add the rod as needed and i have a thum wheel on the torch you can turn heat up or down when welding i use my tig all the time i would think about a tig
05-25-2005, 08:16 PM
autocityman4

yeah i know wut your saying and we were thinking about it but thats not really wut we need right now

they have real strong welds thats really nice
05-26-2005, 07:54 AM
orange crush

Quote:

Originally posted by lt1s10
never heard that one before. :HMMM:

Yes S10, you have to grind the metal down and make sure its real clean to get your best weld with a mig welder.Flux welding is more forgiving with a less than perfectly clean surface .
05-26-2005, 08:23 AM
vara4

Yep metal prep is allways a bigee.The air plane builders use gas migs to weld seat frames together. And tested them in crashes, the finding was that the seats would with stand a 9 g crash.
Flux is messy and smoky which makes it hard to see the weld.
Gas mig is the best in my book with the right metal preperation or clean up.

~ Vegas ~
05-26-2005, 01:57 PM
lt1s10

Quote:

Originally posted by orange crush
Yes S10, you have to grind the metal down and make sure its real clean to get your best weld with a mig welder.Flux welding is more forgiving with a less than perfectly clean surface .

i agree with the clean metal and the less than perfect clean sueface, but you said "flux welding will work better if the metal is rusted", is the part i dont know about. :eek:
05-26-2005, 02:33 PM
musicman

Why would you want to weld rust anyway. It don't matter which welder I'm using, I always hit it with the grinder first.
05-26-2005, 03:17 PM
Barrett48

of course im gonna hit it with the grinder
05-26-2005, 06:30 PM
lt1s10

Quote:

Originally posted by musicman
Why would you want to weld rust anyway. It don't matter which welder I'm using, I always hit it with the grinder first.

i wouldnt either, but orange crush said "Mig welding looks nicer when you have a rust free piece of metal, flux welding will work better if the metal is rusted". i just told him i had never heard this before amd i dont agree with it either.
:HMMM:
05-26-2005, 07:33 PM
pro70z28

I don't either. A contaminated weld is a contaminated weld I was always told. It might look nice on the surface, but the root weld will be weaker if the material is contaminated. Don't know if I was misled, ......................... I'm just sayin':) :)
05-31-2005, 07:40 AM
orange crush

Quote:

Originally posted by lt1s10
i wouldnt either, but orange crush said "Mig welding looks nicer when you have a rust free piece of metal, flux welding will work better if the metal is rusted". i just told him i had never heard this before amd i dont agree with it either.
:HMMM:

I never said you shouldn't clean the metal to the best of your ability, but there will be certain cases that you cant get the metal as clean as you might like . When I bought my lincoln wire welder I asked that very question and they gave me that answer. If you look at the instructions you will find they stess grinding and cleaning more with the mig than with flux. Thanks Carlg
05-31-2005, 10:54 AM
autocityman4

i know wut you mean
05-31-2005, 11:15 AM
lt1s10

Quote:

Originally posted by orange crush
I never said you shouldn't clean the metal to the best of your ability, but there will be certain cases that you cant get the metal as clean as you might like . When I bought my lincoln wire welder I asked that very question and they gave me that answer. If you look at the instructions you will find they stess grinding and cleaning more with the mig than with flux. Thanks Carlg

[QUOTE]Originally posted by orange crush
[B]I never said you shouldn't clean the metal to the best of your ability

orange crush ,you said this in your 6th. post., this is your quote not mine. whither you meant it or not i don't know. "MiG welding looks nicer when you have a rust free piece of metal, flux welding will work better if the metal is rusted". Craig

them i came back and said, id never heard that before and you proceeded to tell me how to prep. a piece of metal before you weld it. 2 things, you probably didn't mean it like it sounds(but you did say it) and if I don't know how to prep a piece of metal by now its way to late to change.
**) **) :cool:
05-31-2005, 11:34 AM
lt1s10

Quote:

Originally posted by autocityman4
i know wut you mean

this is your crew chief. "you butt can be replaced . you know what i mean? :LOL: :LOL:

ps, Barrett48 you looking for a ride?
05-31-2005, 12:33 PM
orange crush

S-10 I'm sorry if you took offense to my post I ment none, nor was I questioning your knowlage or ability. Carlg
05-31-2005, 12:49 PM
lt1s10

none taken, well maybe a little. :cool:
05-31-2005, 02:33 PM
autocityman4

sorry :D im haven a hell of a time with these weight jacks..

one i just took the jack bolt out cut it to size and screwed it in where it was

the other:mad: its carzy i cant do any thing to mount it without twisting it out of its original spot theres all kinds of bars in the way wut should i do crew chief twist it or cut stuff?

:D flux welder works great im not using gas till i get a bigger one
05-31-2005, 02:38 PM
lt1s10

Quote:

Originally posted by autocityman4
sorry :D im haven a hell of a time with these weight jacks..

one i just took the jack bolt out cut it to size and screwed it in where it was

the other:mad: its carzy i cant do any thing to mount it without twisting it out of its original spot theres all kinds of bars in the way wut should i do crew chief twist it or cut stuff?

:D flux welder works great im not using gas till i get a bigger one

you working on the front or rear springs?
05-31-2005, 07:19 PM
autocityman4

rear leaf
05-31-2005, 07:25 PM
lt1s10

Quote:

Originally posted by autocityman4
rear leaf

if i was doing it id be cutting and welding, want they let you weld the screw solid where its at as long as you cant turn it. :HMMM:
05-31-2005, 07:44 PM
autocityman4

they said no they want a "solid" mount straight through side to side......the hard part is getting in that small spot i cant get the medal clean enough to weld i broke three welds today
05-31-2005, 07:54 PM
lt1s10

Quote:

Originally posted by autocityman4
they said no they want a "solid" mount straight through side to side......the hard part is getting in that small spot i cant get the medal clean enough to weld i broke three welds today

there will be a spring shackel back there wont it? its got to move
05-31-2005, 08:03 PM
autocityman4

yeah but the mount where the screw jack moves the spring cant move
05-31-2005, 08:06 PM
lt1s10

Quote:

Originally posted by autocityman4
yeah but the mount where the screw jack moves the spring cant move

look like you need a bigger welder.
06-01-2005, 07:36 AM
autocityman4

not an option really