why is FLUX bad?

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I know people say dont even waste your time with flux-wire welders.My HF 90amp flux-wire welder works great for my applications.What is wrong with flux?Is it worse to have a flux-welder or a Mig using flux wire?  Its probably the samethanks
Reply:yes they are the same..ane theres nothing wrong with a fluxcore machine..all depends on what your doing......zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:I love mine.... and I'm not bad ***************************************Lincoln AC225 stick welderLincoln HD100 WeldPak flux core wire feed welderThree of the cheapest grinders money can buy
Reply:What's bad about a flux core welder?You have to clean the slag off the weld when you're done.Fluxed cored wire costs more.Not as many alloys can be welded with flux cored wire.There is nothing wrong with flux cored welding, it has it's applications.
Reply:As everyone said it is not bad and has its applications. I did see the outcome of using flux core on a tube and painting over it. A white powder comes out of it after a while and looks awful. Probably the flux. I wouldn't recommend it for body work. But this is just my opinion of course I'm sure there is a guy with a flux core welder foaming at the mouth right now typing with smoke coming off of his fingers to tell me I'm wrong.Drivesector Hobart Handler 140Hobart Handler 180Ready Welder 2Hobart Air Force 400Airco Stinger 225Of all the things I've lost, I miss my mind the most."OZZY"
Reply:learning learning learning....pass!...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:is flux as strong as tig/mig?probably notbecause it doesnt penetrate as farI find mine penetrates far and usually burns through alot of stuff if I'm not extremely carefulWhy do you have to clean off the excess slag?I guess you have to paint over it so it wont rust?I used to suck but now, I love my machine and my skillz!
Reply:I guess the best use for it is because its portablejust use a generator  or extension cord  or  invertor or a battery backup (unlikely).I hear they are supposed to be the best for windy situations.Do they have some kind of shielding gas in the wire?  that prevents contamination?
Reply:Is there any possible way to weld aluminum with my flux-wire welder? I doubt itI have this aluminum MIG wire  but I dont know if I can use it for anythingMy flux-wire welder isnt really a true MIG right?sorry for all the questions
Reply:There is nothing intrinsically “wrong” with flux-core welding. As with any technique / method it has it’s pluses and minuses.On the plus side:Machines are usually (relatively) inexpensive;Machines are usually quite portable;Can be used in draughty places, since there’s no shield gas to be blown away;Only one consumable is required.On the minus side:Consumables are (relatively) expensive, The selection of consumables for different applications isn’t large;Machines often lack “features” (due to low cost);The welds generated often require more cosmetic attention than (e.g.) GMAW/GTAWYou need to balance the pluses and minuses in the context of the work that you intend to do with the kit. You can probably argue there are more elegant ways of doing stuff than flux-core, but if it’s right for you, and you can produce welds of an acceptable strength and quality for the applications you have in mind, why not?Two pennyworth....Mitch
Reply:Originally Posted by slow6is flux as strong as tig/mig?probably notbecause it doesnt penetrate as farI find mine penetrates far and usually burns through alot of stuff if I'm not extremely carefulWhy do you have to clean off the excess slag?I guess you have to paint over it so it wont rust?I used to suck but now, I love my machine and my skillz!
Reply:Bravo! KRS
Reply:Mig welding alum. with any mig is hard. It has taken me a long time to get used to it.  But it can be done.
Reply:Someone please correct me if im wrong but isn't it the reason they do not have aluminium electrodes for stick welders is because flux dose not provide a good enough cover?or sheilding gas as it melts? probably the same reason why you have to use pure argon or argon/helium mix for aluminium not CO2/argon.just my 2 cents
Reply:Originally Posted by matSomeone please correct me if im wrong but isn't it the reason they do not have aluminium electrodes for stick welders