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  #11  
Old 04-15-2010, 10:23 AM
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Yep, agreed. Like I said, for the critical stuff I'll go to a pro with the big machine.

"Proper prep" in my book is grinding v notches or angles when welding thicker stuff so you can get to the bottom and weld it up with multiple passes.

I had an arc welder before so I was already used to looking for projects to fabricate. I also picked up a used plasma cutter, which is totally new to me. So now I'm looking for stuff to practice cutting up
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Old 04-15-2010, 10:27 AM
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Originally Posted by Groucho View Post

For almost every applications the 180 machine will be a great machine. I just wouldn't use it to weld a 1/2" tow point to the face of a bumper and hope that it holds when I'm being strapped out of the muck.

Congratulations on the birthday present. It will no doubt come in handy almost everywhere. Now the problem is that you will always be looking at a project with the mindset of "now how can I weld this bugger together..."

Nathaniels point is valid. I have put 30k tow points on bumpers with a 175 amp mig machine. AFTER prepping the crap out of it, pre-heating, v'grinds, and 3 passes. Single pass "look's pretty weld" ? no.

co2 does increase penetration, but does also increase splatter and such.

Bottom line, if you are welding something that your life depends on, "I" would use either a different process (stick or high amp tig) or at least do flux core with multi pass techniques.

All those pipe rigs that you see running around with 250 amp stick machines aren't welding 1/2" pipe just with the 80amp difference. It's root plus surface/stitch passes. Remember, stick welding is essentially stationary flux core.
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Old 04-15-2010, 10:41 AM
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Certainly makes me feel better when someone does a good job of evaluating their welding. I think you're dead on with your scope of what you will be using it for.

Root passes? Treeroot?

I have become a nervous nelly when it comes to welding. Doesn't help much. I just want to be assured to the max extent possible that whatever we put out of the shop will not break when used for what its intended for. Whether it's on the Dodge truck bumper that the guy down the block is going to use to rip the root of a 100 year old redwood tree out of the ground, or a blackhawk helicopter flying recon. I want to give them all the chance that our welds will hold up.
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Old 04-15-2010, 11:06 AM
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Hmm, I'm beginning to question the wisdom of selling my stick welder, just in case I need to weld something thicker than my mig unit can handle.

Hey Nakman, can I do indian giver and hang on to the arc welder? If that breaks your heart I'll let it go but if you can live without it I think I'll hang on to it.
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Old 04-15-2010, 12:15 PM
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Originally Posted by rover67 View Post
Well everybody else stated the technical aspects. I personally just don't like welding with the flux core stuff. It's too messy and I spend too much time cleaning up spatter. I have it around for when I run out of gas and that's about it.
X2... it is just messier and mo' dirty.

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Originally Posted by Blackdiamond72 View Post
Maybe someone who knows better than me can chime in. I keep a bottle of pure CO2 for welding thicker steel because it runs hotter than with 75/25 argon mix. Also for when I'm tig'ing.

I run straight C02 and will until I start the body work on my truck, then I will invest in the argon stuff.

I do use flux cored when I'm low on gas but I made sure to get a good leather jacket and good gloves for the splatter. The best move I made when learning to weld was to get a self adjusting mask, (auto darkening I guess its called), made starting the puddle and following my lines SO much easier!
Good advice here.

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Originally Posted by Groucho View Post

I have become a nervous nelly when it comes to welding. Doesn't help much. I just want to be assured to the max extent possible that whatever we put out of the shop will not break when used for what its intended for. Whether it's on the Dodge truck bumper that the guy down the block is going to use to rip the root of a 100 year old redwood tree out of the ground, or a blackhawk helicopter flying recon. I want to give them all the chance that our welds will hold up.
Nathaniel, I am glad you think this way. It is the reason I can put so much trust into your products verses, bubba's fab shop down the road.

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Old 04-15-2010, 12:56 PM
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Help me with this comment "I do use flux cored when I'm low on gas but I made sure to get a good leather jacket and good gloves for the splatter. The best move I made when learning to weld was to get a self adjusting mask, (auto darkening I guess its called), made starting the puddle and following my lines SO much easier!"

Is mig welding w/o gas significantly smokier with more sparks and splatter than arc welding with a 6130 rod? I'm finding that hard to believe.
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Old 04-15-2010, 02:25 PM
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ive got the miller 180 with autoset also.. love it.. and i would never ever dream of using flux in it.. ive used that crap in the past and have it at work and i think its just horable it might be the welders were using but the flux dosent seem to penetrate.. expectually if your trying to have a pretty weld.. and dosent the wire cost more ? i bought the large tank and ive gone though like 2 spoools of wire and still have alot of gas.. i think.. its been awhile since ive used my welder.. at ,liest i can stare at it in my liveing room every day and wish i was builid a project. like my trailer or sas kit
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Old 04-15-2010, 02:30 PM
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Quote:
Originally Posted by Air Randy View Post
Hmm, I'm beginning to question the wisdom of selling my stick welder, just in case I need to weld something thicker than my mig unit can handle.

Hey Nakman, can I do indian giver and hang on to the arc welder? If that breaks your heart I'll let it go but if you can live without it I think I'll hang on to it.
Yeah, you need it more than me.. you suck tho
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Old 04-15-2010, 02:47 PM
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Yeah, you need it more than me.. you suck tho
I'm sensing that there should be a restocking fee evaluated in barley pop.
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  #20  
Old 04-15-2010, 03:40 PM
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Quote:
Originally Posted by Air Randy View Post
Help me with this comment "I do use flux cored when I'm low on gas but I made sure to get a good leather jacket and good gloves for the splatter. The best move I made when learning to weld was to get a self adjusting mask, (auto darkening I guess its called), made starting the puddle and following my lines SO much easier!"

Is mig welding w/o gas significantly smokier with more sparks and splatter than arc welding with a 6130 rod? I'm finding that hard to believe.
nuttin is worse than 6130, except maybe hardfacing... They both produce heavy particilate smoke. You have better puddle visibility on flux core wire-feed than you do stick. At least I think so.
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