Question about Firepower 120 Amp MIG/FLUX Cored Welding System

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How would i sub-arc welding machine to weld structural iron

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Sub arc welding is a diffrent process than sheilded metal arc welding
sub arc takes alot of amps and is made for alot of weld in long runs usually set up on a track and is automated

Posted on Jul 09, 2010

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Posted on Jan 02, 2017

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I need tips for my stud welding gun. How can I replace them? Thanks John


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Jan 30, 2017 | Welding Tools

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What settings do i use to arc weld.


Not sure what machine you have, but it should be DC straight (electrode negative or DCEN) and DC reverse (electrode positive or DCEP). The polarities have different characteristics. For example, if you're planning to TIG weld, you would either use DCEN or AC (if welding aluminum). For the general stick welding process, DCEP tends to give you a deeper weld. The welding rod you buy will have recommended machine polarity and amperage range settings, you should use the recommended polarity for whichever rod you're using because different rods are designed to weld under different circumstances. But, generally speaking, most welding rods for steel will work on DCEP without much trouble.

May 17, 2016 | ARC Welding Tools

1 Answer

WHAT WELD CAN USE FOR A CHEVY 350 WHERE STARTER GOES


cast iron block nickel arc welding rod designed for cast iron

Nov 25, 2013 | Chevrolet Cars & Trucks

1 Answer

Miller 300D I'm having issues striking an arc even when I have it turned up to 140. Or when welding the rod just sticks in the middle of a pass. Welding structural steel with 7018 1/8 Excalibur rod. Any...


The problem might be with your rods. It sometimes happen that the flux around te metal becomes soft if the rods were kept where there is a lot of moisture. If that is the case you can 'bake' the rods in the oven to dry it our. The flux must have a lower melting poit than the metal rod so that it can make a cup. The edges of the cup keep the rod away from the metal, allowing the arc to jump.
How do you 'strike' an arc? One method is to tick on the metal. A better method is to stike the rod over the metal like you stike a match. This action will give you the 'cup' that you need to start welding.
I hope it helps.

Oct 18, 2013 | Welding Tools

2 Answers

My Hobart 140 will not get hot enough to make a weld. It will feed out the wire, make a spark, and the flux core wire will melt on top of the thin rouaght iron square tube fence but it will not melt into...


Hi:
Sounds like you have the wrong polarity in your machine. If you are using flux core wire, make sure to connect your ground clamp to the positive side and your gun to the negative side. Dial the right voltage and wire speed according to wire size and metal thickness.Let me know if this help.
Regards,D.S.

Nov 18, 2011 | Hobart Handler 140 Mig Welder

1 Answer

I have a leak in my dc headers. can i just weld it or do i have to buy new headers?


Hi,
This hole can be welded, you need to use an arc welder and cast iron welding rods.
Thanks
Jason

Mar 01, 2011 | 1993 Honda Accord

1 Answer

Crack in factory weld on manifold


your going to have to fix that double quick.
If it's the intake manifold you can try "BLACK SILICONE" on the crack.
Black high temperature will hold till you can find a welder that does Helli arc.
Exhaust cracks need to be arc welded if they're steel or iron.

Dec 02, 2010 | 2005 Nissan Altima

2 Answers

My tig welder wont arc unless I touch the metal with it


my guess would be the type of welding machine you have.usually there is extra switch which says start control also continious cycle , sometimes smaller machines dont have these switches to allow a wider variety of tweeking the welder ,also its ok if you have to touch the base metal cause thats what starts the contact with the work peice ,keep a arc after touching about 1/4 inch away from work peice ,also a good steady hand rest will make a good welder in any situation this should allow the arc to remaim stable with a comntinious weld arc puddle. happy welding

May 22, 2010 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

1 Answer

I dont know what kind of metals this wire type can do, it says fire power 1440 u235 flux wire, but not sure what kinds of aluminums or steels it can weld. Im a certifed MIG aluminum welder, but this is a...


Usually a flux core only welds steel. It is a higher penetration weld than a MIG. Usually it acts similar to 6011 rods in SMA (Shielded Metal Arc) welding -- a.k.a. stick welding -- if you're familiar with that. I don't believe there is such a thing as flux wire for aluminum. There may be stainless wire for it, but I've never seen it. It probably could also be used for building up cast iron and cast steel, but nothing structural. I have a Chicago Electric one and I love it -- simple and it penetrates hard. My 90 amp will weld to 3/8" without breaking a sweat and if I baby it will go to 1/2" or better. It is difficult to go much lower than 12 or 14 gauge though due to the high penetration.

Nov 28, 2009 | Campbell Hausfeld MIG / Flux Core Wire...

1 Answer

Ground lead arcs when I connect, and auto idle kicks up


Hi
what are you connecting the ground lead to?

Is the welding machine phisicaly in contact to what you are welding ?

Can you electrically insulate the welding machine from everything, say stand it on a sheet of timber?

Regards
Rob

Feb 07, 2009 | Miller Welding Tools

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