welding question (hobart handler 140)

[Halladay]

ok so im working on my duals and everything is rolling along smooth. im wondering if my hobart 140 is hot enough to weld in my x-member mont. its 3/16 steel that is getting welded to the side of the frame. im a pretty good welder and have buddys that are even better. will a single pass be enough of should i go over it more than once? any advise helps 

[junya92toy]

Yes do a multipass weld. 3 would be best but use stringer beads not a weave

[Toymin8r]

Yes, 3/16 isn't all that thick.  I think single pass will burn it fine.  I would be more concerned with using that thin of metal on a cross member.

[Halladay]

its what came with the kit. its frontrage offroad. what do you mean by stringer beads?

[junya92toy]

When you need a stronger weld, you increase the size of the weld. The best way to do that is by making more then one pass. In a t joint, or fillet weld you first weld both pieces together. Then you make a pass that is halfway on the first weld bead and the lower piece( basemetal)  Now the third you would weld halfway on the second bead and the upper base metal.

[Halladay]

oh ok i know what your talking about. thanks man

[skyscraper]

Are you talking about the little pieces of angle iron that they supply for mounts?  If so then one pass will be plenty.  Especially since its a lap weld.  I did them on mine with my 180 and it wasnt even turned up all the way.

[Grunt]

If it is a lap joint, the parts have to overlap 5 times the thickness of the metal being welded. If not the joint will come out of shear and crack at the root of the weld. At 3/16 thick, one good sound bead will be enough.

[zippo]

If you really need to weld it and are worried about not having enough weld, preheat it with a torch. one weld should be enough. 5 cold welds it just that, 5 cold crappy welds.

[junya92toy]

5 cold welds on 3/16? I dont think so

[skyscraper]

I've done these welds he's talking about......he will have no problem.  Its 3/16" to the side of the frame rail.  Which is less than 1/8" right???

[junya92toy]

1/8 is thinner then 3/16
1/8=2/16

[Halladay]

ya i am talking about the two little peaces of angle iron.

[skyscraper]

1/8 is thinner then 3/16
1/8=2/16

Ya.....He's lap welding a piece of 3/16 on to the side of the frame rail, which is thinner.
Anyways, halladay, go for it.  One pass at full power will work just fine!

[Halladay]

cool thanks brothers! lol check out my new post on my build and let me here you advise to my problem....  my signature is a link to my build up( right below this post)