Quote:
Originally Posted by milt
I just saw this. I'm surprised Ben (mb911) would say to go ahead and weld on your suspension when you admit you're not that experienced and "uncomfortable" with hooking up the equipment.
A Lincoln 100 is a weak machine at best. I'd want to see your welds before you welded on my suspension. One of the trickiest welding processes is to weld up different thicknesses of materials, not to mention those of different composition. If I understand what you are proposing, you are going to attempt to weld a forging to a DOM tube.
Ben is a welding instructor and I'm a student in another state. I wouldn't try to tell him how to weld, that's for sure. But, IMHO, you will get better penetration with a small welder using flux core wire and DCEN. You need to concentrate the puddle on the thicker material just "picking up" the tube part or you'll burn thru. That won't be good.
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DCEN does not give you better peno what it does is allows for better melting of the filler wire where as DCEP will and always does penatrate much better into the base material specifically because of the co2 enriched argon mixture.
We actually teach a small course in these 110v machines and the weld pak 100 is a small unit but good to about 1/8- to a push of 3/16ths thick. the hobart 140 or miller 140 are really the best choices for the job.
as to if I was recommending welding on the suspension It is all on the owner/operator of the car and machine. I personally would have no problem but that is not to say everybody should take this up as a project if they don't feel comfortable.
oh and should you decide on doing this I would highly suggest a a push type weld keeping the wire on the very front edge of the puddle otherwise you won't get good colesence of materials