What conditions (rod size, Amps, etc.) and techniques would you use to weld scaffold tube to make railings?
Standard scaffold tube - 48.3mm OD, wall thickness about 4mm, galvanised (I think that's 1.5 NPS pipe).
It worked pretty well, but I wish I could consistently replicate the ones which worked really well - "like magic".
No-one here in UK uses 6010 for general use, so I've never seen anyone else using 6010 and likely never will. So you'd have to tell me the first steps.
I can keyhole a plate-butt root with 6010 - that's all my prior experience.
A plain butt - lengthening tubes - that worked well with 1mm gap no prep. and one side (half the weld) took seconds, using a 3.2mm /1/8th-inch 6010 :-) That was going vertical-up.
It's intersections, where you "scallop" the intersecting tube end to fit against the stanchion (the continuing tube). Fit is variable from touching to about 2mm (given I have to work fast using just an angle-grinder to prep.)
I got best results so far going vertical-down - coped with varying fit-up.
Please - tell me the basics... !
Thanks in advance.