I have an AC buzzbox stick welder. It isn't the easiest thing to use,
starts are hard and it sticks a lot. I have heard that DC stick is
easier, but how much easier?
For not much money I can get a rectifier to convert it to DC, would that
be worth doing?
Would I need a capacitor in the output?
-- Peter Fairbrother
A cap might help , but what is really needed to stabilize DC output is a
large choke coil . I also have a buzzbox (225A Lincoln) that I built a
massive full wave rectifier bridge for , but never used it because I had no
coil to stabilize the current .
Not doing a lot of stick , I'm not really good at it , but I don't have
the problems you describe . I'm using all 1/8" electrodes , 6011 , 6013 ,
and some 7018 AC that came with the box
If you can find it on your side of the pond, try some of the 7018-AC or AC7
018, it runs a lot more like 7014. It's a type of 7018 made just for AC we
lders and doesn't stick as badly and is easier to keep the arc going. I've
found a quick light tap of the rod end on the pavement before restriking w
ill usually knock the button of slag off the end.
With my tombstone, about the smallest I go is 1/16" (1.5mm) in 7014 or 6013
, which it actually does fairly well. I think I'd be hard pressed to go sm
aller than that, though. Most of what I run is 3/32" and 1/8" (2.5 and 3mm
) for typical box and angle stuff, Don't do much work with sheet, but if I
did I'd be tempted to go more with button (plug) welds rather than a conti
Hope that helps,
7014/7018 is an often recommended stick. I almost always use 6013 (it's
easy and my works well for my pedestrian needs). Would 70xx have an
advantage for me over 6013? Assuming that it would NOT be kept in a
oven, but in a PVC-pipe-with-caps container.
After much practice my 7018 test coupon welds survived being bent 180
degrees on a 50 ton press. I think testing yours to destruction should
tell you enough about their adequacy.
I keep 7018 in the gasketed rod 'keepers' like this:
If you can be sure to keep the moisture out when storing then you can
buy enough to have around. It is stronger than 6013. The welds look
great and the slag is easy to remove. There is less spatter. It
requires clean metal to weld on, it won't burn through crap like 6013