Finishing your weld?

[Mathius]

Use a die grinder with a wheel, grind perpendicular to the weld. I use this kind of wheel... http://www.autobodytoolmart.com/imag...um/4290_91.gif
with this kind of grinder....http://buy1.snapon.com/catalog/objec...8400/48363.JPG

get the weld down flush with the surrounding metal then finish the weld with what’s called a "roloc" disk (I like a 50 or 80 grit wheel) on a 90 degree die grinder,

for this i use this kind of disk....http://www.autobodytoolmart.com/imag...arge/11323.gif

with this kind of grinder....http://buy1.snapon.com/catalog/objec...3600/43542.JPG

when doing this grind parallel with the weld. This should take very little metal away all your doing here is getting rid of your grinding marks and leveling. if you really want it nice DA over every thing with 80 grit sand paper. Then finish with body filler or seam sealer.



this is pretty much the standard technique in most automotive fabrication in my opinion

Man, I don't know if I'm using the wrong wire, or if I'm just buying crappy grinding and cutting discs, but I ground away with a 4.5" angle grinder today on one of my welds and couldn't level it. Didn't want to go too hard, because it'll just destroy the surrounding sheetmetal in the process. Took it down as far as I could, roloc 36 grit sander, and still couldn't clean it up.

I have a flap disc I could try.

Mathius