mclorson wrote:
I'd appreciate a detailed description of O/A butt welding, end to end
of mild steel rod. I use 3/16" and 1/4" mild steeel welding rod. I have
been using a HF ring roller to put arcs and curves in the rod. Now I'd
like to join the curves on multiple planes. Emmo (from this NG) has
mentioned it several times. Do you precision fit the ends, hold the
rods together and add filler rod? Or do you puddle up the ends and then
push together? Pushing them together at puddled temp seems like I might
need an extra set of hands. Also,holding the work on the correct plane
has proven to be a real challenge. Any advice on holding or clamping
devices would also be appreciated. I will be using the joined rods to
form a sculpture. I use a Meco Midget torch. Thanks!
-Mike


Best way I've found to fit stuff like this is to push it down in a
sandbox and work it into position. Try fitting with just a little gap,
put a drop of filler on each side of the joint or just one drop and
carry the heat across.

John