Once you get established with the puddle
control being consistent, now we can go ahead and introduce some filler metal.
At this point we’ve already practiced our hand control with the torch, our motion
towards angles and now we’re going to add introducing the filler metal. We try to tell people to start
introducing the filler metal with a dab and move motion. Dab it, move the torch.
Dab it, move the torch. Dab it, move the torch. And just pick up that rhythm.
There’s no need for excessive torch movements. It’s not like oxy-fuel welding
where you’re constantly moving the torch in the heat zone. This area here
maintains a steady motion. This hand is doing most of the movement. First we’re going to establish our
puddle increasing our current control until the puddle is established. We’re
going to start adding filler metal to the edge of the puddle. We’re going to
start moving, dab, move, dab the filler move, dab the filler, and as you master
that move and dab technique you can start picking up your rhythm. And pretty
soon you’ll be just moving and dabbing in one motion. So here we see we’ve made
our first pass with adding the filler metal. We’re maintaining a proper
consistent width of the bead. So in other words, we’ve got our puddle control down
pat. Our pedal deposition is pretty consistent so we were adding the filler
metal consistently and our travel speed wasn’t too excessive. There are a number
of things that come into play when controlling the puddle on aluminum.