[Glidertow]

I have been trying to read all I can on pulse mig. I have a Miller 350P and have just gotten a bottle of the proper mix 90/10. It is running amazing beads just by moving gun in straight smooth action. Is this the norm or should I try another method of gun movement. Just not much out there to read. I welding mild steel, 14g up to 1/4 making tables, furniture, some farm repairs.

[weldin mike 27]

Run straight. Keep doing what you are doing. Only thing is to make sure you have the arc on the leading edge of the puddle, so you can be assured it's eating fresh metal as you progress.

[Otto Nobedder]

Welcome, Glidertow,

I can guess what you do for a living!

There are at least two members here with a lot of experience (certified procedures, etc.) on pulsed MIG.

Be patient, and they'll comment.

Steve S

P.S. There are a few folk here who are building their own airplanes...

[Superiorwelding]

Glidertow,
Welcome to the forum! My preferred method, and the only way you should in my opinion, is a smooth pushing method. I personally like the smooth look of GMAW welds anyway, especially GMAW-P. We are getting into welding theory here but one reason I do not feel whipping is acceptable is the loss of depth of fusion and loss of amperage/voltage. Note that I will whip when necessary like filling in gaps but as common practice I will push without oscillating. I have some articles you should read on pulse welding but will have to dig them up this weekend.
-Jonathan

[Glidertow]

Thanks for your posts.

[Glidertow]

Ok friends, things are just not going well. I have several hours under the belt now with this pulse process. Im having spatter issues. 12g mild steel tubing, 90/10, .035 wire, factory settings or slightly below, spatter everwhere. It got to be stickout or angle. Drastic change from short circuit.

[Superiorwelding]

My first thoughts would agree with your gun angle or stickout. Your gun angle should be straight on to a max of 15 degrees push. This will also depend on technique. Your stickout should be in the 1/2"-3/4" range as well. It might be a little hard to help further without a pic or two as joint design will also be a factor. One last thing to check is your gas. Are you sure you have 90/10 and not another mix?
-Jonathan

[Glidertow]

Did some tweaking and I think I have it going smooth. Set arc length to 58, arc with 40, gas 25.. Spatter is all but gone.