Mig weld pics

[clintonwelding1]

can some of you guys post what a mig weld should look like?
Im getting beads with no fish scales.

[martymar333]

what do you mean....no fish scales?



marty

[clintonwelding1]

its just a smooth bead, no half circle lines

[tigman250]

there are many variables that effect how a mig weld looks, two of the biggest are gas type and motion used while welding. what gas are you using and are you using any type of motion while welding?

[clintonwelding1]

im using C25 and no im not using any motion while welding, when i do my bead becomes crooked

[tigman250]

if you are trying to achieve the "fish scale" look try stopping momentarily when pushing the bead, push for a second, stop for a second, push for a second, stop for a second and so on.

[martymar333]

if you are trying to achieve the "fish scale" look try stopping momentarily when pushing the bead, push for a second, stop for a second, push for a second, stop for a second and so on.

or if you are pushing to your left, try a counterclockwise motion....to the right clockwise motion.

marty

[KB Fabrications]

Sorry but this is all I have. Maybe Dan will post some of his robotic mig welds. Now let's see what you have got.

[EvanK]

The only way to fix a crooked bead is to practice, its not like tig where your bead is always uniform unless you swirl the torch every which way. The motion in which you move the gun determines the bead width. I learned by using a pigtail motion, like a loop de loop. Get some pics of your work.

[clintonwelding1]

he he he, i wrote my teachers name on a piece of metal with the mm135 and am going to give it to him tommorow

[Danny]

Sorry but this is all I have. Maybe Dan will post some of his robotic mig welds. Now let's see what you have got.

Dang it Kevin, can't you run something else besides that Passport. Now I am going to be starring at the PDF files (spec sheets) on the unit all evening. And then will have to spend another day convincing myself i don't actually need it. Thanks alot.

[clintonwelding1]

im going to try the stoping thing tommorow when i get somemore gas

[Danny]

Here are a couple sample welds, on 1/8" from two different units. Both were ran with pretty much a straight travel. I might have used a very slight side to side motion as i traveled along though.

Since your running a 120V unit, that tend to be border line on 1/8", I am also including a picture of a weld produced using an elliptical motion that might be useful for you to use with your unit on 1/8". With my 230V unit, I normal only use this oscillation for the most part on 1/4", and only ocassional then. However, in the past I 've used it on 1/8" too, running one of these smaller 120V units, which is why I am providing you with a sample.

[Sundown]

Since you just want pictures here's a vertical down on 1/4" with .030 wire, it was done using Dan's elliptical motion, well that is as near as I can get to it anyway.

[Laiky]

Can someone describe the elliptical motion?? i usually just weave and i get smooth beads. Am i doing something wrong?