I’m learning how to weld aluminum, I’m welding some 3/16 6061 with 4043 filler rod but I keep getting contamination in the weld, but the contamination is coming from the filler rod. Is it possible to buy a bad batch of filler rods. If anyone could explain this it would help. I’ll attach a picture of...

cj737 wrote:How about posting a picture of the machine settings and cable connections?

I use the foot pedal for amp control and I’m using 20cfh of argon

I’ve been trying to learn how to weld aluminum but I can’t figure it out I’ve tried every setting and I just can’t seem to get a puddle to form I think the problem is I’m using some Lowe’s aluminum and not like 6061 but I’ll attach a picture and if anyone could tell what I’m doing wrong it would be ...

25 cfh argon is high, isn't it? i recall reading that too high a flow rate can draw in ambient atmosphere and contaminate the weld. The Miller weld calculator can provide the proper flow rate. Also, some flow meters are graduated in liters per minute, rather than cubic ft per hour. Most the guys at...

rick9345 wrote:6061 ? or hardware store special.

Hardware store special

I just started tig welding aluminum and I cannot figure out what I'm doing wrong. The machine is an ahp alpha tig 200x and the setting I've been using are 150 amps, 3/32 blue tungsten, 25 scfh of argon, 120hz and 35% ac balance. I have just been trying to practice on some 4043 1/8 flat bar. As soon ...