Thanks for all the info. The ally is very clean, so I,m leaning towards post flow. Still welds really nice, just never seen this happen before. I might throw another tungsten in there and up the PF to 6 secs as suggested. I also noted the inside of the cup isn’t looking to clean, looks like some all...

Just bought a new machine and have been running some nice beads on 4 mm ally with a 3.2 Zirconiated tungsten. Ac balance at 35%. The tungsten has a nice small ball after welding but the first 2 cm of the tungsten including the tip has This brown dusty colour. I’m using an 8 cup gas lense with 2 secs...

Thanks for the info. Thats a good article, very informative. No need to worry about describing things in Laymans terms, I have a very good understanding of the green steam.

The machine is a metal master 250, Not super budget but middle of the range coming in at a few $K

Awesome thanks for the info.

The settings I have to play with are;

Pulse v/a (peak). 14 - 27.5
Pulse duty. 10-90%
Pulse frequency 10-240hz
Base v/a 14 - 27.5

Inductance 0 - 100%

Hi all, If this topic is already discussed in detail in another post please feel free to direct me there. It appears to me that information on the web about the subject topic is hard to find. Can someone give me the basics of the pulse setting for ally mig. I’ve set the machine up to lay down some n...