From GAWDAwiki
Arc stability is the term used to describe the regularity at which droplets detach from the consumable wire or rod during welding. Processes with good arc stability have droplet detachment rates that are regular and of consistent size. These create a minimal amount of disturbance to the weld pool. Similar processes that have poor arc stability are characterized by irregular droplet rates, with droplets of different sizes. One consequence of this is an increase in the amount of spatter produced. [1]
References
- http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/a.asp