What is Slag in Welding, and How Does It Work? 2021 Guide ...
Slag is messy. It gets everywhere when you are welding and causes a lot of smoke. ... How to Remove Welding (With and Without a Grinder) ... This means that the transfer moves across the arc in large molten droplets. This type of welding is used outdoors where gas coverage would be blown away by the wind. The slag can be difficult to remove.