Typical cylindrical electrodes, also known as pointed electrodes, are best for all-purpose gouging. Flat electrodes are good for achieving a flush surface, as in removing weld reinforcement or creating rectangular grooves. Jointed electrodes allow the ends to connect — eliminating stub loss — and hollow electrodes allow for increased travel speed.

Why should I use a machine with a dedicated gouging process? 

Gouging is a process just like stick or MIG welding. Just as with those welding processes, technology in Miller engine-driven welders and plug-in welding power sources that include a gouging mode has resulted in optimized gouging performance. Reference the owner’s manual for your power source to find the gouging setup, if applicable.

A dedicated gouge mode enables operators to keep the arc lit more consistently and makes it easier to manipulate the arc. Otherwise, the arc going out can cause the operator to struggle.