Welding electrodes are consumable welding sticks used for welding projects and machines to weld together metals in the stick welding process.
The stick welding process is also called Shielded Metal Arc Welding (SMAW).
Take a look at the image below to see a typical stick welding setup.
When you do stick welding, you do have a welding machine with an electrode cable and a ground cable. The electrode cable connects the electrode holder with the machine. The ground cable with the ground clamp is attached to the workpiece. The electrode holder holds the welding electrode.