Welding polarity can be confusing to someone that’s just learning how to weld. There are several different terms used to describe it and different welding processes and electrodes may require different settings. It may not seem to make much sense at first, but if you understand the basics it should become more intuitive. [...]

There are four basic welding positions, or orientations, that have been defined by the American Welding Society. They are Flat-(1), Horizontal-(2), Vertical-(3), and Overhead-(4). These positions are designated by the number that relates to the position followed by a letter that designates the type of weld; (F) for fillet weld, and (G) [...]

When fabricating with structural shapes, sheet, plate, or pipe, there are five basic joints that are encountered.
1. Butt Joint
2. Corner Joint
3. Edge Joint
4. Lap Joint
5. Tee joint.