1F Lab Joint – Welding Level 4

In this welding video, the instructor demonstrates how to perform a 1F lab joint using the stick welding process. The 1F lab joint involves welding two pieces of metal perpendicular to each other. The instructor starts by explaining the importance of selecting the correct electrode and setting the machine to the correct polarity. The instructor then shows how to properly prepare the metal pieces for welding, including cleaning, beveling, and tacking the joint. The welding process involves running a series of short beads along the joint, alternating between the two sides to prevent warping. The instructor also provides tips on maintaining a consistent arc length and electrode angle for a strong, clean weld. The finished product is a solid 1F lab joint that is ready for further use.