Figure 3-19. - Spot and seam welds.

Figure 3-20. - Parts of a groove weld and fillet weld.

seam. In this process, the metal pieces pass between roller type of electrodes. As the electrodes revolve, the current is automatically turned on and off at the speed at which the parts are set to move. Seabees do not normally use seam welding, because this type of welding is most often used in industrial manufacturing.

PARTS OF WELDS

For you to produce welds that meet the job requirements, it is important that you become familiar with the terms used to describe a weld. Figure 3-20 shows a groove weld and a fillet weld. 'he face is the exposed