Figure 9 Surfacing, Plug , and Slot Welds

The main difference between plug welds and slot welds is the shape of the hole that is drilled into the metal A plug weld has a round hole,

Plug welds are circular welds made through one member of a lap or tee joint joining that member to the other The weld may or may not be made through a hole in

slot car diorama I will circumference weld the plug as well but want to put some plug welds indexed around the tube OD A couple pieces of tubing have partial threads that the

slot in fence panels The seam weld uses a similar process as a spot weld but in an elongated fashion There is no preparation like a plug or slot weld, rather the weld projects