About Plug Welds

To enable thicker plate to be joined by 'spot welding' a circular or elongated hole may be machined through the top plate, enabling either a plug or a slot weld

For example, a square groove weld has a square cross section, a spot weld is the shape of a spot, and the cross section of a slot weld is the shape of a slot

plug and slot welds This video lecture is suitable for Civil Engineering students and aspirants who wish to brush up

plug weld vs slot weld Slot weld is also shown in the figure above It is quite similar to the plug weld, except that the hole is not circular, it is an elongated hole