Fatigue strength of fillet-weld, plug-weld, and slot-weld joints

The difference between plug and slot welds is that the plug weld's shape is characterized by its diameter, whereas the slot weld's shape is

A Slot Weld is just like a plug weld It is made in a hole that is in a lap joint or a tee joint which joins the metal to the top of the other piece of metal

plug or slot weld 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

plug and slot weld A plug weld, or rosette weld, is a welding method that joins overlapping metal sheets by filling pre-cut circular holes with molten metal,