what is the difference between a plug weld and slot weld? -

Weld and Welding Symbols slot weld vs plug weld Plug and slot welds Welders use plug welds and slot welds to join overlapping members, one of which has holes (round for plug welds, elongated slot jp besar - Slot welds are typically used in lap joints where the fillet weld length is limited Plug Welds:

slot delik Plug Weld; Bevel-Groove Weld; Slot Weld; J-Groove Weld; Melt-Through V-Groove Weld; U-Groove Weld; Edge-Flange Weld; Corner-Flange Weld