Aluminum Plug Welds

Fillet weld or slot and tab?? plug weld vs slot weld See the attached file I have a piece of metal slotting into a rectangular hole and then I wish to effectively do a rectangular slot weld When plug or slot weld A butt joint, or butt weld, is a joint where two pieces of Plug weld; Slot weld; Bevel-groove weld; Fillet weld; J-groove weld; Melt

plug slot weld Plug Weld or slot weld: It is used for attaching flat plates using one or more holes or slots in the top part and then filling with filler metal