What is the difference between plug welding and slot welding?

Weld Symbols plug weld vs slot weld Double-U butt weld Flat single-V butt weld with flat backing run Fillet weld Convex double-v weld Plug weld plug and slot weld They also can be used with single weld pass or multiple weld passes PLUG AND SLOT WELDS These weld types are used for joining metals

plug and slot welds Welding Procedure: Double-V Butt-Weld Joints Tested in Compression 99 73 either the plug diameter or the plate thickness It is therefore