Plug welding with an arc?

Plug welded joints are used- plug slot weld Featured Product Categories · Hose, Piping Tubing and T-Slot Framing · Seals and O-Rings · Filters, Separators and Purifiers · Motors, Drives and Controllers plug weld and slot weld - Slot welds are typically used in lap joints where the fillet weld length is limited Plug Welds:

plug or slot weld This document defines plug and slot welds and discusses how they are represented in welding symbols Plug welds use a round hole while slot