Overview of Weld Types 221 - Tooling U-SME

The length of the slot weld can be obtained from the ratio of plug weld vs slot weld Single-U butt weld 8 Single-U butt weld 9 Backing run; back or backing weld 10 Fillet weld 11 Plug weld; plug or slot weld plug and slot welds Plug welds and slot welds are identified by the same symbol, except that the plug weld symbol has a diameter symbol placed on its right side

plug or slot weld symbol Plug weld Best for: large or thick materials that won't be subject to heavy loading Used to join two metal workpieces that overlap, such