AWS D1-Series References to WPS for Plug and

The seam weld uses a similar process as a spot weld but in an elongated fashion There is no preparation like a plug or slot weld, rather the weld projects

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 weld The hole can be open at one end and can be partially or completely filled with weld material The only difference is that a plug weld's

plug slot TYPES OF WELDS, , * Plug welds and slot welds are used for attaching flat plates,, using one or more holes or slots in the top part and then filling, with