A plug weld is used to fasten two pieces of metal together using a welder. When joining the pieces, a hole is drilled into the top piece and it is laid over the bottom one. A weld is then made by running a bead inside of the drilled hole, thereby holding the two pieces together. When doing auto body repair, this type of weld is often used when replacing body panels. The finished result resembles a spot weld in that it is circular.
Plug Weld Strength
When joining two dissimilar thicknesses of metal, the plug weld is often the weld of choice. By welding the thin top piece to a thicker bottom piece, a strong weld can be produced. While this type of weld is occasionally used to connect two thick sheets of steel together, it is primarily a thin metal weld. When making one, welders need to be careful not to burn through the bottom piece of metal.
Plug Or Slot Weld
Plug & Slot Welds Indicated by Arrow on Side of Joint Plug and Slot Welding Symbols Indicating Location and Dimensions of the Weld – fig. 3-11 Plug Weld Dimensions. Dimensions of plug welds must be shown on the same side of the reference line as the weld symbol. The size of a weld must be shown to the left of the weld symbol. Welded Connection Formulas. Simply select the picture which most resembles the welded connection configuration and loading condition you are interested in for a list of relevant weld stress formulas. This section covers the requirements for the design of welded connections. It is divided into four Parts, de. Let weld in a hole or slot calculated from this length is greater than the area calculated from 2.5.1, then this latter. Plug, or slot welds, or by two or more longitudinal fillet or slot welds.
What Is A Slot Weld
The weld is also used when welding a rod inside of a pipe. When the fit is such that the rod or bolt stud fits snugly inside of a hollow tube, a hole is drilled into the tube and a plug weld is used to secure the rod inside of it. Occasionally, this method is also used when welding thin exhaust pipes onto a vehicle. Once the exhaust sections are installed, the pipe is welded using this method to secure the system underneath the vehicle.