Stud weld
Applied to joint
Surface build-up / overlay on base plate
Download
Shop
TIG welders for edge welds
Precision TIG machines for thin sheet and edge weld applications.
→ weldingandwelder.com
Description
A weld that attaches a stud, pin, or similar fastener to a plate or surface. The stud welding process (drawn arc or capacitor discharge) lifts the stud, forms an arc, melts the faces, then plunges the stud into the molten pool. Very fast (milliseconds to seconds).
In plain English
You load a stud into a gun, press it against the plate, pull the trigger, and in a fraction of a second the stud is welded on. The gun lifts the stud, strikes an arc, melts the base of the stud and the plate surface, then rams the stud into the puddle. The ceramic ferrule (or gas shield for CD studs) contains the molten metal. Shear studs on composite steel/concrete decks are the most common application -- thousands of them on a typical bridge or building. Also used for insulation pins, cable tie mounts, and threaded fasteners.
Symbol position
Circle with X through it on the reference line. Arrow points to the surface receiving the stud.
Size notation
Stud diameter shown. Pitch and quantity if in a pattern.
Common uses
- Shear studs on composite steel-concrete decks
- Insulation attachment pins
- Threaded fastener attachment to plate
- Cable tie mounts and anchor points
