2. Objectives
• Determine the proper location of
the stud-weld symbol on a print
• Determine the stud diameter
• Determine the number of studs
• Determine the pitch of a stud weld
3. Stud Welds
• Joining of a metal stud to another
metal workpiece
– By means of arc, resistance, friction,
or other process
• Stud-weld symbol always placed
below reference line
• Arrow points to surface to which
stud is to be welded
4.
5. Stud Welds (cont’d.)
• Arrow side significance applied to
symbol
– Not used with other side or both sides
significance
• Arrow not shown with a break when
indicating stud welds
• Three elements applied to symbol:
– Stud size, spacing, number
6. Stud Welds (cont’d.)
• Stud size dimension placed to left
of symbol
• Number of stud welds placed in
parentheses below symbol
• Pitch placed to right of symbol
• Length of the stud shown on a
detailed drawing
7.
8. Stud Welds (cont’d.)
• Location of studs welded in straight
line with equal spacing
– Pitch dimension applied on right side
of symbol
– Location of first last stud dimensioned
on the drawing
– Welding process reference stud weld
(SW) included in tail
9.
10. Stud Welds (cont’d.)
• Studs welded in with unequal
spacing, or not in a straight line
– Location of each stud must be
dimensioned on the drawing
– Multiple arrows may be used
11.
12. Summary
• Stud welding is the joining of a
metal stud to another metal piece
• Arrow side significance applied to
symbol
– Not used with other side or both sides
significance
• Three elements applied to symbol:
– Stud size, spacing, number
