symbol to direct the welder in producing the proper weld
joint. The arrow of the welding symbol indicates the
point at which the weld is to be made. The line
connecting the arrow to the reference line is always at an
angle. Whenever the basic weld symbol is placed below
the reference line, as shown in Figure 6-19, the weld is
made on the side where the arrow points (referred to as
the arrow side). Whenever the basic symbol is placed
above the reference line, the weld is to be made on the
other side of the joint, as shown in Figure 6-20. By
placing dimensions on the symbol and drawings, the
exact size of the weld may be indicated. Study the
62 Gas Metal Arc Welding Handbook
Groove
Square Scarf V Bevel U J Flare-V
Flare-
bevel
Fillet
Plug
or
slot
Stud
Spot
or
projection
Seam
Back
or
backing
Surfacing
Edge
Figure 6-18. Basic weld symbols. (Printed with permission of the American Welding Society)
Desired
weld
Arrow side
Fillet weld
symbol
Figure 6-19. Fillet weld symbol shown on the bottom side of the
reference line indicates that the weld is located where the arrow
points.
Desired
weld
Other side
Fillet weld
symbol
Figure 6-20. Fillet weld symbol shown on the upper side of the
reference line indicates that the weld is located on the opposite
side of the joint.