2. Objectives
• Identify typical joints to which the
edge weld symbol is applied
• Translate dimensions applied to the
edge weld symbol
• Identify sections on a print to which
an edge weld is to be applied
• Identify a staggered intermittent
edge weld on a print
3. Edge Welds
• Edge weld symbol replaced flange
butt and corner flange symbols
• Former welds identified as joints to
which edge weld is applied
– Edge weld also applied to edge joint
• Used for sheet metal joinery
• Shown having arrow side, other
side, or both sides significance
4.
5. Edge Welds (cont’d.)
• Have a both sides application only
to an edge joint
– Symbols placed opposite each other
on the reference line
• Dimensions:
– Size, length, spacing (pitch of
intermittent welds)
– When weld is full length of joint, no
length dimension required
6.
7.
8. Edge Welds (cont’d.)
• When length specified, dimensions
within extension lines
– Hatching lines applied to detail
drawing to indicate lengths
• When length and spacing of
intermittent edge welds specified
– Dimensions to right of weld symbol
– First dimension represents length;
second represents the pitch
9.
10.
11. Edge Welds (cont’d.)
• Chain intermittent edge weld:
– Edge welds directly opposite each
other
– Length and pitch dimensions located
to the right of symbols
• Both sides of the reference line
– Length is the first dimension followed
by hyphen and pitch
12.
13. Edge Welds (cont’d.)
• Staggered intermittent edge weld:
– Edge symbol is shown offset
– Length and pitch dimensions placed
on right side of each symbol
• Edge weld symbol same
application to multiple members of:
– Flanged butt joint
– Flanged corner joint
– Edge joint of more than two members
14.
15.
16.
17. Edge Welds (cont’d.)
• Symbols used with edge weld:
– Melt-thru
– Flare V-groove
– Flare bevel groove
• Melt-thru symbol added when
complete joint penetration specified
– Joint loses its identity
• Flare V-groove and flare bevel
used to reinforce welded joint
18.
19.
20.
21. Summary
• Edge weld symbols have many
elements applied to other welds
– Size, length pitch
– Weld-all-around, weld-in-field
– Finishing, methods of finishing
• Applied to flange-butt, flanged
corner, and edge joints
• Used with melt-thru, flare-groove,
and flare bevel symbols
