WELDING THEORY - OD1650 - LESSON 1/TASK 1
FIGURE 10. ARC SPOT AND ARC SEAM WELDS.
(c) The strength of arc spot welds will be designated as the minimum acceptable
shear strength in pounds per spot. In arc seam welds strength is designated in pounds per linear
inch. Strength is shown to the left of the weld symbol (figure 10, view B).
(3) Spacing Arc Spot and Arc Seam Welds.
(a) The pitch of arc spot welds and, when indicated, the length of arc seam welds will
be shown to the right of the weld symbol (figure 10, view C).
(b) When arc seam welding extends for the full distance between abrupt changes in
the direction of welding, no length dimension need be shown on the welding symbol.
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