11 1/4-in.
Spacing 1/4-in. Plate on 3/8-in. Backing FIT-UP
- STEEL BACKED WELDS CORRECT
SPACING EXCESSIVE
SPACING INSUFFICIENT
SPACING GAP BETWEEN
PLATE AND BACKING Result:
Good quality weld. Result:
Penetration is too deep; arc impinged
on backing plate. Result:
Voids at root corners; shallow penetration.
Result: Weld cracked; fused Submerged
Arc trapped in weld metal.
FIG. 33 - Effect of Improper Fit-Up
in Steel-Backed Welds Plate
on Right Not Flush with Backing 1/8-in.
Spacing1/4-in. Plate on 3/8-in. Backing 11/32-in.
Spacing 1/4-in. Plate on 3/8-in. Backing
