23 Index
of Weld Faults IF
THE FAULT IS IT
MAY BE CAUSED BY REFER
TO Arc Blow Porosity
or Ropey Bead Excess
dc welding current is being used. Chapter
4... Page 1 Welds
made near steel fixtures or in deep grooves. Chapter
4... Page 2 Speed
too slow. Chapter
4... Page 4 Burn-Through
Current too high. Chapter
3... Page 9 Bevel
angle too large. Chapter
2... Page 24... Figure 10 Root
face too small. Chapter
2... Page 25... Figure 11 Excessive
plate spacing. Chapter
4... Page 12... Figure 34 Metal
Spillage On Rounds Fusion Zone Off
center distance not correct. Chapter
4... Page 20... Figure 37 Weld
current too high. Chapter
4... Page 22... Figure 38 “Pear
Shaped” Current too high.
Chapter 4...
Page 1... Figure 27 Voltage
too low. Chapter
4... Page 3... Figure 28 Multipass
needed. Chapter
4... Page 43 Penetration
too deep or too shallow Current
too high or low. Chapter
4... Page 1... Figure 27 Voltage
too high or low. Chapter
4... Page 3... Figure 28 Incorrect
plate spacing Chapter
4... Page 11... Figure 33 Use
DCSP Porosity and Gas
Pockets Joint Contamination.
Chapter 4...
Page 7 Shallow flux burden.
Chapter 4...
Page 6... Figure 30 Improper
cleaning. Chapter
4... Page 7... Figure 31 Contaminated
manual weld backing. Chapter
2... Page 20 Insufficient
penetration in double welds. Chapter
4... Page 12... Figure 34 Improper
fit-up in welds with manual backing. Chapter
4... Page 14... Figure 35 Reinforcement
Narrow & Steep-Sided Flux
layer too narrow. Chapter
4... Page 3 Too
low voltage. Chapter
4... Page 3... Figure 28 Improper
plate preparation. Chapter
2... Page 24... Figure 10 Reinforcement
Overlapped Current too high.
Chapter 4...
Page 1... Figure 27 Speed
too slow. Chapter
4... Page 4... Figure 29 Voltage
too low. Chapter
4... Page 3... Figure 28 Click
on the page link to view the page and Illustration
