1
INSUFFICIENTWELDTIME
2
EXCESSIVEWELDPITTING
3
METALDISCOLOURATION
4
UNDERSIZEDWELDS
5
DEEPINDENTATION
6
POORLYPREPPED
7
OVERPRESSURE
8
DIRTYSURFACE
9
HEATBUILDUP
10
SHUNTING
E
E
I
J
U
Y
Y
I
E
E
H
E
A
T
B
U
I
L
D
U
P
H
A
G
O
C
H
N
G
N
O
R
H
A
M
X
L
I
D
I
X
S
I
I
D
A
V
O
W
H
N
S
U
Z
M
N
Q
R
O
E
Z
A
U
H
T
X
N
M
E
J
F
S
I
U
E
W
M
O
G
Z
B
W
E
I
Y
M
H
J
Y
R
R
X
U
W
T
F
A
H
I
I
O
F
N
E
T
O
H
E
I
F
P
Q
P
U
Z
A
T
F
B
K
E
T
U
W
O
I
I
C
F
O
Z
U
O
O
R
N
O
O
I
I
Y
V
U
A
L
U
S
P
M
D
S
N
S
C
N
Q
E
D
T
Y
P
C
X
U
R
T
N
B
O
Y
G
Y
H
E
W
X
E
O
S
E
Q
E
D
I
V
A
O
N
K
A
I
V
P
K
U
Z
O
D
V
M
S
R
O
C
L
E
I
C
R
E
S
G
I
U
L
C
N
O
L
B
E
R
U
S
W
A
E
N
O
O
T
D
Y
U
I
Q
E
O
T
A
U
I
O
K
R
I
N
F
W
T
W
O
F
N
A
N
I
F
C
O
I
R
O
A
C
U
E
Z
U
R
E
W
O
I
O
I
G
I
U
V
L
P
N
A
D
O
N
N
E
E
J
U
V
E
S
E
I
P
F
Y
C
U
V
F
G
D
H
X
O
A
A
D
O
S
I
L
J
F
W
E
T
V
A
I
C
D
Q
L
E
W
K
K
A
W
K
Y
S
D
N
L
U
E
A
G
E
A
I
H
D
D
Y
H
A
W
E
E
W
T
S
T
F
B
K
D
A
Z
F
H
E
L
I
T
V
L
N
A
I
L
U
R
E
I
R
E
A
A
E
Y
P
X
K
M
L
Q
X
E
N
U
E
D
B
I
C
M
W
V
H
A
R
M
B
N
A
P
X
A
U
P
D
V
I
S
W
D
X
E
E
I
A
H
U
I
O
A
H
F
C
Q
I
V
S
I
U
L
U
W
E
P
O
O
R
L
Y
P
R
E
P
P
E
D
A
N
M
E
T
A
L
D
I
S
C
O
L
O
U
R
A
T
I
O
N
S
H
Y