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SEMI F81-1103 © SEMI 2003 8 Figure 3 ID Convexity Figure 4 Weld Width Variati o n Figure 5 Weld Bead Meander Figure 6 Bead Overlap

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SEMI F81-1103 © SEMI 2003 7
(a) OD concavity
(b) OD convexity
Figure 2
OD Concavity and OD Convexity
SEMI F81-1103 © SEMI 2003 8
Figure 3
ID Convexity
Figure 4
Weld Width Variation
Figure 5
Weld Bead Meander
Figure 6
Bead Overlap
SEMI F81-1103 © SEMI 2003 9
Figure 7
Unconsumed Tack Welds
Figure 8
Axial Misalignment