Tweco 211i Fabricator - Manual (Page 75)

BASIC WELDING FABRICATOR 211i
Manual 0-5157 4-15 BASIC WELDING
Art # A-07708
B
Preheat Preheat
Dotted lines show effect if no preheat is used
Weld
C
Figure 4-32: Reduction of Distortion by Preheating
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Figure 4-33: Examples of Distortion
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1
Block Sequence.
The spaces between the welds are
filled in when the welds are cool.
2
3
Figure 4-34: Welding Sequence
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4
3
2
1
Figure 4-35: Step back Sequence
Art # A-07428_AB
Figure 4-36: Chain Intermittent Welding
Art # A-07713_AB
Figure 4-37: Staggered Intermittent Welding