Page 66 - CITS - Welder - Trade Theory
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WELDER - CITS
Prevention or minimization of distortion
Several ways can be used to minimize distortion caused by shrinkage:
1 Do not over weld
2 Control fitup.
3 Use intermittent Welding
4 Use as few weld passes as possible
5 Place welds near the neutral axis
6 Balance welds around the neutral axis
7 Use back step welding
8 Anticipate the shrinkage forces
9 Plan the welding sequence
10 Remove shrinkage forces after welding
11 Minimize welding time
12 Use the smallest leg size permissible when fillet welding.
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CITS : C G & M - Welder - Lesson 12&13 CITS : C G & M - Welder - Lesson 12&13
