Page 319 - CITS - Welder - Trade Practical

WELDER - CITS

EXERCISE 89 : Conduct Visual inspection of weldments

Objectives

At the end of this exercise, you will be able to:
• all work completed weld face plus ½ inch on both side of weld shall be visually inspected for the entire
length of the weld
• how distance and angle the inspector’s eyes should be within 24 inches of the surface to be inspected and
b at an angle of at least 30 degrees to the surface being inspected.

Job Sequence

- Visual inspection is a non-destructive testing (NDT) weld quality check process.
- During the testing method, the weld is examined visually through the eyes to determine surface discontinuities.
- The process must be conducted by an experienced welding inspector.
- Visual inspection of welded connections is the most common weld quality testing methods.
- This type of inspection is probably the most underrated and often misused, method of welding inspection.
- Because of its simplicity, and the absence of sophisticated equipment, the potential of this method of inspection
is quite often underestimated.
- Visual inspection of welding can often be the easiest to perform and is usually the least expensive to conduct.
- If carried out correctly, this type of inspection can often be an extremely effective method of maintaining
acceptable welding quality and preventing welding problems.
- There are many areas within the welding operation that can be verified and evaluated by this method of
inspection.
- When designing an inspection plan, we need to establish the most appropriate areas to apply our inspection.
We need to consider the possibility of preventing welding-related problems, rather than finding problems that
may have already occurred.
- Non- destructive testing (NDT), which is typically used for the inspection of completed welds, is usually
designed, and conducted to find welding problems after the fact when the weld is completed. Visual inspection
can often be utilized to prevent welding problems from happening in the first place.
Wear protective clothing.

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