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Advantages & Disadvantages of Visual Inspection

What is Visual Inspection?

Visual Inspection NDT techniques rely on the aided and unaided eye for the purpose of inspecting a part. VT is the most common testing method used across all industries. Visual Testing is inherently part of all other test methods. Visual test method may be performed by direct line-of-sight viewing of a specimen or may be used indirectly through the use of mirrors, borescopes, or via remote viewing. Visual inspectionmay be aided by the use of a magnifying glass or unaided with the nakedeye. Many defects can be found using visual testing, including cracks, corrosion, misalignment of parts and discoloration.

As long as inspections are being performed, the Visual Testing Method will be one of the most important tools an inspector can have in his arsenal.

Advantages of Visual Inspection Techniques:

  • Inexpensive
  • Little to no equipment needed
  • Easy to train
  • Portable
  • Minimum Part Preparation

Disadvantages of Visual Inspection Techniques:

  • Surface indications only
  • Generally only able to detect large flaws
  • Possible misinterpretation of flaws

Visual inspection training, although easy to learn, requires qualification. By learning visual testing at Texas NDT you will be prepared for any industry that relies on visual inspection techniques. Non-destructive testing involving visual inspection techniques are an effective way of performing primary NDT, so take advantage of our NDT consulting services and learn visual inspection methods immediately.

Additional courses include Magnetic Particle Testing, Ultrasonic Testing and Liquid Penetrant Testing.

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