What is visual inspection? – Basics of visual inspection

What is visual inspection? – Basics of visual inspection

Visual inspection is the primary method which should be used to confirm that the procedures, materials and workmanship incorporated in the Work are those that have been specified and approved for the project. it should be conducted by appropriately qualified personnel, in accordance with a written practice.

Visual testing is the most basic & usual testing technique involves in using of human eyes to look for defects. But now quality teams are using special equipment to complete the quality tasks.

Inspection in engineering

Engineering units often use visual inspection technique in quality inspection process. Visual inspection can be used for internal and external surface inspection of a variety of equipment types, engineering tubes, automotive parts etc.

Depending on how the quality assurance and quality control functions are structured for any particular project, the role of the visual inspector may vary considerably. The level of involvement of the quality assurance is highly dependent on the structure of the quality control program.

Basics of visual inspection

  • Visual testing is money saver inspection, it is observable error that can be seen by the naked eye, there is no requirement to take the resources and time to continue the inspection process.
  • Visual inspectors are take the product one by one for checking dimensional measurements. That will be highly adequate process which increase the feasibility of defections.
  • In some products, it is not easier for automation, by equipment detection or any non-human interfaces. The visual inspection good part is help to ensure that all the specifications of products.

Advantages and disadvantages

Advantages:
  • Save money
  • Deep inspection
  • Dimensional inspection
  • evaluate workmanship
Disadvantages:
  • Unreliability
  • Imprecision