Visual Testing (VT)

Visual Testing (VT)

About Course:

Visual Inspection is an NDT method for detecting large number of surface discontinuities such as surface cracks in almost all product forms, surface porosity, forging laps, forging seams, shrinkage on surfaces of castings, misruns, sand inclusion areas on the surfaces, surface finish of engineering components at various stages.

Visual testing method can also be used for detecting discontinuities in weld joints such as cracks, undercuts, excess reinforcement, underfills, slag, porosity, burn through, weld finish, lack of fusion, misalignment and cleanliness of joints before welding. VT is a vital tool in Welding and fabrication shops to control quality of weld joints and is crucial to identify process errors during fabrication. The testing is a useful method to check the weld joints for cleanliness before welding, during welding and after welding. Even dimensional measurements using micrometres, Vernier, profile gauges, surface finish measuring instruments are considered as visual inspection tools

Course Highlights:

  • Identifying various discontinuities in product forms such as Castings, Forgings, Ingots, Rolled plates, Weld joints, Extruded and drawn products, in-service preventive maintenance of plants and structures.
  • Understanding the relevant welding technology related to visual inspection
  • Understanding the need for documentation in welding
  • Familiarity with codes and standards related to inspection requirements
  • Carrying out inspection of parent materials and consumables
  • Perform visual inspection of welds, report on them and assess their compliance with specified acceptance criteria
  • Gaining sufficient knowledge to successfully complete the CSWIP 3.0 Visual Welding Inspector examinations.
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