Need of Non-Destructive Testing

Non-Destructive testing methods is to increase customer satisfaction and lower manufacturing costs. Non-destructive tests use to detect variations in structure, minute changes in surface finish, the presence of cracks or other physical discontinuities, to measure the thickness of materials and coatings and to determine other characteristics of industrial products.

Non-destructive tests are performed:-
(1) Ensure product integrity, and reliability
(2) Prevent accidents and save human life
(3) Ensure customer satisfaction and maintain the manufacturer's reputation
(4) Control manufacturing processes
(5) Lower manufacturing costs
(6) Maintain uniform quality level

Visual examination

Visual examination is performed to check weld size and appearance. This test is perform to detect surface cracks, fusion between weld bead, gas hole, excessive undercut and more. It is used in conjunction with all other NDT methods. For visual examination required several CWI’s staff.

Visual Testing is a cost effective method used for quality control. A minimum of equipment is needed.

Many Non Destructive Testing (NDT) techniques used for the inspection of welding is surface crack detection. We shall briefly examine the two most common methods of surface crack detection, Liquid Penetrant Testing (PT), sometimes referred to as Magnetic Particle Testing (MT).

non destructive testing application

NDT(non destructive testing) is used in a variety of settings that covers a wide range of industrial activity.

• Automotive
• Powerplants
• Construction
• Structures
• Bridges
• Maintenance
• Bridges
• Manufacturing
• Machine parts
• Castings and Forgings
• Industrial plants such as Nuclear, Petrochemical, Power, Refineries, Fabrication shops, Mine processing and Risk Based Inspection programmes.
• Pressure vessels
• Storage tanks
• Welds
• Boilers
• Heat exchangers
• Turbine bores
• In-plant Piping
• Pipelines
• Pipeline integrity
• Leak Detection
• Railways
• Rail Inspection
• Wheel Inspection