What is Non-Destructive Testing?

June 29, 2017

Non-Destructive Testing (NDT) is the examination of an object or material with technology that does not affect its future usefulness. NDT can be used without destroying or damaging a product or material. As it allows inspection without interfering with a product's final use, NDT provides an excellent balance of quality control and cost-effectiveness.

The term "NDT" includes many methods that can:
· Detect internal or external imperfections
· Determine structure, composition or material properties
· Measure geometric characteristics

NDT can and should be used in any phase of a product's design and manufacturing process, including materials selection, research and development, quality assurance and production. 

Different Types of NDT Methods

  • Resonant Inspection (RI)

  • Radiography X-ray (RT)

  • Magnetic Particle Testing (MPI)

  • Ultrasonic Testing (UT)

  • Electromagnetic Eddy Current (ET)

  • Acoustic Emission Testing (AE)

  • Liquid Penetrant Testing (PT)

  • Optical Testing

  • Visual Inspection

Traditional NDT Technique Comparison


NDT-RAM™ is short for Resonant Acoustic Method Nondestructive Testing.  NDT-RAM is Resonant Inspection (RI) for nondestructive detection of structural differences in parts.

Industries that benefit from NDT-RAM:

  • Aerospace

  • Automotive

  • Medical

  • Consumer

  • Commercial

  • Construction

  • Marine

  • Military 

Manufacturers that benefit from NDT-RAM:

  • Powder Metal

  • Powder Injection Molding (PIM)

  • Metal Injection Molding (MIM) 

  • Iron Casting

  • Ductile & Malleable Iron

  • Aluminum Foundry

  • Forged Metal

  • Ceramic

  • Metal Bonding

  • Composites

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