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Non-destructive testing (NDT)

Non-destructive testing (NDT)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Non- Destructive Testing Critical thinking essay as being professional engineer answer 2. Rank all kinds of NDT from the most expensive to the cheapest. 3. What is the most used NDT process in the industry? Check the guide below
Introduction Non-destructive testing (NDT) is a mechanism used by engineers to detect defects in materials and structures, either during manufacturing or while in service. Typically, the methods used are ultrasonics, radiography, magnetic particle, eddy current, dye penetrant and visual methods. This important and growing industry is involved in applying these proven techniques and procedures to the full range of engineering structures. When NDT is deployed to best effect as part of the complete engineering design process, it ensures the safe, reliable and long-lasting integrity of structures, such as power stations, aircraft, oil & gas installations and other safety-critical plant. Every day, more than 25,000 inspections are carried out in factories and on-site in the UK to detect defects and damage in a huge range of products, plant and structures; it is estimated that there are more than 120,000 inspectors operating worldwide
Transcribed Image Text:Introduction Non-destructive testing (NDT) is a mechanism used by engineers to detect defects in materials and structures, either during manufacturing or while in service. Typically, the methods used are ultrasonics, radiography, magnetic particle, eddy current, dye penetrant and visual methods. This important and growing industry is involved in applying these proven techniques and procedures to the full range of engineering structures. When NDT is deployed to best effect as part of the complete engineering design process, it ensures the safe, reliable and long-lasting integrity of structures, such as power stations, aircraft, oil & gas installations and other safety-critical plant. Every day, more than 25,000 inspections are carried out in factories and on-site in the UK to detect defects and damage in a huge range of products, plant and structures; it is estimated that there are more than 120,000 inspectors operating worldwide
Kinds of Non-Destructive Testing Visual and Optical Testing Visual testing is the most widely used method of non-destructive testing (NDT). Even the more sophisticated methods require a visual test to be performed. In other methods, such as magnetic particle testing, after a component has been magnetised, the operator performs a visual inspection to look for indications. Large sections of industry tend to take visual testing for granted and pay little attention to training. Ultrasonic Testing Ultrasonic testing is a versatile non-destructive testing (NDT) method. Many techniques have been developed to allow full volumetric inspection of a large range of components made from a wide variety of materials. It is probably the most important method used in industry, certainly in the UK. Radiographic Testing Radiography was one of the earliest NDT methods but, due in some way to health and safety implications, alternative methods are replacing it, for some applications, in industry. However, radiography remains one of the two main volumetric NDT methods. Eddy Current Testing Eddy current testing is a sophisticated method of non-destructive testing (NDT) in which shallow swirling electric eddy currents are introduced into a component, allowing the detection of surface and slightly sub-surface discontinuities. Magnetic Particle Testing Magnetic particle testing is a relatively simple non-destructive testing (NDT) technique that can be used in the detection of surface and slight sub-surface discontinuities in magnetic materials. Penetrant Testing Penetrant testing is a simple non-destructive testing (NDT) method used to locate surface-breaking discontinuities in metals and many non-metals using a penetrating liquid. Thermal and Infrared Testing Thermal and infrared testing is a relative newcomer to the world of non-destructive testing (NDT). It involves monitoring the temperature variations of objects in the infrared portion of the electromagnetic spectrum.
Transcribed Image Text:Kinds of Non-Destructive Testing Visual and Optical Testing Visual testing is the most widely used method of non-destructive testing (NDT). Even the more sophisticated methods require a visual test to be performed. In other methods, such as magnetic particle testing, after a component has been magnetised, the operator performs a visual inspection to look for indications. Large sections of industry tend to take visual testing for granted and pay little attention to training. Ultrasonic Testing Ultrasonic testing is a versatile non-destructive testing (NDT) method. Many techniques have been developed to allow full volumetric inspection of a large range of components made from a wide variety of materials. It is probably the most important method used in industry, certainly in the UK. Radiographic Testing Radiography was one of the earliest NDT methods but, due in some way to health and safety implications, alternative methods are replacing it, for some applications, in industry. However, radiography remains one of the two main volumetric NDT methods. Eddy Current Testing Eddy current testing is a sophisticated method of non-destructive testing (NDT) in which shallow swirling electric eddy currents are introduced into a component, allowing the detection of surface and slightly sub-surface discontinuities. Magnetic Particle Testing Magnetic particle testing is a relatively simple non-destructive testing (NDT) technique that can be used in the detection of surface and slight sub-surface discontinuities in magnetic materials. Penetrant Testing Penetrant testing is a simple non-destructive testing (NDT) method used to locate surface-breaking discontinuities in metals and many non-metals using a penetrating liquid. Thermal and Infrared Testing Thermal and infrared testing is a relative newcomer to the world of non-destructive testing (NDT). It involves monitoring the temperature variations of objects in the infrared portion of the electromagnetic spectrum.
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