Advantages and Disadvantages of Non Destructive Testing

Non Destructive Testing methods, Advantages and Disadvantages?

Advantages and Disadvantages of Non Destructive Testing 

What are the advantages and disadvantages of non-destructive testing? Non-destructive testing (NDT) offers a safe and reliable way of inspecting components, that is cost effective and requires little to no disruption to workers or machinery.  

It means that plant and factory operations can continue working without any damage to equipment, or any loss of income to the company. This type of testing is used primarily to detect, identify and measure anything that could cause damage to a component such as cracks or corrosion.  

Non-destructive testing is a means of testing a component without causing any detriment to it, and it therefore requires the use of a qualified technicians who are expert in their field. Format NDT are able to help with any form of non-destructive testing.  

The Advantages of Non-destructive Testing 

Non-destructive testing has been in existence for longer than many people assume. The first proper non-destructive testing technique was developed in the very late stages of the nineteenth century, when X-Rays were invented by a German physicist named Wilhelm Conrad Rontgen.  

Of course, the oldest form of non-destructive testing is visual testing, a means of simply inspecting a component for surface flaws by sight alone. This is still a common, and very effective procedure today, carried out by skilled technicians who know exactly what to look for in a component.  

Many people forget that this is a form of non-destructive testing, as it is of course, a means of examining something without causing any detriment to it. In this case, a patient, who may or may not have an illness.  

Now, well over a century later a whole host of other non-destructive testing techniques have been developed. These include: 

  • Magnetic particle testing (MT) 
  • Liquid penetrant testing (LT) 
  • Acoustic emission testing (AT) 
  • Eddy current testing (ET) 
  • Ultrasonic testing (UT)  
  • Visual testing (VT)  
  • Radiographic testing (RT) 

There are four main advantages of non-destructive testing:  

 Safety issues can be identified 

Non-destructive testing is used to ascertain whether or not a component is in need of repair, and whether it is safe to use.  

The tests are carried out to ensure product safety, and also to make sure the person carrying out the work on any machinery or components is safe too.  

Most non-destructive tests are harmless to humans, although tests involving radiographics must be carried out under strict settings. All tests must ensure that products are left completely undamaged.  

Non-destructive testing carried out professionally has the ability to save lives. Particularly if it is being carried out in industries which rely on volatile or high-pressure equipment and machinery.  

It’s main aim, when used properly, and the results of the tests accurately acted upon is to identify and resolve problems that could otherwise be disastrous.  

It provides reliability 

If workers in industry want reliable and accurate results, non-destructive testing will offer stability.  

Any given piece of equipment or machinery can undergo a range of non-destructive tests which will remove the risk of any inaccuracy of result, or oversight.  

It is cost effective 

Different types of industry work to different safety standards and need to comply to a range of rules and regulations.  

Machinery will need to be inspected at different intervals, because of this. Non-destructive testing will always be the most affordable option in terms of inspecting and looking after equipment.  

These types of tests can also give insights that can result in the effective replacement or repair of components or equipment before a real malfunction or breakdown occurs, which will save more money in the long term.  

It offers reassurance 

Reassurance is such a simple thing, but it can sometimes be the most important advantage to non-destructive testing.  

If a plant or factory know that their machinery is A1 and running as it should be, it can provide all the stability, reassurance and peace of mind that you need. Knowing that procedures are in place to make sure that testing is carried out on a regular basis can also give an added layer of security.  

When workers know they are safe, they feel more secure and this is something that can benefit productivity and output, overall.  

The Disadvantages of Non-destructive Testing 

The disadvantages of non-destructive testing are few and far between. Depending on the type of non-destructive testing used on a component minor issues can crop up. These can include simple factors like: 

  • Components needing to be cleaned before and after inspection  
  • Sensitivity of inspection can sometimes be affected by the finish of a component.  
  • Sometimes there might be a lack of depth sizing 
  • On some non-destructive test methods, only relatively non-porous surfaces can be inspected 
  • Some test methods require electricity 
  • Some can also be affected by variations in magnetic permeability  
  • Some tests are only effective on materials that are conductive 

Contact Format NDT For Your Non-Destructive Testing Needs 

Offering a full range of non-destructive testing services, Format NDT are experts in ultrasonic and radiographic inspection. However, our range of non-destructive testing capabilities extends much further than this and we also offer: 

  • Liquid penetrant testing 
  • Ferrite testing 
  • Visual inspection/Replication NDT  

We’d be happy to talk to you about these and all the other options we offer too.  

Over the years we have worked with many large multi-national companies, completing many non-destructive testing tasks. The experience and feedback that our skilled team of technicians has acquired over the years benefits our customers daily. Choosing Format NDT means you’ll get a reliable, experienced and high quality service from workers who truly understand how complex the various industries you’re working with, are.  

We’ll work to provide the information and results you need as quickly as possible and keep you informed at every stage of the non-destructive testing process. The wealth of experience we have means we can offer non-destructive testing to a range of different industries.