Monitoring manufacturing processes with non-destructive testing (NDT)
Incorporate non-destructive testing (NDT) into your manufacturing oversight to facilitate quality assurance and documentation for the materials, objects, and structures you deliver to your customers.
Non-destructive testing offers you the greatest insight into your manufacturing process and product quality, allowing you to guarantee and document compliance with internal and customer-supplied standards and requirements.
Our NDT-based manufacturing oversight services can help you to:
- Comply with established requirements and standards
Manufacturers of materials, objects, and structures are often subject to a variety of quality assurance requirements. These may include acceptance and rejection criteria set by customers or regulatory agencies in standards that your products must meet.
- Reduce the risk of manufacturing defects
By continuously monitoring the quality of your products using NDT, you can fix any issues that occur in the blink of an eye. This helps you to avoid customer complaints, unnecessary waste, and the need to dispose of defective products.
- Document product quality and uniformity
You may additionally be subject to internal or customer-supplied requirements for product quality and uniformity. Uniformly high quality is often a point of competition for manufacturers, so your ability to document this credibly and impartially is critical.
- Inspect welds and joints
Whether you manufacture objects, systems, or structures, there are often critical points that can impact properties related to safety and product lifetimes. Typical examples include joints like welds, which can become weak points if defects occur in them during manufacturing.
Flexible, NDT-based manufacturing process control tailored to your operationLooking at a product from the outside may not be enough to tell if it was manufactured or welded correctly. Non-destructive testing lets us look inside a product or weld to determine whether it meets agreed-upon standards or requirements.
We adapt our inspection services to your needs based on a variety of parameters. This means that we choose approaches and methods based on such factors as materials, construction, and accessibility, as well as based on customer-supplied or government-mandated documentation requirements you may be subject to.
NDT encompasses various non-destructive testing methods
NDT stands for non-destructive testing. We use all recognised NDT methods, including manual, automated, and advanced methods. Our comprehensive library of testing equipment enables us to use such non-destructive testing methods as
- visual inspection
- X-ray inspection
- ultrasonic testing
- vortex inspection
- penetrant inspection
- magnet inspection
- phased array
- digital radiography
- ToFD (Time of Flight Diffraction)
- 3D MFL (Magnetic Flux Leakage).
NDT is commonly used to inspect metals, concrete, polymers, and composites in industries ranging from energy generation and transportation to pharmaceutical and food manufacturing.
In addition to manufacturing process control, we also use NDT to inspect objects, systems, and structures that are already in operation. Condition monitoring using NDT methods gives you insight into the condition of your system, so you know what to do to extend its lifetime.
NDT methods - what are the most common NDT methods?
Ultrasonic testing (UT)
Ultrasonic testing is one of the most widely used non-destructive testing (NDT) methods. When ultrasound is sent through an object, the inspector assesses the reflections that come back and can deduce from this whether there are defects in the object.
Ultrasound testing can be performed both manually and automated, and is often used to:
- check cracks
- detect casting and rolling defects
- measure material thickness
- detect corrosion or erosion.
Eddy Current Testing (ET)
Eddy Current testing is an electromagnetic test method that can be used on all electrically conductive materials. It can also be used on painted and coated surfaces, as well as under water.
Eddy current testing is mainly used to:
- check welds
- find cracks
- measure material thickness
- measure corrosion thickness
- measure the thickness of the coating or coating
- detect heat-affected zones.
Penetrant Testing (PT)
Penetrant testing is used to find surface defects in fx machined, cast or welded items. When the item is cleaned, the NDT inspector applies the penetrant liquid, and fluorescent color indicates whether the item has surface defects such as:
Magnetic Particle Testing (MT)
Magnetic particle testing is used on ferromagnetic objects such as iron, nickel, ferritic steel and cobalt. Metal powder is applied to an item, and when the item is magnetized, the metal powder will collect where there is a flaw in the item.
Examples of errors include:
- welding defects
- binding defects
Visual Testing (VT)
Visual inspection is most often the first form of NDT to be performed. The method is widely used in the maintenance of machines and production facilities.
The inspector looks for visible faults such as:
- insufficient cleaning
- signs of wear, cracks and breaks
- erosion and deformation.
Radiographic testing (RT)
Radiographic testing is also called X-ray testing and is often used to examine internal defects in welds or in cast items.
The method can also be used to locate:
- surface defects
Rope Access – Industrial climbing
Rope access is used in situations where it is difficult to inspect the item or construction either due to height or in hard-to-reach spaces. There are both time and financial advantages because it is not necessary to use scaffolding and cranes.