Non-destructive testing (NDT) allows us to assess the integrity and quality of a casting without damaging the finished component. It helps identify potential defects, verify compliance with specified requirements and provide confidence that a component is suitable for its intended application.
At AATi, we take a technical, application-led approach to inspection and testing. We work with you to understand the critical requirements of your component, the consequences of potential defects and the relevant acceptance criteria. From there, we can advise on the most appropriate testing methods to provide the required level of assurance.
Key non-destructive testing methods
- Visual Testing (VT) — Examines accessible surfaces for visible defects, including surface discontinuities, cracks and imperfections.
- Dye Penetrant Testing (PT) — Identifies surface-breaking defects by drawing a visible or fluorescent penetrant into discontinuities in non-porous materials.
- Magnetic Particle Testing (MT) — Detects surface and near-surface defects in ferromagnetic materials using magnetic fields and fine magnetic particles.
- Radiographic Testing (RT) — Uses X-rays or gamma rays to reveal internal discontinuities, such as porosity, inclusions and certain forms of shrinkage, within a casting.
- Ultrasonic Testing (UT) — Uses high-frequency sound waves to identify internal discontinuities and assess material integrity, where the material and geometry are suitable for the method.
- Eddy Current Testing (ET) — Uses electromagnetic induction to identify surface and near-surface discontinuities in electrically conductive materials.
The right inspection for your application
No single testing method is suitable for every casting or every type of defect. The choice depends on the alloy, component geometry, section thickness, likely defect types and the level of assurance required. Some methods assess surface integrity, while others can investigate internal features.
Our role is to help you establish an appropriate inspection strategy from the outset. We can advise on suitable testing methods, relevant industry standards, acceptance criteria and inspection requirements, ensuring that the approach reflects the component’s intended function and the risks associated with its use.
Where required, testing can be specified at key stages of manufacture or as part of final inspection, with appropriate reporting to support quality assurance and traceability. Testing is selected and carried out in accordance with the applicable requirements, using suitably qualified personnel and appropriate specialist facilities.
Your specification defines the requirements. Our technical expertise helps identify the right way to verify them.
Published technical details may be subject to revision. Contact the foundry to confirm current specifications and material availability for your project.
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