Total Focusing Method (TFM) Ultrasonic Testing Services

What is Total Focusing Method (TFM) Testing? 

Total Focusing Method (TFM) Testing is an advanced ultrasonic non-destructive testing (NDT) technique that provides high-resolution imaging of material defects by focusing sound energy across the entire test volume. Unlike conventional phased array ultrasonic testing (PAUT), TFM captures full matrix data and reconstructs it into detailed, real-time images that enable precise flaw characterization. 

Industries such as aerospace, oil and gas, power generation, and heavy manufacturing rely on TFM to inspect critical components where accuracy and resolution are paramount. Dexon Technology’s cutting-edge TFM solutions provide clients with reliable insight into subsurface integrity, helping to improve safety, compliance, and asset longevity. 

Common Problems and How TFM Testing Provides Solutions 

Industrial components can suffer from complex subsurface flaws that are difficult to detect or interpret using traditional methods. These include: 

• Mischaracterized or Missed Defects: Standard UT or PAUT may struggle to accurately locate or size defects in thick or geometrically complex materials. 

• Critical Weld Flaws: Subsurface inclusions, lack of fusion, or cracking in weld zones can be hard to analyze without high-resolution imaging. 

• Component Failure in Safety-Critical Applications: Without accurate detection, small defects may go unnoticed until they lead to catastrophic failure. 

TFM addresses these challenges by: 

• Providing Superior Image Resolution: Reconstructs focused images from every possible ultrasonic path to deliver unmatched clarity and accuracy. 

• Enhancing Defect Sizing and Characterization: Precisely measures depth, length, and orientation of flaws for improved evaluation and repair decisions. 

• Improving Probability of Detection: Offers a higher detection rate of small or difficult-to-spot defects, especially in welds, nozzles, and complex geometries. 

• Supporting Compliance with Evolving Standards: Meets or exceeds stringent inspection criteria from industry codes such as ASME, API, and ISO. 

Methods Used in Dexon’s TFM Testing Services 

Dexon Technology employs state-of-the-art phased array instruments and analysis software to deliver reliable TFM inspections. Our services include: 

• Full Matrix Capture (FMC): Collects data from each element in the probe, enabling complete acoustic coverage of the inspection zone. 

• Advanced Image Reconstruction: Converts FMC data into high-definition, real-time images using TFM algorithms. 

• Multi-Mode Inspection: Uses various wave modes (e.g., shear, longitudinal, mode-converted) for greater flaw characterization. 

• Combined PAUT/TFM Solutions: Integrates conventional phased array with TFM for faster scanning and targeted high-resolution analysis. 

The Dexon Difference 

Dexon Technology’s Total Focusing Method testing services deliver precision, reliability, and clarity. Our clients trust us because we offer: 

• Expert Ultrasonic Technicians: Our inspectors are certified and trained in both conventional and advanced UT, including TFM. 

• High-End Inspection Systems: We use the latest phased array and TFM-enabled equipment for accurate and efficient testing. 

• Tailored Inspection Solutions: We adapt scan plans and probe configurations to suit welds, pressure vessels, structural components, and more. 

• Real-Time Data Visualization: Clients receive immediate insights supported by detailed imaging and analysis. 

• Integration with Other NDT Methods: TFM results complement findings from other inspection tools for comprehensive asset assessment. 

Choose Dexon for Your TFM Ultrasonic Testing Needs 

With Dexon Technology, clients receive more than just advanced UT—we deliver peace of mind through reliable defect detection and reporting. Our TFM testing solutions help prevent costly failures, extend equipment life, and ensure compliance with industry standards. 

• Unmatched clarity in flaw detection and sizing 

• Industry-leading TFM methodologies for welds, nozzles, and high-stress components 

• Trusted by leading operators in energy, manufacturing, and transport sectors 

Ensure the structural integrity of your most critical assets with Dexon’s Total Focusing Method ultrasonic testing services. Contact us today to learn how we can support your inspection and quality control programs.