Audit & Certification Guidance Testing & Inspection Training
TÜV AUSTRIA Websites > TÜV AUSTRIA United Kingdom > Solution > Industry > ToFD – Time of Flight Diffraction Solution: ToFD – Time of Flight Diffraction Audit & Certification Guidance Testing & Inspection Training Solution: ToFD – Time of Flight Diffraction TÜV AUSTRIA UK LTD TÜV AUSTRIA UK LTD TÜV AUSTRIA \| United Kingdom 01 Meadlake Place, Thorpe Lea Road, Egham (Visiting Address) TW20 8BF United Kingdom +44 7585 678493 Send email 01 Meadlake Place, Thorpe Lea Road, Egham (Visiting Address) TW20 8BF United Kingdom Save to My Bundle TÜV AUSTRIA UK LTD Save to My Bundle ToFD (Time of Flight Diffraction): In which region do you need this solution? All regions Accreditation UKAS – Certificate of Accreditation All accreditations "The TOFD (Time of Flight Diffraction) method is an ultrasonic testing method that is used primarily in the testing of weld seams." About ToFD (Time of Flight Diffraction): The TOFD method (Time of Flight Diffraction) is an ultrasonic testing method that is mainly used for the inspection of weld seams. While defects in the material are usually detected by analysing reflected signals, TOFD primarily uses the diffraction signals that originate from imperfections. TOFD is one of the few inspection techniques that is able to describe a defect or discontinuity relatively accurately with length, depth and height. All other ultrasonic testing methods describe an incompleteness based on the reflection behaviour and not on the real extension. Uses of ToFD Weld seam testing according to EN ISO 10863 from a wall thickness of 6 mm up to 300 mm. Testing of thick-walled pressure vessels according to the ASME Boiler and Pressure Vessel Code in Section VIII (Replaces radiographic testing as primary test method). Outside standardisation: crack depth determination and monitoring on welded structures (e.g. steel bridges) or corrosion tests as part of periodic inspections (e.g. clad pressure vessels and reactors). Here, the ultrasonic courses are simulated in advance in order to determine the optimal testing technique. Advantages of ToFD procedures Same results as with radiographic testing but the differences are: Increased testing speed No complex radiation protection measures Wall thickness range up to 300mm normatively testable without the cost-intensive use of a linear accelerator Related tags for this result: Construction & Real Estate Energy Industry Machinery Material test Metallography NDT RWP Tecnotest Time of Flight Diffraction ToFD Training Werkstoff Zerstörungsfreie Prüfung Related solutions from the same sector: Machinery Phased Array (PA) Industry Show more Save to my Bundle ASME Industry Show more Save to my Bundle Welding and WPQ Testing Industry Show more Save to my Bundle Acoustic Emission Testing – AT Industry Show more Save to my Bundle All Solutions Discover more sectors: Agriculture Automotive Certification Communications Technology Construction & Real Estate Electronics Energy Foodstuffs Health & Medicine Industry IT & Security Leisure & Entertainment Municipalities Science & Research Sports & Fitness Sustainability Tourism Trade & Commerce Transport & Traffic

TÜV AUSTRIA Websites > TÜV AUSTRIA United Kingdom > Solution > Industry > ToFD – Time of Flight Diffraction

Solution: ToFD – Time of Flight Diffraction

Audit & Certification Guidance Testing & Inspection Training

TÜV AUSTRIA UK LTD

TÜV AUSTRIA | United Kingdom

01 Meadlake Place, Thorpe Lea Road, Egham (Visiting Address) TW20 8BF United Kingdom

+44 7585 678493

Send email

ToFD (Time of Flight Diffraction):

In which region do you need this solution?

All regions

Accreditation

"The TOFD (Time of Flight Diffraction) method is an ultrasonic testing method that is used primarily in the testing of weld seams."

About ToFD (Time of Flight Diffraction):

The TOFD method (Time of Flight Diffraction) is an ultrasonic testing method that is mainly used for the inspection of weld seams. While defects in the material are usually detected by analysing reflected signals, TOFD primarily uses the diffraction signals that originate from imperfections.

TOFD is one of the few inspection techniques that is able to describe a defect or discontinuity relatively accurately with length, depth and height. All other ultrasonic testing methods describe an incompleteness based on the reflection behaviour and not on the real extension.

Uses of ToFD

Weld seam testing according to EN ISO 10863 from a wall thickness of 6 mm up to 300 mm.
Testing of thick-walled pressure vessels according to the ASME Boiler and Pressure Vessel Code in Section VIII (Replaces radiographic testing as primary test method).
Outside standardisation: crack depth determination and monitoring on welded structures (e.g. steel bridges) or corrosion tests as part of periodic inspections (e.g. clad pressure vessels and reactors). Here, the ultrasonic courses are simulated in advance in order to determine the optimal testing technique.

Advantages of ToFD procedures

Same results as with radiographic testing but the differences are:

Increased testing speed
No complex radiation protection measures
Wall thickness range up to 300mm normatively testable without the cost-intensive use of a linear accelerator