How to interpret Acceptance Criteria for Ultrasonic Testing as per AWS D1.1
The Requirements of Ultrasonic Flaw detector equipment as per AWS D1.1 Structural Steel Welding code is given below:
Equipment:
The ultrasonic equipment’s shall be pulse echo type ‘A’ scan suitable for use with transducers…
Range and Sensitivity Setting for Ultrasonic testing
Setting of range and sensitivity shall be carried out prior to each testing in according to this procedure. The temprture difference between the time of range and sensitivity setting and time of test should be within ± 15°C.
Checks…
A study on the couplant effects in contact ultrasonic testing.
The primary purpose of a couplant is to provide a suitable sound path between the transducer and the test surface.Ultrasonic Testing couplants usage can be seen here
A couplant must effectively wet or totally…
This blog will discuss types of discontinuities that can be evaluated with the ultrasonic testing in NDT method.
Discontinuities can be divided into three general categories inherent, processing and service
Inherent discontinuities are usually formed when the metal is molten.
Inherent wrought discontinuities relate to the…