Course Duration: 5 Days (40 Hours)
Ultrasonic Testing - Level I, Classroom NDT training course is developed to meet the requirements of ASNT SNT-TC-1A, CP -189 and other equivalent standards and customer specific written practice for training and certification in this method of Non Destructive Testing personnel.
After completion of Ultrasonic Testing - Level I classroom training course you will get in depth knowledge of Ultrasonic Testing principles, sound waves, and attenuation of sound, transducers, equipment and application of Ultrasonic Testing techniques to test various product forms.
Training Examination & Certification Requirement:
During this Ultrasonic Testing Level I classes you will give examination in General theory, Specification and Practical. You are required to successfully pass these three examinations with minimum of 70% grading in each examination and average grading of all three examination should be 80% minimum as per the requirement of ASNT SNT-TC-1A 2011.
OJT Hours: As per requirements of ASNT SNT-TC-1A, you need to have minimum of 210 Hours on-job training (OJT) after completion of training classes for certification in this method.
Basic Principle of Ultrasonic Testing
In the ultrasonic testing method high-frequency sound waves transmitted into a material to detect the imperfections or to locate changes in material properties. The most commonly used ultrasonic testing technique is pulse echo, wherein sound is introduced into a test object and reflections (echoes) are returned to a receiver from internal imperfections or from the part's geometrical surfaces.
· Wave modes
· Acoustic Impedance
· Reflection and Refraction
· Wave interaction & Interference UT I - A Scan
· Piezoelectric Transducer
· Ultrasonic Pulsar and Receiver
· Attenuation of sound
· Major Variables in Ultrasonic Testing
· Test Blocks and Instrument Calibration
· Straight Beam Testing
· Code and Standard
Hands on Training (Practical) Outlines:
· Range Calibration
· Resolution Check
· Dead Zone Check
· Velocity Comparison
· Attenuation Check
· Sensitivity Calibration
· DAC Plotting
· Linearity Check
· Corrosion Mapping
· Flaw Sizing
. Flaw Interpretation and Evaluation
Training Course material is supplied at the start of training and divided into different sections followed by practice worksheets and quizzes. Training books also include some referencing code & specifications for examination procedure and for acceptance.
Referencing Code and Standards
· ASTM SA 578 – Straight Beam Ultrasonic Examination of plain and clad steel
· ASTM E 0797 – Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
· ASTM SA 435 – Straight Beam Examination of steel plate