Manual UT (MUT) Skills Training: Advanced MUT for the detection, characterization and sizing of weld defects KNDT # 007

Summary: 

This course is for UT technicians who are preparing for a UT Practical exam, or need to refine skills left dormant due to lack of use. Most of the course is spent with a probe in hand, and the class size is strictly limited, due to the amount of direct supervision and feedback offered. Flaw Detection, Identification, and Sizing are the goals here.

Location: Flexible

Course Duration: 40 hours

Maximum number of students: 5
Candidates

Prerequisites: Formal training or certification in at least one of the following:

• UT Level I
• UT Level II

Course Fees: $2381 + GST = $2500/person

The equipment is provided FOR the student: UT Flaw Detector and Probes

• 45°, 60°, and 70° wedges
• Transducers to fit wedges, 2.25 MHz and 5 MHz
• Cables, etc.
• Rulers and magnetic rulers
• Couplant, cleaning rags
• Scientific Calculator

PPE to be provided by candidate: CSA approved work boots.

Certification: Yes. This course qualifies as 200 hours of field experience toward CGSB Certification in Ultrasonics, Level I or II.

Outline:

• Codes and Standards
  1. Procedure Review
  2. ASME
  3. CSA W59
• Calibrations
  1. DAC
  2. TCG/TVG
  3. Sensitivity
  4. Accuracy
• Mathematics for Manual UT
  1. Near Zone
  2. Trigonometry
  3. Calculate Radius as a Function of Angle
• Flaw Detection
  1. Lamination or Corrosion?
  2. Geometry or Real?
  3. Sensitivity
  4. Probe Motion
• Identify the Reflector
  1. Echo Dynamics
  2. Probe Placement and Motion
  3. Materials and Processes
• Sizing, and Advanced Sizing Techniques
  1. 6dB drop
  2. Avoiding 6dB Drop Complications
  3. Tip Diffraction
  4. Volumetric “Diameter” Calculations
• Practical Application
  1. Scan for lamination/corrosion reflectors
  2. Scan welds for various defects
  3. Use different Acceptance Criteria
  4. Draw welds and defects for reporting
• Final Exam
  1. Scan weld with at least 3 defects
  2. Identify defects
  3. Locate and size correctly
  4. Identify defect(s) correctly
  5. Create a drawing for repair reference

Upon completion of the course, technicians will have proven ability to:

• Set up DAC, TCG/TVG, as required
• Confidently Detect, Identify and Size various defects in welds
• Understand the use of Echodynamics as a method of investigating reflectors
• Understand what the UT Flaw Detector’s screen offers for investigating reflectors
• Control probe motion in order to more accurately measure reflectors
• Efficiently investigate if a signal is from corrosion or a laminatio