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