Welding Codes, Inspection and Qualification

What you'll learn

• Distinguish codes, standards, specifications and recommended practices, explain how codes gain legal force, identify the edition that applies, and resolve document conflicts through the order of precedence and requests for information
• Explain how CSA W59 and CSA W47.1 govern structural welding and fabricators, apply statically and cyclically loaded requirements, and check prequalified details and minimum fillet sizes
• Describe how construction codes and ASME Section IX divide pressure work, use P-numbers, F-numbers and thickness ranges, and recognize the B31 piping codes and pipeline welding codes
• Read and control welding procedure specifications and data sheets, explain CWB acceptance and procedure qualification tests, and check that procedure ranges are supported by test records
• Determine the positions, thicknesses and diameters a welder's tests qualify, apply retest and renewal rules, and track continuity so that qualifications do not lapse
• Perform visual inspection before, during and after welding with the correct lighting and gauges, and apply visual acceptance criteria for size, profile, undercut, porosity and cracks
• Identify weld discontinuities and their causes, evaluate indications against criteria for size, accumulation and spacing, and plan repairs and cause analysis of nonconformances
• Explain and plan liquid penetrant and magnetic particle testing, including surface preparation, timing, yoke checks, field direction and the interpretation of indications
• Explain radiographic and ultrasonic testing, calculate geometric unsharpness and angle-beam geometry, compare the methods, and plan random partial examination that represents every welder
• Describe the certification of welding inspectors under CSA W178.2, inspection organizations under W178.1 and NDT personnel under CAN/CGSB-48.9712, and keep a register of certifications and vision tests
• Explain how the CWB certifies companies, welders, supervisors and engineers, how certification is kept through audits, and how to schedule every due date in the system
• Plan and carry out an internal audit of a fabricator's welding system with a random sample, handle a qualification nonconformance, find root causes and close corrective actions