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Welding Task Group: Topical Report

Welding Task Group: Topical Report. November 7, 2013. Status. Task group initiated in November 2011. Steering Committee requested a summary report in July 2013. Summary report deemed to be a useful document containing timely information. Topical report developed from summary report:

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Welding Task Group: Topical Report

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  1. Welding Task Group:Topical Report November 7, 2013

  2. Status • Task group initiated in November 2011. • Steering Committee requested a summary report in July 2013. • Summary report deemed to be a useful document containing timely information. • Topical report developed from summary report: • Includes only key issues and recommendations. • Does not include background research, detailed explanations, or additional documentation. • Reviewed and approved by Steering Committee.

  3. Topical Report Content 5 Key Issues: • Need to eliminate inconsistencies between codes and standards in procedure and welder qualifications. • “Why do we need to repeatedly requalify to prove what we already know? • Why must we substantially repeat a test to meet the minor nuances of different codes?” • Need personnel certification of Welding Engineers. • There are serious gaps within the United States (U.S.) system for certification and training of personnel.

  4. Topical Report Content 5 Key Issues - continued: • Need qualification route for Welding Supervisors/Welding Coordinators. • Many Welding Supervisors/Welding Coordinators do not have a welding background and would have difficulty in achieving PE or CWEngregistration - need a training and certification route. • Need to make better use of the inspection capabilities of phased array technology. • Need to make repair decisions based on fitness-for-service assessments. • Many repair decisions are based on appearance by visual testing and nondestructive examination (NDE) results, and unnecessary repairs often introduce additional damage that can cause later failures during service. • Switching to repair decisions based on quantitative engineering calculations (e.g., fracture mechanics) rather than workmanship standards (e.g., appearance) would result in only necessary repairs being made and provide a quantitative measure of expected performance, rather than just accept/reject.

  5. Topical Report Content 5 Recommendations: • Harmonize procedures and welder qualifications. • Develop a strong liaison between the AWS B2 committee (which is well aligned with ASME Section IX) and the AWS D1 committee so their welding procedure philosophies and requirements could be as similar as possible or, ideally, be identical. • Develop new standardized welding procedures and expand the scope of existing proceduresso that individual companies do not need to develop their own procedures. • Develop uniform (maybe even standardized) procedures for welder qualification,so that one approach works for both ASME and AWS codes. • Responsible parties: ASME BPVC Section IX and AWS B2.1 and D1 committees

  6. Topical Report Content Recommendations - continued: • Expand the options for welding engineer certification within the U.S. • Responsible party: AWS • Expand the personnel certification of welding supervisors. • Responsible party: AWS • Expand the allowed application of phased array Ultrasonic testing (PAUT) inspection within codes. • Responsible parties: AWS D1 committees and the Electric Power Research Institute (EPRI), with input from the phased array equipment developers and suppliers • Make more repair decisions based on fitness‐for‐service assessments. • Responsible parties: AWS and ASME

  7. Many thanks to Tom Siewert and the Welding Task Group for their diligence in pursuing this topic and for their flexibility in delivering a topical report within a compressed timeframe.

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