A Welding Procedure Specification (WPS) is a guiding document in any welding quality management program. This workshop will explore that role and guide the participants through the process of writing and qualifying a WPS that is ASME Section IX compliant, metallurgically sound, and meaningful to the welder.
A Welding Procedure Specification (WPS) is a guiding document in any welding quality management program. This workshop will explore that role and guide the participants through the process of writing and qualifying a WPS that is ASME Section IX compliant, metallurgically sound, and meaningful to the welder.
This includes live demonstrations on the welding of the coupon; test specimen location and preparation; tension, bend, and charpy testing; evaluation of the test results; and generation of the procedure qualification record(s) (PQRs) and WPS.
Topics include:
- What is a WPS?
- Why are WPSs necessary and who cares about them?
- How various industries and codes address welding procedure qualification
- Understanding qualification “variables”
- What comes first? The WPS or the PQR?
- What questions does one need to ask to develop a WPS?
- How to qualify multiple welding processes and/or filler metal classifications using a single test coupon
- When and how to amend an existing WPS to extend the qualification range(s)
- Addressing heat-input control for WPSs qualified with toughness
- Sources for reasonable and meaningful ranges for variables on the WPS
- Avoiding the common mistakes in WPS qualification
