AWS Certified Welding Inspector — FundamentalsInspector Duties and ResponsibilitiesEasy
During an in-process inspection of a groove weld on a pressure vessel, a CWI observes that the welder is using a travel speed significantly faster than that specified in the Welding Procedure Specification (WPS). The voltage and amperage settings appear to be within the specified ranges. What is the CWI's immediate action?
- AAllow welding to continue, but make a note in the inspection report for further review.
- BRequire the welder to immediately stop work and adjust the travel speed to comply with the WPS.
- CConsult with the welding engineer to determine if the faster travel speed is acceptable.
- DPerform a visual inspection of the completed portion of the weld to check for defects.
Show answer & explanationAnswer & explanation
Correct answer: B. Require the welder to immediately stop work and adjust the travel speed to comply with the WPS.
Travel speed is an essential variable in most welding processes, directly impacting heat input, penetration, and weld quality. Deviating from the WPS without approval makes the weld non-compliant. The CWI must ensure adherence to the WPS during welding.
Why the other options are wrong
- A. Allowing non-compliant welding to continue compromises quality and is contrary to CWI duties.
- C. Consulting an engineer is appropriate for WPS revisions, but not for addressing immediate non-compliance during welding.
- D. While visual inspection is part of the job, it doesn't address the ongoing non-compliance with WPS parameters.
In-Process WPS Adherence
Verifying that all welding parameters (e.g., travel speed, voltage, amperage) are strictly followed as prescribed in the approved Welding Procedure Specification (WPS) during the actual welding operation.
- Deviation from WPS can compromise weld quality and mechanical properties.
- CWI must monitor and enforce WPS parameters.
- Immediate correction is required for non-compliance.
Memory trick: During the weld, watch the specs, don't let the process get off track.