AWS Certified Welding Inspector — FundamentalsInspector Duties and ResponsibilitiesEasy
A CWI is conducting a pre-weld inspection on a structural steel component. The Welding Procedure Specification (WPS) specifies a joint design with a 3/16 inch root opening. During the inspection, the CWI measures the actual root opening to be 1/4 inch. According to AWS D1.1 Structural Welding Code - Steel, what is the appropriate action for the CWI to take?
- ADocument the deviation but allow welding to proceed, noting it for post-weld review.
- BConsult the welder to see if they can compensate for the larger root opening.
- CApprove the joint as is, as the difference is minor and will be accommodated by the welding process.
- DReject the joint and require adjustment to meet the specified root opening tolerance.
Show answer & explanationAnswer & explanation
Correct answer: D. Reject the joint and require adjustment to meet the specified root opening tolerance.
AWS D1.1 specifies tolerances for joint dimensions. A deviation from the specified root opening outside of these tolerances requires corrective action before welding can proceed. The CWI's role is to ensure adherence to the WPS and applicable codes.
Why the other options are wrong
- A. Documenting without requiring correction is insufficient; the deviation must be addressed before welding.
- B. Consulting the welder is not the CWI's primary action; the CWI must ensure compliance to the WPS.
- C. Approving a non-conforming joint violates code requirements and can lead to weld defects.
Pre-Weld Joint Dimensional Compliance
Ensuring that joint dimensions, such as root opening, groove angle, and fit-up, conform to the requirements of the Welding Procedure Specification (WPS) and applicable codes before welding commences.
- Critical for achieving sound welds.
- Prevents potential defects like lack of fusion or excessive distortion.
- Must be verified by the CWI or qualified personnel.
Memory trick: Measure twice, weld once, or it's a code violation.