AWS Certified Welding Inspector — FundamentalsInspector Duties and ResponsibilitiesMedium
During a pre-weld inspection, a CWI observes that the filler metal being used is stored in an open container in a high-humidity environment. The welding procedure specification (WPS) explicitly requires low-hydrogen electrodes to be stored in a heated oven at 250°F (121°C). What is the CWI's immediate and primary responsibility in this situation?
- ADocument the observation and allow welding to proceed, noting the deviation for a post-weld review.
- BPerform a visual inspection of the filler metal for obvious signs of moisture absorption before allowing use.
- CInstruct the welding operator to immediately cease operations until the filler metal storage issue is rectified.
- DNotify the project manager and request a formal deviation request to be submitted for approval.
Show answer & explanationAnswer & explanation
Correct answer: C. Instruct the welding operator to immediately cease operations until the filler metal storage issue is rectified.
The CWI's primary responsibility is to ensure compliance with the WPS and prevent defective work. Improper storage of low-hydrogen electrodes can lead to hydrogen-induced cracking, a critical defect. Halting operations is necessary to prevent potential defects.
Why the other options are wrong
- A. Allowing welding to proceed despite a known violation of the WPS, especially one critical to weld integrity, is a dereliction of duty.
- B. Visual inspection alone is insufficient to determine moisture absorption in low-hydrogen electrodes, which often requires specific testing or adherence to storage protocols.
- D. While notifying the project manager may be a subsequent step, the immediate priority is to stop the non-compliant work to prevent defects.
CWI Pre-Weld Responsibility
A CWI's pre-weld responsibilities include verifying compliance with the WPS regarding materials, equipment, and procedures before welding commences.
- Verify material specifications and storage.
- Check equipment calibration and functionality.
- Confirm welder qualification and procedure adherence.
Memory trick: When something's wrong, Stop, Check, and Correct before it gets worse.