- Check Documents: Review approved drawings, industry codes (like AWS D1.1 or ASME), and Welding Procedure Specifications (WPS).
- Verify Qualifications: Confirm that all welders hold valid certifications for the specific processes they will use.
- Inspect Materials and Joint Prep: Check base metals, fit-up alignment, root gaps, bevel angles, and cleanliness of the joint.
- Check Consumables: Ensure filler metals, shielding gases, and fluxes match the WPS and are stored properly.
During Welding (In-Process Inspection)
- Monitor Parameters: Track voltage, amperage, and travel speed to make sure they match the specifications.
- Control Temperatures: Measure and record preheat and interpass temperatures.
- Oversee Workmanship: Check for proper cleaning between weld passes, correct slag removal, and the prevention of accidental arc strikes outside the joint.