Post-Welding & Final Inspection Visual & Dimensional Checks: Perform visual inspections for cracks, porosity, undercut, and incomplete fusion, and measure throat/leg sizes using gauges, calipers, and micrometers. Key Responsibilities Pre-Welding Stage Verify Materials: Check base metals, filler metals, and welding consumables against Material Test Reports (MTRs) and Welding Procedure Specifications (WPS).