WPS, PQR, and WPQ – If you're working in welding, QA/QC, or fabrication, you've definitely heard the terms WPS, PQR, and WPQ. But many new engineers get confused about how they all connect. Let me simplify it: 🧪 PQR – Procedure Qualification Record This is the test we conduct to see if a welding method works. It includes test results like mechanical properties and NDT reports. It's the backbone of everything else. 📄 WPS – Welding Procedure Specification This is the instruction sheet for the we