A Quick Guide to Welding and Weld Inspection

- Foreword by Series Editor - Introduction - A 10 Minute Guide - 1 What is the difference between the main welding processes? (four minutes) - 2 Why use welding symbols? (one minute) - 3 What are codes and standards? (one minute) - 4 What is welding procedure qualification? (one minute) - 5 Why does a welder need qualification? (one minute) - 6 What are welding defects? (two minutes) - Chapter 1: Abbreviations, Terminology and Welding Symbols - Abbreviations - Common terms - Joint terminology - Weld terminology - Drawing rules and weld symbols - Chapter 2: Duties of a Welding Inspector - Before welding - During welding - After welding - Repairs - Chapter 3: Analysis of a Fusion Weld - Components of a welded joint - What makes a good fusion weld? - Weld joint: preparation methods - Weld joint: shape - Residual stress and distortion - Minimising stresses and distortion - Chapter 4: Materials and Their Weldability - Carbon equivalency - Classification of steels - Alloying elements - Material properties - Heat treatment of steels - Chapter 5: Welding Processes - Manual metal arc (MMA)/shielded metal arc welding (SMAW) - Metal inert gas (MIG)/metal active gas (MAG)/gas metal arc welding (GMAW) - Flux-cored arc welding (FCAW) - Tungsten inert gas (TIG)/gas tungsten arc welding (GTAW) - Submerged arc welding (SAW) - Chapter 6: Non-destructive and Destructive Testing - Liquid penetrant testing (PT) - Magnetic particle testing (MT) - Ultrasonic testing (UT) - Radiographic testing (RT) - Tension tests - Bend tests - Charpy tests - Hardness testing - Macro samples - Micro samples - Fillet fracture test - Butt weld fracture test (nick break) - Chapter 7: Fracture Modes and Welding Defects - Imperfection categories - Hydrogen-induced cold cracking (HICC) - Solidification cracking - Reheat cracking - Lamellar tearing - Weld decay - Porosity - Solid inclusions - Lack of fusion - Incomplete root penetration - Root concavity - Excessive root penetration - Overlap - Underfill - Undercut - Crater pipe - Burn-through - Root oxidation - Arc strike - Spatter - Magnetic arc blow - Chapter 8: Codes, Standards and Documentation - Codes and standards - The PED and UK PER - Welding procedure qualifications - Procedure qualification record (PQR) - Welding procedure specification (WPS) - Welder qualifications - Chapter 9: Health and Safety - Health and Safety at Work Act - Electrical safety - Welding/cutting process safety - Personal protective equipment (PPE) - Gases and fumes - COSHH and workplace exposure limits (WEL) - Lifting equipment/pressure system requirements - Hand tools and grinding machines - Other precautions before welding starts - Causes of accidents - Permit-to-work - Tanks and drums - Index