Quick Guide to Welding and Weld Inspection

ISBN-13: 9781845696412 / Angielski / Miękka / 2009 / 160 str.

Opis

A concise and accessible guide to the knowledge required to fulfil the role of a welding inspector. In covering both European and US-based codes, the book gives those wishing to gain certification in welding inspection a basic all-round understanding of the main subject matter.

• A concise and accessible guide to the knowledge required to fulfil the role of a welding inspector
• Covers both European and US-based codes
• Gives those wishing to gain certification in welding inspection a basic all-round understanding of the main subject matter

Spis treści

• 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