目录 Chapter 1 Welding Technology Fundamental 1.1 Modern Engineering Structural Material 1.2 Mechanical Property of Metal Material 1.3 Thermophysical Property of Metal Material 1.3.1 Specific Heat 1.3.2 Thermal Expansion 1.3.3 Thermal Conductivity 1.3.4 Melting Point or Melting Range 1.3.5 Thermionic Work Function 1.4 Principal Types of Heat Treatment of Steel 1.5 Arc Physics 1.5.1 Stability of Electric Arc 1.5.2 Stability of AC Arc Chapter 2 Arc Welding Power Source 2.1 Classification of Power Source 2.1.1 AC Power Supplies 2.1.2 DC power supplies 2.1.3 Inverse Source of Arc Welding 2.2 Electrical Characteristics of Power Source 2.2.1 Constant Voltage 2.2.2 Constant Current 2.2.3 Combined Constant-Current and Constant-Voltage Characteristics 2.3 Selecting and Specifying a Power Source Chapter 3 Arc Welding Process 3.1 Shielded Metal-Arc Welding 3.2 Gas Shielded-Arc Welding 3.2.1 Specific Advantages of Gas-shielded Arc 3.2.2 Types of Gas-Shielded Arc Processes 3.2.3 Gas Tungsten Arc-Tig 3.2.4 Gas Metal Arc-Mig 3.2.5 CO2 Welding 3.2.6 Pulsed Arc Welding 3.3 Submerged Arc Welding Fundamentals of the process 3.3.1 Definition and general description 3.3.2 Principles of operation 3.4 Plasma Arc Welding 3.4.1 Keyhole Action 3.4.2 Arc Shaping 3.4.3 Operating Data 3.4.4 Applications 3.4.5 Summary Chapter 4 Other Welding Methods 4.1 Resistance Welding 4.1.1 Introduction 4.1.2 Resistance Spot Welding(RSW) 4.1.3 Projection Welding 4.1.4 Resistance Seam Welding(RSEW) 4.1.5 Upset Butt Welding 4.1.6 Flash Butt Welding 4.2 Friction Stir Welding 4.2.1 Introduction 4.2.2 Principles 4.2.3 Friction Stir Tool 4.2.4 Friction Stirring Imperfections 4.3 Laser Beam Welding 4.3.1 Introduction 4.3.2 Principles 4.3.3 Metals Welded 4.3.4 Machines 4.3.5 Parameters and Technology 4.4 Electron Beam Welding 4.4.1 Introduction 4.4.2 Principles 4.4.3 Variations 4.4.4 Equipment 4.4.5 Safety Chapter 5 Welding Metallurgy 5.1 Chemical Reactions in Welding 5.1.1 Overview 5.1.2 Gas-Metal Reactions 5.1.3 Slag-Metal Reactions 5.2 Weld Metal Solidification 5.2.1 Epitaxial Growth at Fusion Boundary 5.2.2 Nonepitaxial Growth at Fusion Boundary 5.2.3 Competitive Growth in Bulk Fusion Zone 5.2.4 Effect of Welding Parameters on Grain Structure 5.2.5 Weld Metal Nucleation Mechanisms 5.2.6 Grain Structure Control 5.3 The Microstructure and Properties of Heat-affected Zone 5.3.1 Welding Thermal Cycle 5.3.2 The Microstructure Changes in the HAZ 5.3.3 Hardness Distribution in the HAZ 5.3.4 Welding Cracks in the HAZ Chapter 6 Weldability of Material 6.1 Weldability of Material and Testing Method 6.1.1 Weldability of Material 6.1.2 Weldability Evaluation and Test Method 6.2 Weldability of low carbon steel 6.2.1 Metallurgy of the liquid weld metal 6.2.2 Solidification and solidification cracking 6.2.3 Stress intensification,embrittlement and cracking of fusion welds below the solidus 6.2.4 Lamellar tearing 6.2.5 Reheat Cracking 6.3 Weldability of Magnesium and Its Alloys 6.3.1 Alloys and Welding Procedures 6.3.2 Oxide Film Removal 6.3.3 Cracking 6.3.4 Mechanical Properties 6.3.5 Corrosion Resistance and Fire Risk Chapter 7 Residual Stresses,Distortion and Fatigue 7.1 Residual stresses 7.1.1 Development of residual stresses 7.1.2 Analysis of Residual Stresses 7.2 Distortion 7.2.1 Cause 7.2.2 Remedies 7.3 Fatigue 7.3.1 Mechanism 7.3.2 Fractography 7.3.3 S-N Curves 7.3.4 Effect of Joint Geometry 7.3.5 Effec
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