焊接科學與工程專業(yè)英語

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 Effect of Stress Raisers
7.3.6 Effect of Corrosion
7.3.7 Remedies
7.4 Case Studies
7.4.1 Failure of a Steel Pipe Assembly
7.4.2 Failure of a Ball Mill

Chapter 8 Automation of Welding
8.1 Introduction of Automatic Welding System
8.2 Flexible Automation of Welding
8.3 ARC Welding Robots
8.3.1 Introduction
8.3.2 Robot Manipulator Configuration
8.3.3 Robot Welding Application
8.3.4 Buying a Welding Robot
8.3.5 Robot Safety
8.4 Controls for Automatic Arc Welding
8.4.1 Automatic Welding Controllers
8.4.2 Robot Controllers
8.4.3 Teaching the Robot
8.4.4 Robot Memory
8.4.5 Weld Execution
8.5 Sensors and Adaptive Control
8.5.1 Introduction
8.5.2 Contact Sensors
8.5.3 Noncontact Sensor Systems
8.6 Tooling and Fixtures

Chapter 9 Welding Quality Inspection
9.1 Welding Defects
9.1.1 Definition and Types
9.1.2 Cracks
9.1.3 Porosity
9.1.4 Solid Inclusion
9.1.5 Lack of Fusion and Inadequate or incomplete penetration
9.1.6 Imperfect Shape
9.2 Non?destructive Testing
9.2.1 Radiographic Testing
9.2.2 Ultrasonic Testing（UT）
9.2.3 Magnetic Particle Inspection（MPI）
9.2.4 Liquid Penetrant Testing（PT）
9.3 Destructive Test
9.3.1 Tension Tests
9.3.2 Bend Tests
9.3.3 Charpy Tests
9.3.4 Hardness Testing
9.4 Radiograph Interpretation
9.4.1 General Welding Discontinuities
9.4.2 Other Discontinuities
References