Unit One Basic Knowledge of Welding 1
Module 1 What Is Welding 1
Module 2 Heat Treatment of Steel 11
Module 3 Selection of Metals in Welding 17
Module 4 Effect of Welding on Structure of Steel 23
Unit Two Stresses and Cracking of Welding 33
Module 1 Stresses Occurring in Welding 33
Module 2 Welding Cracking 39
Unit Three Welding Methods 48
Module 1 Shielded Metal Arc Welding 48
Module 2 Submerged Arc Welding Fundamentals of Process 59
Module 3 CO2 Welding 66
Module 4 Gas Tungsten Arc Welding 77
Module 5 Gas Metal Arc Welding 86
Module 6 Resistance Welding 94
Unit Four Cutting 101
Module 1 Flame Cutting 101
Module 2 Plasma Arc Cutting 108
Unit Five Inspection 115
Module 1 Radiographic Examination 115
Module 2 Ultrasonic Examination 123
Module 3 Magnetic Particle Examination 128
Module 4 Penetrant Examination 137
Appendix 145
Appendix A Selective Reading Materials 145
Text One Technology of SMAW 145
Text Two Technology of Submerged Arc Welding 150
Text Three Flux-Cored Arc Welding 156
Appendix B Terms of Welding 177
Appendix C Vocabulary 190
References 198