The welding of aluminium and its alloys

Gene Mathers0849315514, 9780849315510, 1855735679, 9781855735675

A practical user’s guide to all aspects of welding aluminum and aluminum alloys. Provides a basic understanding of the metallurgical principles involved showing how alloys achieve their strength and how the process of welding can affect these properties.

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Table of contents :
Front Matter……Page 1
Preface……Page 4
Table of Contents……Page 0
Back Cover……Page 5
Table of Contents……Page 6
1.1 Introduction……Page 9
1.2 Characteristics of Aluminium……Page 12
1.4 Welding: A Few Definitions……Page 14
2.2 Strengthening Mechanisms……Page 18
2.3 Aluminium Weldability Problems……Page 26
2.4 Strength Loss Due to Welding……Page 39
3.2 Alloying Elements……Page 43
3.3 CEN Designation System……Page 44
3.4 Specific Alloy Metallurgy……Page 48
3.5 Filler Metal Selection……Page 54
4.2 Storage and Handling……Page 59
4.3 Plasma-Arc Cutting……Page 60
4.4 Laser Beam Cutting……Page 66
4.5 Water Jet Cutting……Page 71
4.6 Mechanical Cutting……Page 72
4.7 Cleaning and Degreasing……Page 74
5.1 Introduction……Page 77
5.2 Access for Welding……Page 78
5.3 Welding Speed……Page 79
5.5 Edge Preparation and Joint Design……Page 80
5.6 Distortion……Page 92
5.7 Rectification of Distortion……Page 96
5.8 Fatigue Strength of Welded Joints……Page 97
6.2 Process Principles……Page 105
6.3 Mechanised/Automatic Welding……Page 122
6.4 TIG Spot and Plug Welding……Page 123
7.2 Process Principles……Page 124
7.3 Welding Consumables……Page 138
7.4 Welding Procedures and Techniques……Page 143
7.5 Mechanised and Robotic Welding……Page 149
7.6 Mechanised Electro-Gas Welding……Page 151
7.7 MIG Spot Welding……Page 152
8.2 Plasma-Arc Welding……Page 155
8.3 Laser Welding……Page 158
8.4 Electron Beam Welding……Page 163
8.5 Friction Welding……Page 168
9.1 Introduction……Page 174
9.2 Power Sources……Page 175
9.3 Surface Condition and Preparation……Page 177
9.4 Spot Welding……Page 179
9.5 Seam Welding……Page 183
9.6 Flash Butt Welding……Page 184
10.2 Welding Procedures……Page 189
10.3 Welder Approval……Page 199
11.2 Defects in Arc Welding……Page 207
11.3 Non-Destructive Testing Methods……Page 213
Appendix A: British and ISO Standards Related to Welding and Aluminium……Page 224
Appendix B: Physical, Mechanical and Chemical Properties at 20°C……Page 234
Appendix C: Principal Alloy Designations: Cast Products……Page 235
Appendix D: Alloy Designations: Wrought Products……Page 236
Bibliography……Page 238
Index……Page 243