The Welding Of Aluminium And Its Alloys

by Mathers

• ISBN13: 9781855735675
• ISBN10: 1855735679
• Format: Hardcover
• Copyright: 2002-09-24
• Publisher: Elsevier Science

Summary

The welding of aluminum and its alloysis a practical user's guide to all aspects of welding aluminum and aluminum alloys. It gives a basic understanding of the metallurgical principles involved and is intended to provide engineers a concise and effective reference to the subject. It covers weldability of aluminum alloys; process descriptions; proposed weld parameters; health and safety issues; preparation for welding, quality assurance and quality control issues.

Table of Contents

Preface	p. ix
Introduction to the welding of aluminium	p. 1
Introduction	p. 1
Characteristics of aluminium	p. 4
Product forms	p. 6
Welding: a few definitions	p. 6
Welding metallurgy	p. 10
Introduction	p. 10
Strengthening mechanisms	p. 10
Aluminium weldability problems	p. 18
Strength loss due to welding	p. 31
Material standards, designations and alloys	p. 35
Designation criteria	p. 35
Alloying elements	p. 35
CEN designation system	p. 36
Specific alloy metallurgy	p. 40
Filler metal selection	p. 46
Preparation for welding	p. 51
Introduction	p. 51
Storage and handling	p. 51
Plasma-arc cutting	p. 52
Laser beam cutting	p. 58
Water jet cutting	p. 63
Mechanical cutting	p. 64
Cleaning and degreasing	p. 66
Welding design	p. 69
Introduction	p. 69
Access for welding	p. 70
Welding speed	p. 71
Welding position	p. 72
Edge preparation and joint design	p. 72
Distortion	p. 84
Rectification of distortion	p. 88
Fatigue strength of welded joints	p. 89
TIG welding	p. 97
Introduction	p. 97
Process principles	p. 97
Mechanised/automatic welding	p. 114
TIG spot and plug welding	p. 115
MIG welding	p. 116
Introduction	p. 116
Process principles	p. 116
Welding consumables	p. 130
Welding procedures and techniques	p. 135
Mechanised and robotic welding	p. 141
Mechanised electro-gas welding	p. 143
MIG spot welding	p. 144
Other welding processes	p. 147
Introduction	p. 147
Plasma-arc welding	p. 147
Laser welding	p. 150
Electron beam welding	p. 155
Friction welding	p. 160
Resistance welding processes	p. 166
Introduction	p. 166
Power sources	p. 167
Surface condition and preparation	p. 169
Spot welding	p. 171
Seam welding	p. 175
Flash butt welding	p. 176
Welding procedure and welder approval	p. 181
Introduction	p. 181
Welding procedures	p. 181
Welder approval	p. 191
Weld defects and quality control	p. 199
Introduction	p. 199
Defects in arc welding	p. 199
Non-destructive testing methods	p. 205
British and ISO standards related to welding and aluminium	p. 216
Physical, mechanical and chemical properties at 20[degree]C	p. 226
Principal alloy designations: cast products	p. 227
Alloy designations: wrought products	p. 228
Bibliography	p. 230
Index	p. 235
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