Current Trends in Friction Stir Welding (FSW) and Friction Stir Spot Welding (FSSW) - An Overview and Case Studies

von: Mukuna Patrick Mubiayi, Esther Titilayo Akinlabi, Mamookho Elizabeth Makhatha

Springer-Verlag, 2018

ISBN: 9783319927503 , 216 Seiten

Format: PDF, Online Lesen

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Current Trends in Friction Stir Welding (FSW) and Friction Stir Spot Welding (FSSW) - An Overview and Case Studies


 

Foreword

6

Preface

8

Acknowledgements

10

Contents

11

1 General Introduction

14

Abstract

14

1.1 Welding Process Overview

14

1.1.1 Gas Welding

15

1.1.2 Resistance Welding

15

1.1.3 High Energy Density Welding

15

1.1.4 Solid-State Welding

17

1.1.4.1 Friction Stir Welding (FSW)

17

1.1.4.2 Friction Stir Spot Welding (FSSW)

17

1.1.4.3 FSW and FSSW Joint Configurations

20

1.1.4.4 FSW and FSSW Tools

20

1.1.4.5 Tool Material

21

1.1.4.6 Areas of Applications of FSW and FSSW

22

1.1.4.7 Current State of FSW and FSSW Between Aluminium and Copper

23

1.2 Conclusions

25

References

25

2 Friction Stir Welding and Friction Stir Spot Welding of Aluminium/Copper Alloys

30

Abstract

30

2.1 Introduction

30

2.2 Solid State Welding

31

2.3 Metallurgy of the Aluminium-Copper System

31

2.4 Friction Stir Welding

32

2.5 Friction Stir Welding Between Aluminium and Copper

33

2.5.1 Microstructure Evolution and Chemical Properties

33

2.5.2 Mechanical and Electrical Properties

54

2.6 Friction Stir Spot Welding Between Aluminium and Copper

65

2.6.1 Process Parameters

68

2.6.2 Microstructural Evolution

70

2.6.3 Mechanical and Electrical Properties

72

2.7 Conclusions

74

References

75

3 Friction Stir Welding and Friction Stir Spot Welding of Similar Aluminium and Copper Alloys

79

Abstract

79

3.1 Introduction

79

3.2 Friction Stir Welding of Similar Aluminium Alloys

80

3.2.1 The Friction Stir Welding of Similar Aluminium 2xxx Series

80

3.2.2 Friction Stir Welding of Similar Aluminium 5xxx Series

91

3.2.3 Friction Stir Welding of Similar Aluminium 6xxx Series

92

3.2.4 Friction Stir Welding of Similar Aluminium 7xxx Series

97

3.3 Friction Stir Spot Welding of Similar Aluminium

99

3.3.1 Friction Stir Spot Welding of Similar Aluminium 2xxx Series

104

3.3.2 Friction Stir Spot Welding of Similar Aluminium 5xxx Series

107

3.3.3 Friction Stir Spot Welding of Similar Aluminium 6xxx Series

110

3.3.4 Friction Stir Spot Welding of Similar Aluminium 7xxx Series

112

3.4 Friction Stir Welding of Similar Copper

114

3.5 Friction Stir Spot Welding of Similar Copper Alloys

125

3.5.1 Microstructural Evolution and Weld Defects

125

3.5.2 Mechanical Properties

126

3.6 Conclusion

129

References

129

4 Microstructure and Chemical Analysis of Friction Stir Spot Welding Between Aluminium and Copper (Case Study)

134

Abstract

134

4.1 Introduction

134

4.2 Experimental Procedure

135

4.3 Results and Discussion

137

4.3.1 Microstructural Evolution

138

4.3.2 Chemical Analysis

146

4.3.2.1 Energy Dispersive Spectroscopy Analyses (EDS)

150

4.4 Conclusion

162

References

162

5 Microhardness Profile and Shear Tensile Test of FSSWelds AA1060 to C11000 (Case Study)

164

Abstract

164

5.1 Introduction

164

5.2 Materials and Methods

165

5.2.1 Vickers Microhardness Profile

165

5.2.2 Shear Tensile Testing

167

5.3 Results and Discussion

167

5.4 Conclusions

185

References

185

6 Residual Stresses in Friction Stir Spot Welded AA1060 to C11000 Using the X-Ray Diffraction Technique (Case Study)

187

Abstract

187

6.1 Introduction

188

6.2 Materials and Methods

192

6.3 Results and Discussion

194

6.3.1 Effect of Process Parameters on the Formation of a Copper Ring (Hook)

194

6.3.2 Residual Stress Analyses Using the XRD Technique

196

6.3.3 Effect of Process Parameters on the FHWM of the Spot Welds

201

6.3.4 Electrical Resistivity Measurements

202

6.4 Conclusions

208

References

209

Glossary

211