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| موضوع: كتاب Welding and Joining of Magnesium Alloys الأحد 05 يوليو 2020, 12:12 am | |
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أخوانى فى الله أحضرت لكم كتاب Welding and Joining of Magnesium Alloys Edited by Liming Liu
و المحتوى كما يلي :
Contents Contributor contact details xi Part I General 1 1 Introduction to the welding and joining of magnesium 3 L. Liu, Dalian University of Technology, China 1.1 Background 3 1.2 Characteristics of magnesium alloy welded joints under dynamic load 4 1.3 Efficient gas metal arc welding of magnesium alloys 5 1.4 Dissimilar welding of magnesium alloys to other metals 6 1.5 References 7 2 Welding metallurgy of magnesium alloys 9 L. Liu, Dalian University of Technology, China 2.1 Introduction 9 2.2 Weldability of magnesium alloys 10 2.3 Weldability of magnesium alloys to other metals 12 2.4 References 14 3 Preparation for welding of magnesium alloys 16 L. Liu, Dalian University of Technology, China 3.1 Introduction 16 3.2 Surface treatment of magnesium alloys 16 3.3 Welding groove for magnesium alloys 18 3.4 Preheating and postweld treatments for magnesium alloys 20 3.5 References 22vi Contents 4 Welding materials for magnesium alloys 23 L. Liu, Dalian University of Technology, China 4.1 Introduction 23 4.2 Hot extrusion process of welding materials 27 4.3 Component design of welding materials 32 4.4 Hot pull process of welding materials 34 4.5 Microstructure and strength of welding materials 35 4.6 References 36 5 Welding and joining of magnesium alloys to aluminum alloys 38 L. Liu, Dalian University of Technology, China 5.1 Introduction 38 5.2 Hybrid laser-tungsten inert gas welding of magnesium and aluminum 39 5.3 Diffusion bonding magnesium to aluminum technology 44 5.4 Laser weld bonding magnesium to aluminum technology 49 5.5 Conclusion and future trends 60 5.6 References 61 6 The joining of magnesium alloy to steel 63 L. Liu, Dalian University of Technology, China 6.1 Introduction 63 6.2 Existing problems in the joining of magnesium alloys to steel 64 6.3 Welding principles for the joining of magnesium alloys to steel 66 6.4 Direct joining of magnesium alloys to mild steel 69 6.5 Nickel-added joining of magnesium alloys to steel 74 6.6 Conclusion and future trends 77 6.7 References 77 7 Corrosion and protection of magnesium alloy welds 79 L. Liu, Dalian University of Technology, China 7.1 Introduction 79 7.2 Corrosion characteristics of magnesium alloy weldment 80 7.3 Improvement in the corrosion resistance of magnesium alloy weldment 86 7.4 Conclusion and future trends 92 7.5 References 93Contents vii Part II Particular welding and joining techniques 95 8 Brazing and soldering of magnesium alloys 97 T. WaTanabe, Niigata University, Japan 8.1 Surface preparation of magnesium alloys before joining 97 8.2 Brazing of magnesium alloys using flux and filler metal 103 8.3 Ultrasonic brazing of magnesium alloys with no flux 112 8.4 Soldering of magnesium alloys 117 8.5 References 120 9 Mechanical joining of magnesium alloys 122 M. Heger, b?llhoff, Germany and M. HorsTMann, Hella KGaA Hueck & Co., Germany 9.1 Introduction 122 9.2 Technologies with pre-punching operation and one-sided accessibility 123 9.3 Technologies with pre-punching operation and two-sided accessibility 130 9.4 Technologies without pre-punching operation and one-sided accessibility 133 9.5 Technologies without pre-punching operation and two-sided accessibility 138 9.6 Linear technology: hemming 145 9.7 References 147 10 Adhesive bonding of magnesium alloys 149 L. Liu, Dalian University of Technology, China 10.1 Introduction 149 10.2 Surface treatments of magnesium alloys 149 10.3 Adhesive for the bonding of magnesium alloys 154 10.4 Cure for the bonding of magnesium alloys 154 10.5 Applications of the bonding of magnesium alloys 154 10.6 Future trends 158 10.7 References 158 11 Gas-tungsten arc welding of magnesium alloys 160 L. Liu, Dalian University of Technology, China 11.1 Introduction 160 11.2 Gas-tungsten arc welding of magnesium alloys without filling wire 161 11.3 Gas-tungsten arc filler welding of magnesium alloys 168 11.4 References viii Contents 12 Metal inert gas welding of magnesium alloys 178 g. song, Dalian University of Technology, China 12.1 Introduction 178 12.2 Pulsed metal inert gas welding for magnesium alloys 179 12.3 Alternating current metal inert gas welding for magnesium alloys 185 12.4 Conclusion and future trends 194 12.5 References 194 13 Variable polarity plasma arc welding of magnesium alloys 197 Z.D. ZHang, Dalian University of Technology, China 13.1 Introduction 197 13.2 Variable polarity plasma arc welding of magnesium alloys 199 13.3 Variable polarity plasma arc weld bonding of magnesium alloys 211 13.4 Conclusion and future trends 226 13.5 References 227 14 Hybrid laser-arc welding of magnesium alloys 229 g. song, Dalian University of Technology, China 14.1 Introduction 229 14.2 Low-power laser/arc hybrid welding of magnesium 230 14.3 Hybrid welding process with filler metal 244 14.4 Practical application 250 14.5 Conclusion and future trends 251 14.6 References 251 15 Activating flux tungsten inert gas welding of magnesium alloys 253 Z.D. ZHang, Dalian University of Technology, China 15.1 Introduction 253 15.2 Welding mechanism 254 15.3 Welding parameters 258 15.4 Microstructure of welding joints 267 15.5 Mechanical properties 271 15.6 Future trends 272 15.7 References 272 16 Friction stir welding of magnesium alloys 274 H. ZHang, University of Science and Technology, Beijing, China 16.1 Introduction 274 16.2 Welding parameters and procedures 276 16.3 Welding tools and equipment Contents ix 16.4 Materials that have been or are being friction stir welded 282 16.5 Typical microstructures of friction stir welded magnesium alloys 282 16.6 Properties of friction stir welded magnesium alloys 289 16.7 Weld defects of friction stir welded magnesium alloys 295 16.8 Applications of friction stir welded magnesium alloys 300 16.9 Future trends and sources of further information and advice 301 16.10 Acknowledgements 301 16.11 References 301 17 Laser welding of magnesium alloys 306 J. sHan, Tsinghua University, China 17.1 Introduction 306 17.2 Character of the laser welding process and influence of laser welding parameters 307 17.3 Laser welding of magnesium alloys 318 17.4 Microstructure and properties of laser welding of magnesium alloys 322 17.5 Typical defects of laser welding of magnesium alloys 332 17.6 Outlook and future trends 346 17.7 References 347 18 Resistance spot welding of magnesium alloys 351 L. Liu, University of Waterloo, Canada, J. Feng, Harbin Institute of Technology, China and Y. ZHou, University of Waterloo, Canada 18.1 Introduction 351 18.2 Fundamentals of resistance spot welding 351 18.3 Welding conditions: surface 354 18.4 Welding conditions: welding parameters 358 18.5 Nugget growth and microstructure 359 18.6 Welding of magnesium alloys to other alloys 362 18.7 Equipment for the welding of magnesium alloys 363 18.8 Future trends 364 18.9 References 365 19 Electromagnetic pulse welding of magnesium to aluminium sheets 367 s. Kore, Indian Institute of Technology, Guwahati, India and J. iMberT, Y. ZHou and M. WorsWicK, University of Waterloo, Canada 19.1 Introduction 367 19.2 Fundamental theory of electromagnetic welding 368 19.3 Equipment for electromagnetic welding 369 19.4 Welding technique and materials 372 19.5 Mechanical and metallurgical testing of welds 374x Contents 19.6 Safety guidelines while handling the electromagnetic welding setup 377 19.7 References
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