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عدد المساهمات : 19001 التقييم : 35505 تاريخ التسجيل : 30/06/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: كتاب Aluminum Extrusion Technology الجمعة 24 مايو 2019, 7:42 pm | |
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أخوانى فى الله أحضرت لكم كتاب Aluminum Extrusion Technology Pradip K. Saha
ويتناول الموضوعات الأتية :
Contents Preface . viii CHAPTER 1: Fundamentals of Extrusion 1 Definition of Extrusion . 1 Classification of Extrusion Processes . 2 Conventional Direct Extrusion . 3 Billet-on-Billet Extrusion . 3 Indirect Extrusion 5 Mechanics of Extrusion 6 Plastic Deformation and Metal Flow 6 Plastic Strain and Strain Rate . 10 Friction Models 12 Extrusion Pressure 16 Analysis of Extrusion Pressure 19 Extrusion Force 22 Effect of Principal Variables on Extrusion 22 Principal Variables . 23 CHAPTER 2: Thermodynamics in Extrusion 29 Extrusion Thermodynamics 31 Thermodynamics Model . 32 Influence of Principal Variables on Temperature Rise 36 Temperature Measurements 37 Isothermal Extrusion 45 CHAPTER 3: Extrusion Press and Auxiliary Equipment . 55 Types of Extrusion Presses 56 Press Selection and Specification . 64 Extrusion Press Components . 66 Auxiliary Equipment . 73 Integrated System 83 CHAPTER 4: Extrusion Die and Tooling 87 Terminology and Functions of Extrusion Dies and Tooling 89 Direct Extrusion 89 Indirect Extrusion . 91 Die Design 92 Die Layout 93 vBearing Length . 95 Die Making 105 Die Correction 105 Factors for Consideration in Die Correction 107 Solid Die . 108 Hollow Die . 108 Die Materials and Surface Treatment . 109 Selection of Die Material 109 Surface Hardening and Treatment 109 Tribology in Extrusion Dies . 110 Wear in an Extrusion Die . 111 CHAPTER 5: Billet Casting Principles and Practice . 119 Principle of Billet Making 119 Casting Practices 122 Casting Variables 122 Charge Material . 124 Melting and Holding . 124 Fluxing and Degassing 125 Grain Refining 127 Filtration System 129 Vertical Casting System 130 Horizontal Casting System 133 Homogenization of Billet . 136 Casting Defects . 140 CHAPTER 6: Extrusion of Soft- and Medium-Grade Alloys . 149 Alloy and Extrudability 150 Product Shapes and Sizes 152 Analysis of Useful Extrusion Parameters 154 Extrusion Runout 155 Extrusion Pressure . 157 Ram and Extrusion Speed Control 158 Butt Thickness Control . 162 Production Practice 165 Extrusion of Solid Shapes . 165 Extrusion of Tubes and Hollow Shapes 167 Productivity Control . 169 Minimize Avoidable Scrap 170 Maximize the Billet Length 170 Optimization of Extrusion Speed and Temperature . 170 Auxiliary Operations 172 Stretching 172 Sawing . 173 Heat Treatment . 174 viMechanical and Physical Tests 176 Extrusion Defects . 177 CHAPTER 7: Extrusion of Hard Alloys 187 Alloys and Extrudability . 188 Product Shapes and Sizes . 189 Extrusion Practices 189 Extrusion Parameters . 189 Press Control . 190 Process Variables and Control . 193 Heat Treatment 193 Auxiliary Processes 195 Extrusion Defects . 195 Quality Assurance . 204 Test Methods . 204 Extrusion of Aluminum Matrix Composites . 204 Billet Metallurgy and Flow Stress 205 Die Materials and Die Design 206 Extrusion Process and Defects . 207 Forming of Extrusion . 208 Powder Metallurgy Alloy Extrusions . 208 CHAPTER 8: Process Control in the Aluminum Extrusion Plant . 213 Extrusion Plant and Processes . 215 Billet-Making Variables 216 Extrusion Die Variables 218 Extrusion Press and Auxiliary Equipment . 223 Extrusion Process Variables 223 Auxiliary Process Variables . 223 Heat Treatment and Mechanical Testing 223 Surface Treatment of Extruded Shapes 229 Quality Control Framework . 230 CHAPTER 9: Statistical Process and Quality Control 233 Basis of the Statistical Control Chart . 236 Quality Control in Billet Making 237 Quality Control of Dies 239 Quality Control of Extrusion 239 Total Quality Management . 239 CHAPTER 10: Research and Development 245 Extrusion Presses and Auxiliary Equipment . 245 Tooling and Die Technology 246 Alloy Making and Billet Casting . 247 Extrusion Process Technology 247 Process and Quality Control .
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