5.5 Computer-aided selection 5.6 The structural index 5.7 Summary and conclusions 103 5.8 Further reading 104 6 Materials selection -case studies 6.1 Introduction and synopsis 6.2 Materials for oars 106 6.3 Mirrors for large telescopes 6.4 Materials for table legs 114 6.5 Cost: structural material for buildings 117 6.6 Materials for flywheels 6.7 Materials for springs 126 6.8 Elastic hinges and couplings 130 6.9 Materials for seals 6.10 Deflection-limited design with brittle polymers 136 6.11 Safe pre, damping materials for shaker tables 6. 12 Stiff, high 144 6.13 Insulation for short-term isothermal containers 6. 14 Energy-efficient kiln walls 6.15 Materials for passive solar heating 154 6.16 Materials to minimize thermal distortion in precision devices 6.17 Nylon bearings for ships'rudders 160 6. 18 Materials for heat exchangers 163 6.19 Materials for radomes 168 6.20 Summary and conclusions 172 6.21 Further reading 7 Processes and process selection 7.1 Introduction and synopsis 7.2 Classifying processes 177 7.3 The processes: shaping, joining, and finishing 7.4 Systematic process selection 7.5 Ranking: process cost 7.6 Computer-aided process selection 7.7 Supporting information 7.8 Summary and conclusions 215 7. 9 Further reading 216 8 Process selection case studies 219 8.1 Introduction and synopsis 220 8.2 Forming a fan 220 8.3 Fabricating a pressure vessel 223 8.4 An optical table 8.5 Economical casting 8.6 Computer-based selection: a manifold jacket5.5 Computer-aided selection 99 5.6 The structural index 102 5.7 Summary and conclusions 103 5.8 Further reading 104 6 Materials selection — case studies 105 6.1 Introduction and synopsis 106 6.2 Materials for oars 106 6.3 Mirrors for large telescopes 110 6.4 Materials for table legs 114 6.5 Cost: structural material for buildings 117 6.6 Materials for flywheels 121 6.7 Materials for springs 126 6.8 Elastic hinges and couplings 130 6.9 Materials for seals 133 6.10 Deflection-limited design with brittle polymers 136 6.11 Safe pressure vessels 140 6.12 Stiff, high damping materials for shaker tables 144 6.13 Insulation for short-term isothermal containers 147 6.14 Energy-efficient kiln walls 151 6.15 Materials for passive solar heating 154 6.16 Materials to minimize thermal distortion in precision devices 157 6.17 Nylon bearings for ships’ rudders 160 6.18 Materials for heat exchangers 163 6.19 Materials for radomes 168 6.20 Summary and conclusions 172 6.21 Further reading 172 7 Processes and process selection 175 7.1 Introduction and synopsis 176 7.2 Classifying processes 177 7.3 The processes: shaping, joining, and finishing 180 7.4 Systematic process selection 195 7.5 Ranking: process cost 202 7.6 Computer-aided process selection 209 7.7 Supporting information 215 7.8 Summary and conclusions 215 7.9 Further reading 216 8 Process selection case studies 219 8.1 Introduction and synopsis 220 8.2 Forming a fan 220 8.3 Fabricating a pressure vessel 223 8.4 An optical table 227 8.5 Economical casting 230 8.6 Computer-based selection: a manifold jacket 232 vi Contents