ix Manufacturing and Testing for Industry Unit 23 | Basic Metalworking Processes. . . . . 295 Castings 295 Permanent Mold Casting 296 Die Casting 297 Investment or Lost Wax Casting 298 Shell Molding 298 Sand Casting 298 Forging 299 Extrusion 301 Machine Tools 301 Lathe 303 Drill Press 303 Planing Machines 305 Milling Machines 307 Computer Numerical Control (CNC) Machine Tools 308 Grinding Machines 310 Saws 310 Cold Forming Metal 312 Spinning 312 Shear Spinning 313 Explosive Forming 314 Stamping 315 Shearing 315 Stretch Forming 317 Bending 317 Roll Forming 317 Tube Bending 319 Unit 24 | Examining and Testing Welds . . . . . 325 Basic Classifications of Quality Control Techniques 326 Destructive Examination 326 Guided Bend Test 326 Tensile Test 326 Nondestructive Examination (NDE) 327 Basic Nondestructive Examination Symbols 327 Elements of the Examination Symbol 327 Location Significance of Arrow 328 Location of Examination Symbol 328 Direction of Radiation 329 Combination of Nondestructive Examination Symbols and Welding Symbols 329 Specifying Length of Section to Be Examined 329 Specifying a Section or Plane Area to Be Examined 330 Major Nondestructive Examination (NDE) Methods 330 Visual Testing (VT) 330 Magnetic Particle Testing (MT) 330 Liquid Penetrant Testing (PT) 331 Radiographic Testing (RT) 332 Ultrasonic Testing (UT) 332 Unit 25 | Print Reading Activities. . . . . . . . . .337 25A—Floor Support Assembly 339 25B—Side Sill Assembly 341 25C—Center Sill Web and Flange Assembly 343 25D—Bulkhead Assembly 345 25E—Sheave Wheel Bracket Assembly 347 25F—Striker Assembly 349 25G—Spacer Support, H.D. 351 25H—Bracket 353 25I—Pump Plate 355 25J—Exhaust Support Assembly 357 Reference Section 359 Glossary 377 Index 387