xx CHAPTER 32 Shielded Metal Arc Welding ................. 566 32.1 Arc Welding Equipment and Accessories ........568 32.2 Welding Symbols ............................................572 32.3 Preparing to Arc Weld .....................................572 32.4 Safety Precautions for Arc Welding .................576 CHAPTER 33 Other Welding Processes ...................... 578 33.1 Gas Tungsten Arc Welding ..............................580 33.2 Gas Metal Arc Welding....................................580 33.3 Flux-Cored Arc Welding ..................................580 33.4 Submerged Arc Welding .................................582 33.5 Arc Stud Welding............................................582 33.6 Resistance Welding ........................................582 33.7 Electron Beam Welding ..................................585 33.8 Friction Welding .............................................586 33.9 Ultrasonic Welding .........................................586 33.10 Cold Welding................................................587 33.11 Laser Beam Welding ....................................587 33.12 Plasma Arc Welding .....................................587 33.13 Thermal Spraying .........................................588 SECTION 6 OTHER METALWORKING APPLICATIONS CHAPTER 34 Heat Treatment of Metals ..................... 594 34.1 Heat Treatment Processes...............................596 34.2 Heat Treating Furnaces ...................................599 34.3 Hardening Carbon Steel..................................601 34.4 Tempering Carbon Steel .................................602 34.5 Case Hardening Low Carbon Steel ..................603 34.6 Hardness Testing ............................................603 34.7 Other Heat-Treatable Metals ..........................605 34.8 Heat Treating Safety .......................................606 CHAPTER 35 Quality Control .................................... 608 35.1 Destructive Testing .........................................610 35.2 Nondestructive Testing ...................................611 35.3 Other Quality Control Techniques ...................617 CHAPTER 36 Metal Finishes ..................................... 620 36.1 Metal Finishes ................................................622 36.2 Surface Preparation ........................................622 36.3 Finishing Processes .........................................623 36.4 Metal Finishing Safety....................................633 CHAPTER 37 Art Metal............................................. 636 37.1 Metalsmithing ...............................................638 37.2 Annealing and Pickling ..................................638 37.3 Art Metal Tools ...............................................638 37.4 Types of Metal ................................................642 37.5 Raising Metal .................................................643 37.6 Joining Metal .................................................645 37.7 Surface Finishes .............................................646 37.8 Polishing ........................................................648 37.9 Art Metal Safety .............................................648 CHAPTER 38 Wrought Metal .................................... 650 38.1 Project Planning .............................................652 38.2 Wrought Metalwork Tools and Equipment ......653 38.3 Bending and Forming with Hand Tools...........654 38.4 Bending and Forming with Machines.............658 38.5 Assembling Wrought Metal Pieces ................658 38.6 Finishing Wrought Metals ..............................659 38.7 Safety.............................................................659 Appendix............................................................. 661 Glossary .............................................................. 684 Index .................................................................. 720