Index 891 impact wear, 689 impedance, 778 inch switch, 214, 281 inductance, 269 induction heating, 727, 754 induction soldering, 450 inductive reactance, 123 industrial robots, 674 inert gases, 196, 283 infrared soldering, 449 ingot, 723 processing, 723–725 injector-type torch, 364 inorganic fl ux, 439 in-phase, 552 inside corner joint, 48 inside diameter (ID), 342 inspecting welds destructive tests, 780–784 equipment, 828 laboratory methods of testing welds, 785–791 nondestructive examination, 779–780 safety, 791 insurance companies and associa- tions, 794 intermittent current, 522 intermittent welding, 62 interpass heating, 753 interview, 838 inverter, 118 inverter switcher, 129–130 ionization, 157–158 ionized, 305 iron identifi cation, 740–745 manufacturing, 709–712 physical properties, 734–736 iron carbide, 734 iron-carbon diagram, 737–740 J jobs applying for, 838 factors that lead to rejection for employment, 839 factors that lead to termination, 839–840 typical weld shop duties, 839 underwater welding, 664–665 welding tests required for, 838–839 jog switch, 214, 281 joint geometry, 51–53 joint penetration, 48 K Kelvin scale, 857 kerf, 306 keyhole method, 180 kilopascals, 88 kilovolt amperes, 514 knife switch, 652 KVA (kilovolt-ampere) rating, 486–487 L laboratory methods of testing welds chemical analysis, 790–791 hardness testing, 787–789 impact tests, 786 macroscopic testing, 790 microscopic testing, 789–790 ladle, 716 ladle degassing, 719 laminated core, 485 lap joint, 48, 177–178 laser, 552 laser beam cutting (LBC), 643 laser beam drilling (LBD), 643 laser beam welding (LBW), 552–556 leader lines, 41 left side view, 37 length dimension, 62 letter drill set, 850 light-emitting diode (LED), 668 liner, 216, 289–290 liquefi ed petroleum (LP), 352 liquid metal, 155 liquid penetrant inspection (PT), 775–777 liquidus, 436 liquidus line, 739 lithium, properties, 751 longitudinal face and root bends, 780–781 low-alloy steel electrodes, 164, 223, 225 classifi cation, 141–145 low-hydrogen electrodes, 143 low-pressure gauge, 334 lugs, 134–135 M macroscopic, 790 magnesium, 584 magnetic amplifi er control, 125 magnetic lens, 110 magnetic particle inspection (MT), 773–775 magnetic test, 743 malleable cast iron, 766 manual mode, 683 maraging steels, 565 martensitic steel, 566–567 master regulator, 327 master service regulator, 337–338 math, 836 mechanical cleaning, 460 mechanical cutting, underwater, 657–659 mechanical drafting, 834 mechanical drawing, 35 mechanized GTAW, 263 mechanized welding, 673 media blaster, 826 medium-carbon steel, 560–561 melt-through symbol, 63 metal composition, 163 preparing for welding, 251–252, 290 properties, 847–848 metal powder cutting (OC-P), 640–641 metal properties and identifi cation cooling curves, 736–737 hard surfacing metals, 750 iron and steel, 733–736, 740–745 iron-carbon diagram, 737–740 nonferrous metals, 745 numbering systems for steels, 745 oxyacetylene torch test, 742–743 soft surfacing metals, 750 spark test, 740–742 special metals, 750–751 metal shop, 834 metal surfacing detonation fl ame spraying, 700 electric arc spraying, 699 fl ame spraying, 694–699 plasma arc spraying, 700–702 principles, 688–689 process selection, 689–694 safety, 705 surface preparation, 702–703 thermal spraying, 703–705 metal transfer, 268–273 metric drill set, 850 microhardness testers, 789 MIG, 77 mixing chamber, 345 monochromatic, 554 monolithic, 328 movable core reactor, 123 movable shunt transformer control, 121