| A | B |
|---|
| AC CURRENT | ELECTRICITY THAT REVERSES ITS DIRECTION |
| WELDING PATTERNS | FIGURE 8, CRESCENT, WEAVE, STRAIGHT |
| PUDDLE | THE PORTEN OF THE WELD THAT IS LIQUID |
| AMPERAGE | THE AMOUNT OF CURRENT THAT FLOWS INTO A CIRCUIT |
| FILLER ROD | A TYPE OF SOLID STEEL ROD USED IN OXY-ACETYLENE WELDING TO WELD JOINTS TOGETHER |
| PENETRATION | THE DISTANCE THAT THE WELD PENETRATES BELOW THE SURFACE OF THE METAL THAT IS BEING WELDED |
| T-JOINT |  |
| BUTT JOINT |  |
| LAP JOINT |  |
| EDGE JOINT | JOINING TWO PIECES OF METAL TOGETHER BY LAYING THEM ON TOP OF ONE ANOTHER AND WELDING THEM INTO ONE SOLID PIECE OF METAL |
| OUTSIDE CORNER JOINT |  |
| WELDING BEAD |  |
| BUTT JOINT |  |
| LAP JOINT |  |
| BASE METAL | THE METAL TO BE WELDED OR CUT |
| SPLATTER | METAL PARTICLES THAT ARE EXPELLED DURING WELDING |
| FLUX | A CLEANING AGENT FOR THE METAL (MOST WELDING RODS THAT WE USE TO ARC WELD WITH ARE FLUX COATED) |
| TACK WELD | A SHORT WELD THAT HOLDS PART OF A JOINT THAT IS GOING TO BE WELDED UNTIL THE FINAL WELD IS MADE |
| ELECTRODES |  |
| SMAW | SHEILDED METAL ARC WELDING-WELDING DONE BY HEATING WITH AN ELECTRIC ARC FROM A COVERED METAL ELECTRODE |
| UNDERCUT |  |
| PASS | A SINGLE WELDING OPERATION (BEAD) ALONG A JOINT OR WELD DEPOSIT |
| ROOT OF WELD | THE POINT THAT THE BOTTOM OF THE WELD TOUCHES THE BASE METAL SURFACE |
| PREHEATING | THE HEAT APPLIED TO THE WORK BEFORE WELDING OR CUTTING |
| TRAVEL SPEED | THE SPEED THAT YOU MOVE THE ELECTRODE HOLDER DURING WELDING |
| GMAW | GAS METAL ARC WELDING, MIG (MILD INERT GAS) WELDING, OR WIRE WELDING |
| ELECTRODE HOLDER |  |
| ELECTRODE LEAD | THE CABLE THAT RUNS FROM THE WELDER TO THE ELECTRODE HOLDER |
| GROUND CLAMP |  |
| GROUND LEAD | THE CABLE THAT RUNS FROM THE WELDER TO THE GROUND CLAMP |
| E | IDENTIFIES THE ELECTRODE FOR ARC WELDING |
| FIRST TWO DIGITS ON THE ELECTRODE | REPRESENT THE TENSILE STRENGTH OF THE ELECTRODE PER SQUARE INCH |
| THIRD DIGIT ON THE ELECTRODE | INDICATES THE POSSIBLE WELDING POSITIONS |
| FOURTH DIGIT ON THE ELECTRODE | INDICATES SPECIAL CHARACTERISTICS OF THE ELECTRODE |
| NUMBER 1 AS THE THIRD DIGIT ON THE ELECTRODE | INDICATES THE ROD CAN WELD IN ANY POSITION |
| NUMBER 2 AS THE THIRD DIGIT ON THE ELECTRODE | INDICATES THE ROD CAN WELD IN THE DOWNHAND AND HORIZONTAL POSITIONS ONLY |
| NUMBER 3 AS THE THIRD DIGIT ON THE ELECTRODE | INDICATES THE ROD CAN WELD IN THE DOWNHAND POSITION ONLY |
