INTRODUCTION TO WELDING TERMINOLOGY (1)

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Across
  1. 2. Crack in crater.
  2. 3. A welding technique wherein the increments of weld are deposited opposite the direction of progression.
  3. 4. Distance melting goes into base metal during welding.
  4. 6. Amount or rate of current that flows in a circuit.
  5. 7. Device that holds electrode and conducts current to it.
  6. 9. Depression at end of bead.
  7. 10. Conductor (welding cable) between current source and electrode holder.
  8. 13. Weld in joint between two pieces of metal lying in about the same plane.
  9. 15. Electric current which flows only in one direction. In welding, an arc-welding process wherein the power supply at the arc is direct current
  10. 16. Metal deposited when electrode is moved or controlled with the correct technique.
  11. 18. Any material used to back the root of a weld. Backing strips may be metal, carbon, or copper.
  12. 19. Fusible material or gas used to dissolve and/or prevent the formation of oxides, nitrides, or other undesirable inclusions formed in welding.
  13. 20. Metal to be welded or cut.
  14. 21. Welding position in which welding is done from the upper side of the joint; the face of the weld is in a horizontal (flat) position.
Down
  1. 1. containing iron.
  2. 2. Producing coalescence with heat of arc between carbon electrode and work, without gas shielding (pressure and filler metal are optional).
  3. 5. Voltage across the arc.
  4. 8. Property of metals that permits stretching without breaking. Ductility is measured as a percentage of elongation change from the original measurements.
  5. 11. Ratio of arc time to total time. For example, with a 20 percent duty-cycle arc welder, full amperage capacity can be applied continuously for two minutes, then the welder must be cooled off for eight minutes.
  6. 12. Melting together of base metal(s) and filler metal, if any.
  7. 14. Power source used to regulate current for welding.
  8. 17. Weld with a triangular cross section which joins two surfaces at right angles to each other as in a lap, tee, or corner joint.
  9. 22. One who welds, manually or semi- automatically.
  10. 23. That kind of electricity which reverses its direction periodically. For single phase current, the current goes in one direction and then in the other direction 60 times in the same second, so the current changes direction 120 times per second.