Applying shielded metal arc welding

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Across
  1. 4. a person who welds or a welding machine
  2. 7. are beads deposited on a metal surface for the purpose of building up the base metal.
  3. 10. Electron flow in one direction
  4. 12. a process that uses electricity to heat and melt the metal.
  5. 13. is the bottom of the weld groove opposite the weld face.
  6. 14. is the per-Centage of a 10-minute period in which a welder can operate at a given current setting and is another way to classify welders.
  7. 16. is a bare metal rod that is usually coated with chemical compounds called flux.
  8. 18. When electrical current alternates or reverses the direction of electron flow
  9. 20. are negatively charged particles
  10. 21. is the process of building up several layers of weld deposit by running overlapping passes.
  11. 22. a technique in which metals are welded using the heat generated by an electric arc.
Down
  1. 1. is the direction in which the current is flowing
  2. 2. welding in which fusion is produced by heating with an arc between a consumable stick electrode and the work piece
  3. 3. running a bead with a sideways or oscillating motion.
  4. 5. is the opposi-tion to the flow of current in a circuit
  5. 6. has two surfaces at right angles, and the bead is triangular in shape.
  6. 8. a measure of electrical current flowing through a circuit and is an indication of the heat being produced
  7. 9. is a weld made in a groove between the two pieces of metal to be joined.
  8. 11. melts the base metal and the end of the electrode and forms a molten metal pool
  9. 15. is something that allows the flow of elec-trons
  10. 17. is a measure of electrical pressure.
  11. 18. the distance from the tip of the bare end of the electrode to the base
  12. 19. is the flow of tiny particles called electrons through a conductor.