Welding

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Across
  1. 2. The luminous electrical discharge formed when a current jumps across a gap in a circuit.
  2. 3. Welding process using a mixture of gases.
  3. 6. Testing -Non-destructive testing method used to detect internal defects.
  4. 8. Energy transferred from one object to another because of a difference in temperature.
  5. 11. Material added to a joint to fill the gap between two pieces of metal being welded.
  6. 12. Welding process using resistance to join metal surfaces.
  7. 14. Device used to control the flow of gas in gas welding processes.
  8. 16. Metal wire used to conduct electricity during welding.
  9. 17. Flow of electricity in a welding circuit.
  10. 18. Solid metal electrode used in arc welding.
  11. 19. Line created by joining metal pieces.
  12. 20. Substance used as a shielding medium in gas welding processes.
Down
  1. 1. A person who performs welding.
  2. 2. A continuous electrical current between two electrodes.
  3. 4. Metal used in TIG welding electrodes.
  4. 5. Relating to the flow of electricity.
  5. 7. The visible gaseous part of a fire.
  6. 9. Metal rods used to conduct electricity in welding.
  7. 10. Fine particles used in some welding processes for fluxing or shielding.
  8. 12. Protection of the weld from external contamination.
  9. 13. Handheld tool used to direct the flame in welding.
  10. 15. Thin metal strand used as a consumable in welding processes.