electrical discharge machining

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Across
  1. 5. process Process used in manufacturing
  2. 6. Airless space or insulating substance in which an electric field is maintained without charge supply
  3. 7. Part of a circuit at which electric current passes into another medium
Down
  1. 1. Loss or decrease of electrical voltage
  2. 2. also called cutters
  3. 3. a certain state of space around a charged body
  4. 4. glowing particle that dissolves during combustion and friction processes
  5. 8. Object around the central cylindrical part of which something is or is wrapped