Installation for the manufacture of contact masks for metal deposition by electric spark cutting

Installation for the manufacture of contact masks for metal deposition by electric spark cutting

 

Cutting the mask of a metal foil is made by a tungsten needle. The needle and the foil connected to the output of the HF generator and immersed into distilled water. At the point of contact there is a spark, burning through the foil. Cutting thickness is limited by the thickness of the tungsten wire (50 micrometers). Standard size foil 2cm, masks - 8mm. It is possible to make bigger masks.