Forming with ECM-sinking

Electrochemical sinking includes an erosive machining process in which a specially shaped tool is placed opposite to a work piece. Relative cathode movements can be performed. Upon ECM-sinking, the shape of tool is mapped on and/or in the work piece.

Benefits of process:

  • Form-machining with utmost precision
  • High surface finish and mapping accuracy
  • High process speed (up to 3 mm/min and faster) as a function of material and application
  • Machining of unalloyed and alloyed steels as well as carbide, titanium, nickel-based and powder-metallurgical alloys
  • No process-related cathode wear


Application example


ECM Senken von Zahnrädern  Work piece gear
Machining task

defined chamfer on over 100 cogs

Material 37MnB4 (1.5524)
Process time 25s
Repeat accurancy ± 0,02 mm

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