Generation of cavities with ECM-contouring

Electrochemical contouring is used to generate cavities on components. A commonly rotation-symmetrical tool is introduced through a hole into the component. By electrochemical erosion, a cavity is produced whose diameter exceeds the diameter of initial hole (aspect ratio up to 2:1 and more). Said cavities can also be made either one-sided or asymmetrically.

Benefits of process

  • Form-machining by ECM or PECM (Pulsed Electrochemical Machining)
  • Generation of undercuts
  • Establishing connections of closely spaced holes inside the work pieces along with simultaneous chamfering of intersections
  • Improvement of flow-related characteristics of work pieces
  • Avoiding mechanical and thermal loads thanks to non-contact machining at room temperature


Application example


ECM Auskesseln      Work piece housings
Machining task    aspect ratio ≥ 2,0
Material iron-nickel-basis-alloy

diameter D1=5,5 (starting hole)

diameter D2=11,6 (chamfer)

repeat accuracy, high removing of material ± 0,01 g

We proudly support you in technology development for your products.



This website uses cookies. By clicking "continue", you agree to the "Privacy and Cookie Policy" of our website. If you want to know more about our "Privacy and Cookie Policy", then click "read more". Read more …