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
|Machining task||aspect ratio ≥ 2,0|
diameter D1=5,5 (starting hole)
diameter D2=11,6 (chamfer)
repeat accuracy, high removing of material ± 0,01 g
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