Burr-free drilling with ECM
Electrochemical drilling includes the introduction of geometries into the depth of work pieces by means of electrochemical sinking. Typically, the tool is then moved towards and/or into the work piece so that stationary process parameters can be set.
Benefits of process:
- Generation of round and non-round holes of various dimensions
- Feed rates up to 3 mm/min and beyond as a function of material
- Machining of good- and hard-to-machine materials
- Generation of several closely spaced holes at the same time (diameter and position tolerance ± 0.03 mm and better)
- Tangential holes on cylindrical work piece can be made without any problems
- Simultaneous generation of defined edge chamfers on the entry and exit of hole without additional operation (0.10 mm and bigger)
- Excellent reproducibility of machining results and optimal surface finish thanks to the use of pulsed technology (PECM – Pulsed Electrochemical Machining)
|Work piece||sleeve shaft (outlet of hole inside)|
30 holes Ø 3,5 with defined chamfer outside and inside
|Process time||100 s (wall thickness ca. 3 mm)|
|Repeat accurancy||± 0,10 mm (position and diameter)|
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