Information about ECM
ECM stands for "electrochemical machining"
- ECM is a manufacturing process of DIN 8580
- DIN 8590 abrasive processes (e.g. eroding, laser, ECM)
- Electrolytic processes
- Specific material removal through anodal material dissolution
- ECM is extensively described in the VDI-guideline 3401
- EC-lowering (dynamic), EC-deburring (static), EC-contour machining (static) etc.
The electrochemical metal removal is a fast and very inexpensive machining process for metallic workpieces.
This process allows to work on metallic workpieces, no matter if it is a soft or a hard metal.
To achieve the required metal removal during the ECM – process, an appropriate shaped tool will be used for the workpiece surface being machined.
The gap between the workpiece and the tool will be flooded with electrolyte and the workpiece (positive pole) and the tool (negative pole) will be put under voltage.
The current flow causes a controlled removal of the workpiece surface that correlates with the shape of the tool.
Field of application:
- Deburring and/or blunting of internal or external edges of the workpiece
- Manufacturing internal shape and contours
- Polishing internal and external surfaces to a mirror finish
- Handling of extreme hard materials without tool wear
- Handling of workpieces without causing hazardous voltage
- Drilling without burrs
- Deburring without secondary burrs
Process features and advantages:
- Machining of all electrically conducting materials (metallic materials)
- Producing defined radii
- High quality
- Special suitability for large series
- Problem-free handling in hard to reach areas
- Rigidity, toughness and machinability have no influence on the ECM process
- Ability to produce complex geometric shapes
- Burr-free handling
- High material removal rate and surface quality
- High shape and repeat accuracy (reproducibility)
- Process is parallelizable (multiple tool)
- Short processing time
- Long lifetime of tools
- High efficiency