The Electrochemical Discharge Machining (ECDM) is a non-conducting machining process which combines the features of Electric Discharge Machining (EDM) and Electrochemical Machining (ECM). The material is removed by thermal melting and chemical dissolution. Both conductive and non-conductive materials can be machined. The discharge occurs between the positively polarized tool electrode and the negatively polarized auxiliary electrode immersed in an electrolyte bath along with the work piece.
The system consists of an XYZ stage with CNC controller, a rotating tool holder with carbon brush contact for supplying the electric potential to the tool, an additional Z stage for continuously adjusting the gap between the tool and the work piece, a tank for keeping the electrolyte and the work piece and a 300V power supply to produce the discharge.
Motorized XYZ Stage with base plate and vertical column | ||
Motor Type | : | AC servo motors |
Three axis CNC Controller and Software | ||
Additional Z stage for gap control | ||
Platform size of the XY stage | : | 450 X 450 mm |
Travel | : | 100 x 100 x 100 mm (XYZ) |
Resolution | : | 1 μm in each axis |
Position accuracy | : | 5 μm in each axis |
Speed | : | 0.01 to 8 mm/s in all axes |
XY stage mounted on the machine base plate | ||
Z stage mounted on the vertical column | ||
Acrylic tank on the XY stage for carrying work piece and electrolyte | ||
Spindle | ||
Spindle motor with 3mm collet | ||
Rotation speed | : | 10 - 2000 rpm |
Selectable direction of rotation | ||
Oscillatory rotation | ||
300V DC Power Supply | ||
Output voltage | : | 0 - 300V (Variable using front panel knob) |
Microprocessor controlled pulsed mode of operation | ||
Software controlled pulse width | ||
On time | : | 1 - 999 ms |
Off time | : | 1 - 999 ms |
On time + Off time | : | 1000 ms Maximum |
Third party CNC software for XYZ movement and spindle start / stop control Holmarc software for power supply, gap control and spindle rotation settings USB connectivity
Input voltage : 230V 50 Hz
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