WIRE ELECTRO-DISCHARGE MACHINING
It is a process similar to the EDM except that a copper wire of diameter in the range of 0.20 0.50 rom is used for cutting through slots of required shape. Certain degree of draft cutting. (Cuttirig at an angle permissible around 7 degj side.). The process utilizes a predrilled hole to allow the cutting wire to pass through the hole then attached to the winding cylinder. The working chamber is filled with dielectric fluid distilled water. The wire sparks and melts the material in the region of spark gap usually 0.1 - 0.2 mm.
APPLICATIONS OF WEDM
The WEDM is widely used in the production of prototypes, small series of spare parts, stamping dies, drawing and extruding tools, templates, gauges, cam discs, electrodes for spark erosion, blanking dies, sintering dies, plastic molding dies etc.,
ADVANTAGES:
1. WEDM can machine any complicated through hole dies of electrically conductive materials.
2. The time utilization of WEDM is high as it can work right through out the day.
3. Small batch productions including prototypes can be economically machined as most of the programming is easily done. 4. The process leads to high surface finish.
It is a process similar to the EDM except that a copper wire of diameter in the range of 0.20 0.50 rom is used for cutting through slots of required shape. Certain degree of draft cutting. (Cuttirig at an angle permissible around 7 degj side.). The process utilizes a predrilled hole to allow the cutting wire to pass through the hole then attached to the winding cylinder. The working chamber is filled with dielectric fluid distilled water. The wire sparks and melts the material in the region of spark gap usually 0.1 - 0.2 mm.
APPLICATIONS OF WEDM
The WEDM is widely used in the production of prototypes, small series of spare parts, stamping dies, drawing and extruding tools, templates, gauges, cam discs, electrodes for spark erosion, blanking dies, sintering dies, plastic molding dies etc.,
ADVANTAGES:
1. WEDM can machine any complicated through hole dies of electrically conductive materials.
2. The time utilization of WEDM is high as it can work right through out the day.
3. Small batch productions including prototypes can be economically machined as most of the programming is easily done. 4. The process leads to high surface finish.
WIRE-EDM MACHINE & ITS SPECIFICATION:
| MAKE | ELCTRONICA |
| TABLE TRA VEL(mm) | 400X300X250 |
| D,V AXIS TRAVEL (mm) | +/-40 |
| TABLE SIZE (mm) | 660X440 |
| MAX. WORKPIECE(mm) | 500X400X250 |
| MAX. WORKPIECE WEIGHT(Kg) | 500 |
| MAIN TABLE FEED RATE(mm/min) | 900 |
| WIRE FEED RATE(m/min) | 0-15 |
| WIRE TENSION (Kg£) | 2.5 |
| WIRE GUIDE DIA(mm) | 0.25 |
| | + / - 30° /50mm LENGTH |
| TAPER CUTTING | +/-15° /100mm LENGTH |
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