Electro Discharge Machining:-
The unconventional method of several specific advantages over conventi
onal methods of machining and these promise formidable tasks to be undertaken and set a new recording in the manufacturing technology. EDM is one such machining process, which has been immense help to the manufacturing process engineers to produce intricate shapes on any conducting metal and alloy irrespective of its hardness and toughness.
CLASSIFICATION:-
1. Contact initiated discharge
2. Spark initiated discharge
3. Electrolytic discharge ADVANTAGES
1. The process can be applied to all electrically conducting metal and alloyes irrespectives of their melting points, hardness, toughness, or brittleness
2. Any complicated shape that can be made on the tool can be produced on the work piece
3. Time of machining is less than conventional machining process DISADVANTAGES
1. Power required for machining in E.D.M is very high compared to conventional process.
2. Reproduction of sharp corners is the limitation of the process.
3. Surface cracking takesplace in some materials.
μ-Electro-Discharge Machining:-
Researchers at the University of British Columbia have developed a novel method for high throughput micro-electro-discharge machining (μEDM). This method eliminates the need for numerical control (NC) machines to control the EDM process and enables parallel micro-machining, dramatically reducing costs and time to machine moulds and dies with micro features. The University of British Columbia is seeking partners to co-sponsor further development of this technology and/or to licence the technology on an exclusive or non-exclusive basis.
Advantages:
The unconventional method of several specific advantages over conventi
onal methods of machining and these promise formidable tasks to be undertaken and set a new recording in the manufacturing technology. EDM is one such machining process, which has been immense help to the manufacturing process engineers to produce intricate shapes on any conducting metal and alloy irrespective of its hardness and toughness.CLASSIFICATION:-
1. Contact initiated discharge
2. Spark initiated discharge
3. Electrolytic discharge ADVANTAGES
1. The process can be applied to all electrically conducting metal and alloyes irrespectives of their melting points, hardness, toughness, or brittleness
2. Any complicated shape that can be made on the tool can be produced on the work piece
3. Time of machining is less than conventional machining process DISADVANTAGES
1. Power required for machining in E.D.M is very high compared to conventional process.
2. Reproduction of sharp corners is the limitation of the process.
3. Surface cracking takesplace in some materials.
μ-Electro-Discharge Machining:-
Researchers at the University of British Columbia have developed a novel method for high throughput micro-electro-discharge machining (μEDM). This method eliminates the need for numerical control (NC) machines to control the EDM process and enables parallel micro-machining, dramatically reducing costs and time to machine moulds and dies with micro features. The University of British Columbia is seeking partners to co-sponsor further development of this technology and/or to licence the technology on an exclusive or non-exclusive basis.
Advantages:
- High-throughput, scalable, parallel machining of microstructures in any electrical conductor
- No need for traditional high cost numerical control machines to control tip
- Planar electrodes microfabricated onto workpiece and batch controlled
- Electrode fabrication compatible with standard lithography processes
- Based on established micro-discharge control technology: pattern size <10>
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