| Autor: |
Abdus Sabur, Abdul Moudood, Mohammad Abdul Maleque, Mohammad Yeakub Ali |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Applied Mechanics and Materials. :1329-1333 |
| ISSN: |
1662-7482 |
| DOI: |
10.4028/www.scientific.net/amm.465-466.1329 |
| Popis: |
Micro-electro discharge machining (micro-EDM) technique, an advanced noncontact machining process, is used for structuring of nonconductive ZrO2 ceramic. In this study copper foil as a conductive layer is adhered on the workpiece surface to initiate the sparks and kerosene is used as dielectric for creation of continuous conductive pyrolytic carbon layer on the machined surface. Voltage (V) and capacitance (C) are considered as the parameters to investigate the process capability of machining parameters in continuous micro-EDM of ZrO2. Different voltage pulses are studied to examine the causes of lower material removal rate (MRR) in micro-EDM of nonconductive ceramics. The results showed that in micro-EDM of ZrO2 MRR increases with the increase of voltage and capacitance initially, but decreases at higher values and no significant materials are removed at capacitances higher than 1nF. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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