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MicroPoly Electrolytic Machining 0 pages
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| ....,_ _ ^ We make it work. MicroPoly ECD-ECP * micro technica® |
| TECHNOLOGIES |
| Electrolytic deburring- and polishing |
| The MicroPoly ECD-ECP process |
| 1. General. |
| The MicroPoly ECD-ECP process employs a patented electrolyte, an electrical DC power supply and an industrial chiller to keep the electrolyte at a constant temperature and the necessary electrical controls to set process parameters. The MicroPoly Electrochemical Deburring method uniquely removes metal from an electrically charged part in direct proportion to the electrical potential on the surface of the part. Other factors, such as the ion makeup of the electrolyte and the conductivity of the electrolyte contribute to the rate of the metal removal that is established and incorporated in the patented MicroPoly electrolyte. Burrs, sharp edges, points and other irregular geometries will have a higher electrical charge than other surfaces of a static electrically charged object. This principle of physics is utilized in the MicroPoly process to remove burrs because the typical burr will have a higher electrical charge than the base material that forms it. In short, the MicroPoly system is designed to attack the higher charged areas of a part; hence the burrs will be removed. |
| The MicroPoly electrolyte contains Ethylene Glycol that provides an increase in the resistance of the electrolyte and it also slows ion movement within the electrolyte. Ion transport in MicroPoly electrolyte has been measured at 2-3 meter per second as opposed to more conductive electrolytes that may have ion speeds of up to 100 meter per second. Ion transport velocity is also dependent upon electrolyte temperature. Higher electrolyte temperatures allow the ions to move faster. Since momentum is function of the square of the velocity, it is apparent that potential energy due to the momentum is many times less in the MicroPoly electrolyte than in other electrolytes. This is of great importance since the surface electrical charge differences on the part to be processed are not sensed by the ions until they are in close proximity to the part. As the ions approach the part and the differences in electrical charge becomes apparent; the slower moving ions deviate from their paths and reach the higher charged areas in great quantities. Each ion will exchange electrons with the part to be deburred at these more charged areas. The result of the electron exchange is a metallic ion being formed that will ultimately form the metal hydroxide that will precipitate from the electrolyte. In other words, metal will be removed from the higher electrically charged areas and will form sludge in the electrolyte. |
| The experts in advanced deburring and surface finishing |
| www.micro-technica.com |
