The present invention relates to an electro-chemical discharge method and device with self-acting bubble layers and in particular relates to an arc processing method and device capable of speed-processing non-conductive materials.
Conventional arc processing is achieved by using a control circuit for a discharge process in which a current source is connected across the electrode and the work piece for generating an arc discharge, said circuit producing pulses for the ignition and stabilization of the arc. Being limited to heating, melting or fusion, the prior art processes do not involve chemical etching. It normally involves slower processes, with such disadvantages that the processes usually leave behind a rough surface on the work piece. Moreover, work piece has to be electrically conductive in order to be arc processed as described above. Consequently, such conventional arc processing or carving processing cannot be extended to non-conductive materials.
Another disadvantage of conventional arc processing lies in its inability to elevate processing rate due to limitations associated with electrolysis.
In light of the foregoing, the present invention is aimed to provide solutions to the aforementioned discrepancies so as to attain enhanced processing with extended applications.
An object of the present invention is to provide a method and device for processing non-conductive materials. Bubbles are first created by electrolysis to form insulating bubble layers. By continuous application of high voltage across the electrodes to cause ionic breakdown of air molecules in the bubble layers, the present invention is capable of generating arc discharge, thereby enabling fusion evaporation and chemical etching for processing non-conductive materials.
Another object of the present invention is to improve arc-processing efficiency. Simultaneous action of arc processing and chemical etching elevates processing rates while achieving surface smoothness on the work piece.
The third object of the present invention is to reduce the operation cost by applying low cost arc processing on high precision and non-conductive parts. The demand for low cost processing remains high and the present invention provides solutions in terms of method and device.
The fourth object of the present invention is to elevate the processing rate. By actively supplying air bubbles to facilitate the formation of bubble layers, the present invention is capable of quickly providing the condition necessary for generating arc discharge, thereby elevating the processing rate.
The following Description and Designation of Drawings are provided in order to help understand the features and content of the present invention.