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EDM Electric Discharge Machining
Davall's EDM Facility
Electric Discharge Machining (commonly known as "EDM Machining") makes it possible to work with metals for which traditional machining techniques are less effective. An important point to remember with EDM Machining is that it will only work with materials that are electrically conductive.
Wire EDM machining (Electric Discharge Machining) is an electro thermal production process in which a thin single-strand of metal wire in conjunction with de-ionized water (used to conduct the electricity) allows the wire to cut through metal by the use of heat from electrical sparks.
Due to the inherent properties of the process, wire EDM will machine complex parts and precision components out of hard, conductive materials such as titanium, inconel and carbide. High levels of surface finish can be achieved with very high form and positional accuracy. As a result many gear components e.g. epi-cyclic annulus gears as small as module of 0.15 [full involute tooth form] can be achieved. This facility is NADCAP approved for aerospace parts.