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EDM Drilling Machine (Electrical discharge machining), also identified as spark machining, spark eroding, die sinking, wire burning or cable erosion, is a metal fabrication procedure whereby a desired shape is obtained by using electrical discharges (sparks). Material is removed from the work piece by a sequence of rapidly recurring current discharges between two electrodes, divided by a dielectric liquid and subject to an electric voltage. One of the electrodes is so-called the tool-electrode, or simply the tool or electrode, while the other is called the work piece-electrode, or work piece.
The process depends upon the tool and work piece not building physical contact. When the voltage between the dual electrodes is increased, the intensity of the electric field in the volume between the electrodes becomes greater, causing dielectric break down of the liquid, and produces an electric arc. As an outcome, material is removed from the electrodes. Once the current stops (or is stopped, depending on the form of generator), new liquid dielectric is conveyed into the inter-electrode volume, enabling the solid particles (debris) to be carried gone and the insulating properties of the dielectric to be restored.
Adding new liquid dielectric in the inter-electrode volume is generally referred to as flushing. After a current flow, the voltage between the electrodes is reinstated to what it was before the breakdown, so that a new liquid dielectric breakdown can occur to repeat the rotation.
Berline Machine Corporation is the best EDM Drilling Machine Supplier Company in Pune India. EDM Drill Machine use electrical discharges or sparks for obtaining desired shape. Reverse sparks are also possible with these high functionality machines. Offered in a varied series of specifications, these efficient and extremely durable electric discharge machining are consistent in operation and consume less electricity. Before the final dispatch, the entire range is checked for its flawlessness.
We are the EDM Drilling Machine Manufacturer Company in Pune, Mumbai, India. We provide world-class quality assurance for the machine Model. Consider the size of the EDM Drilling Machine; we give the big size devices at the economic support to the customers and dealers at an adequate price which cannot be given by any of the manufactures. We also give a small size EDM Drilling Machine model as per the customer demands across the globe. The quality of the machine provides a good provision for user-friendly applications. Our team and production team concentrate on providing the standard precision and authority for each machine to customers. Based on the current technology and usage the device gives the user-interface service application for the consumers.
| Automatic Grade | Automatic |
|---|---|
| Model | FDD703 |
| Brand | Fostex |
| Power Supply | 415 V, 3 Phase, 50 Hz |
| Special Electrodes for Drilling | 3.1 to 10 mm |
| Brass Electrodes | 1.0 mm x 400 mm (Dia x Length) |
| Bakelite Guide Size | 1.0 mm |
| Ruby Guide | 0.0 - 3.0 mm |
| Electrodes | 0.3 - 3.0 mm |
Sinker EDM, also known as ram EDM, cavity category EDM or volume EDM, consists of an electrode and work piece submerged in an insulating liquid such as, more commonly, oil or, less frequently, other dielectric fluids. The electrode and work piece are linked to a suitable power supply. The power supply generates an electrical potential between the two portions. As the electrode approaches the work piece, dielectric breakdown occurs in the fluid, forming a plasma channel, and a small spark jumps these sparks generally strike one at a time, because it is very unlikely that different locations in the inter-electrode space have the identical local electrical characteristics which would enable a spark to occur simultaneously in all such locations. These sparks happen in huge quantities at seemingly random locations between the electrode and the work piece. As the base metal is eroded, and the spark gap subsequently increased, the electrode is lowered automatically by the machine so that the process can continue uninterrupted. Several hundred thousand sparks occur per second, with the actual duty cycle carefully controlled by the setup parameters. These monitoring cycles are sometimes known as "on time" and "off time", which are more officially defined in the literature
In wire electrical discharge machining (WEDM), as well known as wire-cut EDM machine and wire cutting, a thin single-strand metal wire, usually brass, is fed through the work piece, submerged in a tank of dielectric fluid, usually deionized water. Wire-cut EDM is typically used to cut plates as thick as 300mm and to make punches, tools, and dies from hard metals that are problematic to machine with new techniques. The wire, which is frequently fed from a spool, is held between upper and lower diamond a guide who is centered in a water nozzle head.
Fast hole drilling EDM was designed for producing fast, perfect, small, and deep holes. It is theoretically akin to sinker EDM but the electrode is a rotating tube conveying a pressurized jet of dielectric fluid. It can make a hole an inch deep in about a minute and is a good way to machine holes in materials too tough for twist-drill machining. This EDM drilling machine type is used largely in the aerospace industry, producing cooling holes into aero blades and other mechanisms. It is also used to drill holes in industrial gas turbine blades, in molds and dies, and in bearings.
