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EDM Drill Machine

Electrical discharge machining (EDM), 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 workpiece-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 a 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.

EDM Drilling Machine

Price : INR. 3,90,000 (All Tax Inclusive)

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.

Features:

  • Two part design
  • Low working height
  • Ball screw for x y axis and l.M. Guideways for Z axis
  • Water tank with s.S. Steel body coolant pump
  • S.S. Accumulator for constant pressure
  • Variable pressure setting of coolant 0 to 100 kg/cm2
  • Safety pressure switch for over coolant pressure
  • 100% indigenous controller
  • 100% spares availability in local market
  • Efficient
  • Seamless finish
  • Smooth operations
  • Dc stepper motor with belt drive
  • Special circuit for deep drilling
  • Safety interlock present
  • Current booster for high speed drilling operation drilling diameter from 0.3mm to 3mm.
  • The maximum depth ratio could be 300:1
  • Blind hole can also be makes. Precision (hole straightness) is less than 0.04 mm.
  • Can drill on oblique and curved surface directly
  • Fast processing speed and low consumption
  • Can use water as coolant, low cost and no pollution
Types of EDM Drill Machine:

Sinker EDM

Sinker EDM, also known as ram EDM, cavity category EDM or volume EDM, consists of an electrode and workpiece submerged in an insulating liquid such as, more commonly, oil or, less frequently, other dielectric fluids. The electrode and workpiece are linked to a suitable power supply. The power supply generates an electrical potential between the two portions. As the electrode approaches the workpiece, 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 workpiece. 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

Wire EDM

In wire electrical discharge machining (WEDM), as well known as wire-cut EDM and wire cutting,a thin single-strand metal wire, usually brass, is fed through the workpiece, 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 guides which is centered in a water nozzle head.

Fast hole drilling EDM

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 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.

Advantages of EDM Drill Machine:

  • Capability to machine complex shapes that would otherwise be difficult to produce with conventional cutting tools.
  • Machining of extremely hard material to very close tolerances.
  • Very minor work pieces can be machined where conventional cutting tools may damage the part from excess cutting tool pressure.
  • There is no direct contact between tool and work piece. Therefore, delicate segments and weak materials can be machined without perceivable distortion.
  • A worthy surface finish can be obtained; a very good surface may be obtained by redundant finishing paths.
  • Very fine holes can be attained.
  • Tapered holes may be manufactured.
  • Pipe or container internal contours and internal corners down to R .001"..

Additional Information:

Two part design
Low working height
Ball screw for x y axis and l.M. Guideways for Z axis

About Us

Based in Pune, Maharashtra, India, we, “Berlin Machine Corporation, established in 2008” are a widely recognized engineering house engaged in Exporting, Manufacturing, Wholesaling, and Trading of a wide gamut of Industrial Machine.

Contact Us

  • Bhairavnath Industrial Estate, Gat No.2/1, Plot No-15, Near Choudhary Weighing Bridge, Dehu-Alandi Road, Chikhali, Pune-412114
  • infoberlinmachine@gmail.com
  • +91 9923800181
  • Mon - Sat: 09:00 AM - 06:00 PM