How does a spark erosion machine work?
Spark erosion is conducted through metal disintegration machines (EDM). These machines use electrodes to send low voltage/ high current electrical charges that melts the designated piece of metal at the same time cold water thermal shocks the molten steel and pulverizes it into micro size pieces and flushes it away.
What is EDM sparking machine?
Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges (sparks). The process depends upon the tool and work piece not making physical contact.
How does a disintegrator work?
The cutting action of a metal disintegrator is accomplished by creating a series of intermittent electric arcs that break down the hardest metals into minute particles. An electrode, held in the head of the disintegrator, vibrates as it cuts while coolant is pumped through the electrode to wash away the powdered metal.
What are the advantages and disadvantages of EDM?
Advantages and Disadvantages EDM
- Tolerances of +/- 0.005 can be achieved.
- Material hardness does not effect process – Tungsten Carbide – Stellite – Hastelloy – Nitralloy – Waspaloy – Nimonic – Inconel all can be successfully machined by EDM.
- Cutting complex shapes and thin walled configurations without distortion.
How does an EDM machine work?
Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape.
Which materials may be used for spark erosion machining methods?
If materials have a minimum electrical conductivity of 0.01 S/cm, then it’s likely they can be machined with spark erosion. For example, most metals and alloys can undergo this process, including copper and its alloys, tungsten, many stainless steels, carbide, aluminium, and magnesium alloys.
Can you EDM Aluminium?
What kind of material can be cut using wire electrical discharge machining? Virtually any conductive material can be cut using Wire EDM. This would include all metals, including steel, aluminum, brass, titanium, and alloys and super alloys of all types.
Can you wire erode Aluminium?
Wire erosion can cut tungsten carbide, exotic steel alloys, titanium and aluminium – in fact as long as it conducts electricity it can be cut with Wire EDM.
What is the disadvantage of EDM?
Disadvantages of Electrical Discharge Machining The slow rate of material removal. The additional time and cost used for creating electrodes for Ram/Sink EDM. Reproducing sharp corners on the work piece is difficult due to electrode wear.
Is EDM wire expensive?
EDM wire, at its current cost of approximately $6 a pound, is the single highest cost related to the use of WEDM technology. The faster a machine unspools wire, the more it costs to operate that machine.
Can wire EDM cut holes?
If your parts or components require extremely small-diameter holes popped with high precision and accuracy, you need American Wire EDM. With the capabilities to drill blind or through holes as small as 0.010″ in diameter, we offer EDM hole popping services to meet the needs of any industry or application.
