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EDM machines are used for the highly precise and accurate machining of work pieces, especially of very hard and resilient materials. Electrical discharge machining is most often used for tool construction, which requires a high level of precision. There are many factors to consider when approaching to buy a used EDM machines.
EDM Machines And Their Manufacturers
It was the English physicist Joseph Priestley who, in 1770, first observed the erosive effect of electrical discharges; an observation on which the principles of an electrical discharge machine are based today. Unlike drilling, turning or milling processes, EDM machines operate by using concentrated electrical discharges to remove material. Otherwise known as electrical discharge machines, they can achieve very high levels of technical precision. Cutting machines are used first to remove excess material and shape the work piece to the highest possible level of precision. The erosion machine can then be used for fine finishing.
|FANUC ROBOCUT α-CiA Specifications|
|Dimensions (L / W / H)||170/155/130mm|
|XY axis Table travel [mm]||600 x 400|
|UV axis Table travel [mm]||200 x 200|
|Z axis Table travel [mm]||Standard -130|
|Wire diameter [mm]||φ0.1 - 0.3|
Wire EDM allows the user to cut intricate shapes without compromising the strength of the work piece as it is a non contact process that exerts minimal stress during the manufacturing process. A major benefit of EDM machines is that they are extremely effective when used on extremely hard metals and alloys. Using this method there is no need to heat and soften pre-hardened steel. Electric discharge machining can be used to cut a wide range of materials, including titanium, aluminium, stainless steel, mild steel, tungsten carbide, graphite, kovar, hastelloy, and inconel. It is ideal for use on the manufacture of tools that have to be extremely robust and long lasting but which require a high level of processing. Some of the areas of industry that have benefited hugely from the use of an electric discharge machine are aerospace, pharmaceuticals, food, ceramics, petrochemical, motors and tool manufacturing.
AGIE CHARMILLES is a market leading company in the sales and support of technically advanced, high quality and high-performance wire and spark erosion machines. The FANUC Robocut series is very highly regarded in the precision industries in which EDM machining is essential. The ONA E400 and S250 are particularly admired for their intuitive controls. Very popular in a number of industries such as aircraft and IT are the MITSUBISHI erosion machines. The company offers electric die-sinking EDM, fine hole erosion and wire EDM machines that are renowned for their high speed and high degree of accuracy.
The Advantages Of Buying Used EDM Machines At Auction
Due to their highly specialised nature, there are not a lot of EDM machine manufacturers. EDM machines are very expensive so to buy spark erosion machine is a viable and cost effective option. The extremely high degree of quality involved in their manufacture means that it is fine to buy a used EDM machine and still be sure that you will enjoy a good many years of trouble free operation. If you find used EDM machines for sale at auction you can be confident that they are being sold due to a change in a company's circumstances, not because they are no longer serviceable.
EDM Machine Manufacturers
AEG, AGIE CHARMILLES, DIEBURG, FANUC, HANSEN, INGERSOLL-RAND, JUNG, MAXIMART, MITSUBISHI, ONA, QUALITETCH, SIEGBURG, SODICK.