Why EDM power feed contact wear is especially serious?

 When NC WEDM processing of aluminum materials, why EDM power feed contact wear is especially serious?Does the business of business of EDM fittings have thought of this problem? If not, then please follow me.The reason is:cutting aluminum materials, it will produce a lot of alumina or stuck to the surface of a alumina particles. These particles surface extrahard and with abrasive properties and is easy to adhere on the wire electrode, resulting in wire electrode in high speed reciprocating motion, the conductive contact part of the electrode wire and the wire walking is grinding out of the ditch to. Also electrical erosion particles large stuffed in the trenches will enable machining gap is easy to plug, wire electrode is easily stuck off. In addition, alumina particles enable electrode wire and the EDM power feed contact in the movement form spark discharge, the EDM conducting counter faster wear.
   Dongguan KENOS Hardware Technology Co., Ltd.have taken the following measures to the problem of the EDM power feed contact wear why wear was particularly severe:pulse electrical parameters of reasonable collocation, high-speed CNC WEDM wire walking accessories processing, wide pulse width is easy to produce relatively large alumina or stuck to the surface of a alumina particles, pulse interval is too small will produce larger particles. And the electrode wire is very easy to adhere to these larger particles, to bring a great negative impact on the processing. By increasing the no-load voltage amplitude of the pulse power supply, reducing the pulse width and increasing the pulse gap, the possibility of adhering to the electrode wire can be reduced.The technology masters of Dongguan KENOS Hardware Technology Co. Ltd are strict about the EDM Accessories machining process requirements.

Above article from KENOS official website (http://www.edm-accessories.com/)
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