WEDM liquid wire EDM working fluid development trend

With the development of wire cutting technology and the popularization and use of wire cutting machine tools, the performance requirements of wire cutting working fluid are also constantly improving. To meet the requirements of stable cutting of large thickness workpiece. Large-thickness workpieces usually refer to steels with a thickness of 200 mm or more and difficult-to-machine materials of 70 mm in thickness, such as copper and cemented carbide. For large thickness workpiece, it is difficult for wire cutting working fluid to enter the discharge gap to play the role of cooling, lubrication and chip evacuation. Increasing the discharge gap will cause the electrode wire amplitude to increase and the machining of Suzhou wire cutting and cutting oil is unstable. Therefore, Cutting the working fluid dielectric properties, cooling performance, lubrication chip removal performance and the eradication of the stability of the wrap made a higher demand. Meet the environmental requirements of the wire cutting fluid.

Environmental protection has become the focus of this century, in addition to the wire EDM working fluid should have good processing properties, but also should have a long service life, less environmental pollution, harmless to the human body and so on. At the same time, wire cutting fluid products should not contain sodium nitrite and chromate and other harmful substances to meet the requirements of national environmental laws and regulations. Development of special wire cutting fluid for cutting special materials. With the popularization and application of wire cutting process, the cutting of special or special materials such as ceramic composite materials, aluminum and its alloys, and the cutting of semiconductor materials will continue to emerge. Working fluid.