DK77 series CNC fast speed edm cutting machine for metal parts

The Fast Wire Electrical Discharge Machining (WEDM) machine, also known as a High-Speed Wire Electrical Discharge Machine (WEDM-HS), is an efficient metal cutting device. It operates by using a rapidly reciprocating electrode wire (usually made of molybdenum wire) with speeds ranging from 8 to 10 meters per second. The wire can be reused, leading to high cutting speeds. Its accuracy typically falls between 0.05 to 0.08 millimeters.

During operation, the wire is negatively charged, while the workpiece is positively charged. When the distance between them is less than the discharge gap, a pulse power supply generates an electric spark, creating high temperatures that melt or vaporize the workpiece's surface. The wire's movement and the impact of the working fluid remove the metal, forming a groove. Since the molybdenum wire's melting point is much higher than the workpiece material and it moves away from the high-temperature area, the wire's wear is significantly less than the workpiece, ensuring precise cutting.

Fast wire EDMs are widely used in mold manufacturing, processing of difficult-to-machine materials, and for complex part fabrication. Especially suitable for rapid processing of large-thickness molds or components, regular maintenance and replacement of consumables like guide wheels and guides, as well as quality control of the molybdenum wire and cutting fluid, are essential to maintain high cutting quality.

In China, the development of fast wire EDM machines started in the 1960s, with the invention by Engineer Zhang Weiliang. Later, they were commercialized in factories in cities like Suzhou. Over time, through technological advancements such as the application of single-board computers, innovations in working media, and the introduction of composite working fluids, the efficiency and surface finish of cutting have been significantly improved. Modern fast wire EDM machines not only boast improved design aesthetics but also enhanced functionality and environmental performance.

If you need more detailed information about fast wire EDM machines or are looking for specific models, it's recommended to consult professional wire EDM machine manufacturers, like Jiang Lin Numerical Control Machine Tool Co., Ltd., who can provide comprehensive support from equipment supply to after-sales service.