http://www.china-edm.com/index.htmHONGKONG TOPWEDM MACHINE TOOL CO.,LIMITED belongs to CYAN Group, a high-tech company which specializes in the research and manufacturing of EDM machines including CNC High Speed Wire-cut EDM Machine, CNC Medium Speed Wire-cut EDM Machine, EDM machine and High Speed Small Hole EDM Machine.EDM Machinehttp://www.china-edm.com/13/index.htmhttp://www.china-edm.com/13/62.htmThe basic EDM process is an electrical spark that is created between an electrode and a work piece. The spark is visible evidence of the electro-discharge. This electric spark produces intense heat with temperatures reaching 8000 to 12000 degrees Celsius, melting almost anything. The spark is very carefully controlled and localized so that it only affects the surface of the material. The EDM process usually does not affect the heat treat below the surface. With wire EDM the spark always takes place in the dielectric of deionized water. The conductivity of the water is carefully controlled making an excellent environment for the EDM process. The water acts as a coolant and flushes away the eroded metal particles.2009-2-18EDM Machinehttp://www.china-edm.com/13/index.htmhttp://www.china-edm.com/13/61.htmThe basic EDM process is an electrical spark that is created between an electrode and a work piece. The spark is visible evidence of the electro-discharge. This electric spark produces intense heat with temperatures reaching 8000 to 12000 degrees Celsius, melting almost anything. The spark is very carefully controlled and localized so that it only affects the surface of the material. The EDM process usually does not affect the heat treat below the surface. With wire EDM the spark always takes place in the dielectric of deionized water. The conductivity of the water is carefully controlled making an excellent environment for the EDM process. The water acts as a coolant and flushes away the eroded metal particles.2009-2-18