Makino’s Diffused Discharge Machining (DDM) Produces High Quality Surface Finishes

Makino’s Diffused Discharge Machining (DDM) Produces High Quality Surface Finishes
New Technology Can Totally Eliminate the Need for Polishing in Certain Applications

Diffused Discharged Machining

Makino’s new line of S-series die sinker EDM machines utilizes Diffused Discharge Machining (DDM) Technology to produce High-Quality Surface Finishes (HQSF^TM). DDM uses an environmentally safe powder additive that is mixed with the dielectric fluid to improve electrical conductivity for more consistent discharging and spark diffusion. This eliminates secondary discharges that waste energy and provides a smaller crater for a superior finish without a loss in metal removal rates.

The EDNC43S is just one of eight S-series models that are ideal for shops looking to dramatically cut polishing times. In fact, in certain applications, DDM can totally eliminate the need for polishing. The additive-based technology has a major impact on finishing time, with a 25 percent or better performance improvement over conventional EDM sinkers in similar applications.

DDM is a remarkably practical method of machining that combines micro-discharge pulse control, high response servo technology and Makino’s patented additive to improve machine throughput. Makino’s HQSF^TM provides numerous benefits over previously used silicon or chrome additives. This new technology is expected to find application in many areas, including the machining of ribs and other hard-to-polish shapes.