Makino SuperSpark IV improves deep rib die-sink EDM roughing

SuperSpark technology uses a combination of shortened jump cycles and spark-gap adaptive power control to improve process efficiency and productivity. Under standard sinker EDM jump cycles, more than 60% of total process time is spent out of the cut. SuperSpark more than doubles the actual cutting time, because its shortened jump height requires less time for electrodes to return to the workpiece. In addition, its spark-gap adaptive power control enables electrodes to discharge sparks during the jump cycle for continuous cutting throughout the EDM process. As the electrode depth increases, the power and spark gap decreases to prevent overburn. Together, these technologies improve total machining times by 20 to 30% over standard sinker EDM technologies. SuperSpark IV builds on this performance to deliver higher efficiency in deep ribs and drafted electrodes. With its adaptive jump functions and automatic calculation, plus adjustment of machine power according to depth and draft, SuperSpark IV significantly improves deep-rib machining efficiency over its predecessor. The original SuperSpark technology, introduced in 2001, enabled manufacturers to significantly reduce overall roughing times. Subsequent versions have provided additional improvements to roughing and finishing, particularly with tapered electrodes.