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 Tuesday, November 11, 2008
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Advancements in EDM technology from Makino

Makino EDM introduced some new technology at IMTS. For Wire EDM, we presented the new DUO43 and DUO64 WEDMs. These machines will replace the SP series, and have several improvements of note. The DUO series machines are about 20% smaller in footprint than the SPs were, but retain the same X, Y, Z, U, V axis travels. The bed of the machines have been redesigned to incorporate the clean and dirty tanks into the same platform as the machine tool. New technologies will give the machine about a 20% increase in performance in many applications, and we have specifically designed .012" wire technologies to address both speed and performance with larger diameter wires. This is the only WEDM made that offers a choice of wire guide systems, either our proven Split Precision V Guides or the new PICO Precision Guides for small hole/close pitch threading and precision land/taper work for fine blanking and precision stamping dies.

On the sinker side, our newest advancements are a titanium specific generator, and Super Spark Graphite. The titanium generator allows high speed burning of titanium parts, specifically at the request of a major aerospace manufacturer, while maintaining surface integrity of the parts being machined. Super Spark Graphite is a new technology that drastically reduces burn time in deep cavities, while reducing electrode wear. In some cases, Super Spark Graphite allows EDMing of details that were impossible to do with older, standard technologies. One example of this that was on display at IMTS is a blind hole machined with a 5mm (0.197") square electrode to a depth of 200mm (7.874"). The fact that this can even be done at all is amazing, but it took only 20 hours (with no external flushing) and had around 20% wear on the roughing electrode (1st of 3 electrodes total).

For more information on these and other technological advancements in EDM from Makino, go to www.makino.com, or contact me at jeff.kiszonas@makino.com.

Accuracy | Cycle Time Reduction | High Speed Burning
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