The latest advances in automation and combined machine technologies can bring your EDM operations forward by leaps and bounds.

At the simple end of the automation spectrum, mechanical toolchangers can allow EDM machines to run unmanned. This process is similar to automated cutting toolchangers in CNC milling applications. In the case of EDM drilling, toolchangers store and change out the electrode tubes, while sinker EDM toolchangers store and change out electrodes. Most EDM toolchangers hold between eight and 20 tools at a time, but can go as high as 48.

Robots go one step further, holding and changing out more tools and also changing out guides on EDM drills, when needed. They can also change out workpieces on the machine table to facilitate continuous unattended or overnight machining.

Some manufacturers have employed sophisticated automated processes that combine multiple machining technologies—such as waterjet and EDM—to maximize automated run time while saving time and money. Another example is combining a milling center to mill a graphite electrode, a CNC sinker EDM to burn the mold cavity and a CMM to measure the finished part. This type of turnkey system can facilitate total lights-out manufacturing for long periods of time—freeing up operators to focus on the higher-level tasks, which can add significant value to businesses.