The ONA die-sinking machines are programmed at the controller because the actual axis movements are comparatively straightforward—just position and sink down—and the company has macros and subroutines set up, which reduces programming time. An advantage of staying with a trusted machine technology supplier such as ONA is that the familiar environment from machine to machine helps the operators’ confidence.
Although the NX3 EDM has a new controller, similarities between it and older controls shorten the learning curve. The operating software has the look and feel of Windows, and a training simulator runs on a desktop PC to support operator training away from the machine. Also, any issues with NC programs can be checked there by the user with ONA engineers.
A vast array of standard cutting-technology data is contained in the control system. C&M Mould Tools uses this to create its own user technology of modified standard settings that work effectively.
The latest ONA machine is especially quick. On a project for another toolmaker that required detailed die-sink erosion with supplied electrodes, the company started the work with the expectation of struggling with the tight lead time. However, the NX3 completed the job some 12 hours ahead of the estimate.
C&M Mould Tools invests in the best machines for a variety of reasons. “We believe you only get what you pay for,” concludes Moth, “and we must be able to confidently run as many machines as possible through the night and into the weekend to remain efficient. Even when unmanned, the ONA EDM machines are not backed off; they operate at full speed.”
ONA Electro-Erosion S.A.