Diesinking EDM

Charmilles’ (Lincolnshire, IL) ROBOFORM 350 MicroTEC diesinking EDM offers innovations in precision, speed and productivity for even the smallest die and mold applications.

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Charmilles’ (Lincolnshire, IL) ROBOFORM 350 MicroTEC diesinking EDM offers innovations in precision, speed and productivity for even the smallest die and mold applications. In industries including automotive, aerospace, electrical connections, medical and watch making, miniaturization of components and the precision of geometric shapes is of the utmost importance to ensure that finished products work correctly. This necessitates the development of increasingly smaller molds. To meet these increasingly demanding requirements, this machine integrates new discharge circuitry with the double thermostabilization system. The new MicroTEC discharge circuitry enables EDM power to be modulated, with the flexibility necessary to maximize material removal, while allowing a reduced electrode undersize of ?0.002 in. This allows for higher machining outputs, while maintaining the geometry of the electrodes due to an extremely low wear rate. The machine’s double thermostabilization system prevents the impact of temperature variations, allowing for maximum accuracy. Pulsed air, circulating in the cabin, is cooled in real time according to the temperature of the dielectric, by a double differential temperature probe. The whole of the main frame and the X, Y and Z axes are thermostabilized in the same way as the whole of the machine. Circulation of the dielectric is integrated into the work table, which prevents the risk of thermal shocks when filling the tank.