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With accuracy of ±1 micron, the Womajet/microWaterjet is designed for precision cutting of materials that react negatively to heat generated during other machining processes. Developed by machine builder MDC Max Daetwyler AG and specialist waterjet company Waterjet AG, in collaboration with NUM, the machine is also said to consume less water and abrasive than other waterjet machines.
The machine provides a stable, precise and repeatable manufacturing process capable of creating complex contours, the developers say. With a cutting stream diameter of less than 300 microns, the machine can handle land widths as narrow as 20 microns (0.02 mm) and cut materials at a rate as fast as 4,000 mm/min. All three axes are driven by NUMDrive C servos, which have a high power density to minimize the size of the control cabinet. Overall control of the machine is handled by a NUM Flexium CNC system, equipped with a NUM FS152i HMI for operator input commands.
The machine is suitable for a variety of materials and applications including biocompatible materials for medical applications; Kevlar, carbon- and glass-fiber materials such as those used in the automotive industry; specialized materials and laminates used in the aerospace industry; and precision components for the watch-making industry.