To accomplish high-precision machining of complex molds and dies, close tolerances and favorable surface finishes are essential. The result, in many cases, is lengthy throughput time. According to Mazak Corp., such machining can now be accomplished, often to the degree that manual polishing is eliminated, with its new Super Mold Maker 2500ú.
Standard features such as a 40-hp, 25,000-rpm spindle with 30-tool magazine; 0.8-second tool-change time; and a machining area of 40.1" × 22.0" × 18.1" enhance machining performance. Three-phase spindle balancing can also reduce spindle vibration from 0.0012" to 0.000059", while the base has modified reinforcement ribs and a wider mounting span for linear-guide blocks to improve rigidity. Linear guides and a new large-inertia motor for superior servo rigidity contribute to an interpolation variance of less than 0.0004".
Also included is a Fanuc 18i CNC, which allows users to chose from as many as 10 selectable cutting parameters for each workpiece. High-resolution scale feedback of 0.000002" is standard for all axes.