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178 MMS June 2014 mmsonline.com modern equipment review Spotlight: EDM Makino offers its U3 and U6 general-purpose wire EDMs designed for ease of operation and versa- tilit y. T he U3 of fe rs X-, Y- and Z-a xis travels measuring 370 × 270 × 220 mm, and accom- modates workpieces ranging to 770 × 590 × 220 mm with a payload of 1,322 lbs. The U6 features X-, Y- and Z-a xis travels measuring 650 × 450 × 420 mm, and accommodates work- pieces ranging to 1,000 × 800 × 400 mm with a 3,307-lb payload. Wire eDMs ProviDe versatility sustainable long-term accuracy. The company's Pro-Tech circuit provides electronic galvanic protection to the workpiece, minimizing rusting and oxidation. The machines also are equipped with Makino's Hyper-I machine control with 24" HD touchscreen. The control can be customized to individual operators or shifts, and an optional dual-display screen can be configured for use with an onboard CAD/CAM system. Both machines are available in an optional high-energy applied technology (HEAT) configu- r a t i o n w h i c h i n c o r p o r a te s h i g h e r- p r e s s u r e flush pumps and a large-capacity four-filter filtra- tion system designed to increase speed and accuracy in workpieces with poor or dif ficult flushing conditions. Makino, call 800-552-3288 or visit makino.com. eDM enables large-Part ProDuction Available from MC Machinery, the Mitsubishi EDM MV4800 Advance offers larger travels than other MV series machines, enabling production of large workpieces and submerged cutting as deep as 20". The wire EDM can accommodate workpieces as large as 53.1" × 43.3" × 20.0" with machine travels measuring 31.5" × 23.6" × 20.0". The EDMs can be equipped with either con- ventional round or Split V wire-guide configurations to accommodate virtually any material types and provide flushing conditions from 0.004" to 0.012" in diameter wire (0.1 to 0.3 mm in diameter). A cutting condition library provides optimized con- ditions for standard hard brass wires, high-speed coated wires and high-taper sof t wires. T he company's three-pass HyperCut process tech- nology is said to enable surface finishes as fine as 3-micron Rz in standard tool steels. The machines' entire bed casting is used as a dielectric reser voir, reducing its footprint and eliminating the need for additional external fluid tanks, in addition to promoting rigidity and thermal stability. The stationary table is said to also ensure 0614_MMS_merspot.indd 178 5/14/2014 8:58:49 AM