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Home / Lights-Out Multi-Tasking with 5-Axis Hybrid Machining/Grinding

Lights-Out Multi-Tasking with 5-Axis Hybrid Machining/Grinding

Vertex Hybrid G 5-axis vertical machining/grinding centers from Mitsui Seiki provide CMM-level precision in critical high speed milling and grinding applications for lights-out machining of die and mold, optical and tooling components.

One example of the CMM-level precision and critical high speed capabilities of Vertex 5-axis Hybrid G 55-5X / 75-5X / 100-5X vertical machining/grinding centers from Mitsui Seiki is the combination of milling and grinding operations on D2 steel plate that is hardened and heat-treated to 60-62 HRC. A form milling tool can rough and pre-finish corner relief, followed by a form-grinding wheel for finishing. After a rounded triangular pocket is milled in the part’s center, a variety of grinding wheels can form critical step features.
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Vertex 5-axis Hybrid G 55-5X / 75-5X / 100-5X vertical machining/grinding centers from Mitsui Seiki USA, Inc. (Franklin Lakes, NJ) provide CMM-level precision in critical high speed milling and grinding applications such as lights-out machining of die and mold, optical and tooling components. These machines are capable of 0.0003 in (7.5 µm) or better precision in 3+2 or fully simultaneous 5-axis machining, carrying out high speed milling and grinding via a 25,000 rpm main spindle and ATC changeable air-spindles of 40,000 rpm to 90,000 rpm capacity. They take advantage of engineered accuracy and rigidity to allow volumetric calibration according to ISO10320-2 using the latest FANUC 3D volumetric compensation features and enable use of in-process 3D (NIST) traceable measuring capability. A part spinning process produces tangential planetary work spindle alignment, emulating the U-axis motion of jig grinding equipment.

These machines can employ trochoidal dynamic power or high-speed cutting strategies up to 90,000 rpm. Key features include automatic in-process grinding wheel dressing and size measurement and wheel calibration. AE sensors and software guided application strategies monitor milling and grinding process finishes. Vertex machines feature proprietary cast iron beds and a solid “box-in-box” design that provide superior rigidity, stiffness and agility. Innovative machine geometry results in positioning accuracy in the X, Y, and Z-axes of 0.001 mm (0.000040 in), ±6 arc seconds in A-axis, and ±4 arc seconds in the C-axis. Hand-scraped guideways maximize precision. An advanced thermal compensation system assures size consistency and glass scales provide minimum resolution of 0.001 mm.

Mitsui Seiki USA, Inc., 563 Commerce Street, Franklin Lakes, NJ 07417, 201-337-1300, Fax: 201-337-3680, www.mitsuiseiki.com.

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