HIGH-SPEED MILLING INNOVATION: LINEAR MOTORS

The new HSM 400U LP is the latest high-speed milling innovation from GF AgieCharmilles (Lincolnshire, IL). Designed for ultimate precision and supreme surface quality, the HSM 400U LP provides 5-axis simultaneous high-speed machining and delivers powerful performance and precision on all five axes.

The machine is extremely dynamic and fast, and achieves speeds up to 250 rpm on the rotational axis and up to 150 rpm on the swivel axis, with a B-axis swivel range of 220 deg. The machining center also uses a liquid cooled, linear direct drive motor technology to allow for short setting times and high dynamic rigidity of the attitude control. Additionally, the linear direct drive combines with central oil lubrication to reduce friction-induced wear and ensure excellent, long-term precision.

With powerful vector spindles available at 30,000 rpm, 42,000 rpm or 54,000 rpm, the HSM 400U LP also provides excellent surface finish and part detail, while significantly reducing machining time for semi-finishing and finishing operations. The machine?s high dynamics and 1.7 g acceleration help facilitate the reduction of non-productive time and help to maximize spindle utilization. This machine tool possesses the capability for 24/7 unattended machining using the optional pallet changer with 20/48 pallets. This fully integrable pallet magazine further enhances the machine?s automation potential. The pallet changer can be loaded while the machine is cutting, leading to minimum idle time for the machining center.

The HSM 400U LP comes equipped with a Heidenhain iTNC 530 control system and smart machining modules that provide advanced levels of monitoring critical to the production of high value precision medical, aerospace and mold inserts. The system allows the machine to automatically check and evaluate tools and workpieces, inspect tools for breakage and perform measurements of the workpiece. Additionally, the smart machine modules automatically monitor spindle vibration, calibrate machine geometry and transmit process status messages to an operator?s cell phone. The unique monobloc bridge design achieves high precision by maintaining a high level of rigidity. The machine?s polymer granite construction provides increased performance in the areas of vibration dampening and thermal stability, extending tool life and reducing operating cost. Also, attention to the ergonomics of the machine?s design allows for uncharacteristically easy access to workpieces.

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