Five-Axis VMC for Aerospace Machining

Makino’s D300 five-axis is designed specifically for small, complex, 3D contouring of high-quality parts typically for aerospace, medical, job shop and die/mold applications

New Product From: 6/27/2012 Modern Machine Shop

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Makino’s D300 five-axis is designed specifically for small, complex, 3D contouring of high-quality parts typically for aerospace, medical, job shop and die/mold applications. From roughing to finishing, the D300 is said to enable manufacturers to reduce setups, slash cycle times and improve accuracy of tough machining processes. The rigidity and thermal stability of its direct-drive rotary table ensures sustained dynamic accuracy, while its speed provides rapid positioning and feed rates to reduce overall lead-times, the company says.
 
The D300 worktable offers a work area diameter of 300mm, accommodating workpiece sizes up to 450 × 270 mm and 120 kg. The machine provides X- Y-Z travels of 300 × 500 × 350 mm at feed rates as high as 60,000 mm per minute. Rotary table axes offer rotational motion of 240 degrees (±120 degrees) on the A-axis and full 360-degree continuous rotation on the C axis. It comes standard with a 15,000-rpm HSK-A63 spindle with 120 Nm (42 Nm continuous) of torque for flexible, high speed machining of workpiece materials including steel, aluminum and titanium. Optional spindle configurations include a 20,000-rpm HSK-A63 spindle and 30,000-rpm HSK-F63 spindle.
 
Direct-drive motor technology is used in the machine’s C-axis rotary table and A-axis trunnion for positioning accuracy and repeatability. The high-torque direct-drive motors also provide quality acceleration and rotary speed characteristics that can reduce cycle times of complex five-axis simultaneous machining applications by up to 60 percent, according to the company. The length of the trunnion assembly runs parallel to the X-axis motion, making the trunnion assembly deflection-free during quick axis motion for greater accuracy than traditional configurations. The machine features roller linear guides across all linear axes for outstanding rigidity and stiffness while maintaining very productive rapid and federates.
 

The D300 uses the Makino Professional 5 Control, which provides a Windows CE graphical user interface with touch-screen access, and the networking and storage capabilities of a data center. This data center features a flexible, user-friendly program and data management for quick, seamless changes from one setup to the next. Its built-in Ethernet networking capability offers ready integration to off-machine program storage. The machine also features the company’s Super Geometric Intelligence (SGI.4) software developed specifically for high-feed-rate, tight-tolerance machining of contoured shapes. In addition, it incorporates control enhancements to improve five-axis machining performance and operability, such as tool center point control and user-friendly control functions to prevent interference between the spindle and trunnion during automatic operation. 

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