Hyundai Wia’s LM1600/1800TT twin-spindle, multitasking CNC turning center is designed to process complex parts in volume production runs. According to the company, the machine is really two machines in one--two lathes and two mills. It features upper and lower turrets and available Y and C axes. High-power, built-in spindle motors as well as upper and lower turrets increase productivity. The two synchronized, facing spindles are designed to reduce idle time, and BMT-type turrets are said to increase accuracy and power.
The machine can perform multiple operations (milling and turning) in a single setup, compressing lead times and enabling smaller lot sizes to be processed efficiently and cost-effectively, the company says. Machines also can run untended, or one operator can run multiple machines. With fewer fixtures and tools, and reduced labor, non-value-added time also is said to decrease.
The turning center features a 45-degree, slant-bed design developed using finite element analysis (FEA) to ensure a stable platform for powerful, precise cutting. All axes are driven by high-precision double-nut ballscrews to virtually eliminate thermal growth and increase accuracy. The pretensioned and double-anchored design improves positioning and repeatability with virtually no thermal growth. Rapid high-speed axis movement is achieved by the use of linear-motion guideways in the Z axis, complimented by box guideways in the X and Y axes for added rigidity. This combination is designed to reduce non-cutting time and decrease machining time for greater productivity. Rapid-traverse rates measure 20/20 m/min. (787 ipm) in the X1/X2 axes, 40/40 m/min. (1,575 ipm) on the Z1/Z2 axes, and 7.5 m/min. (295 ipm) on the Y axis.
Other features include live tooling, a Q setter and tool monitoring, and Fanuc 31iA CNC control, among other features.
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This machine can run for a long time without any operator intervention, and users can machine finished parts from slug stock or cast blanks while achieving the same high productivity as if they were machining from barstock, the company says.