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A new NC table driven by twin linear motors has been developed for us machining curved surfaces by lathe turning. This turning method enables us to machine the un-axisymmetric noncircular profiles with high acceleration and deceleration. The key factor for this turning method is to precise trace trajectories on a designed surface. The NC table requires a dynamic response that leads to a rapid motion...
The machining of 3D curved surfaces with an un-axisymmetric axis by lathe turning is proposed considering the best machinable tool layout. The best offset tool layout from the central axis of a spindle enables us to machine curved surfaces and to obtain a long tool life for hard material workpieces using a rotary tool. A dedicated NC program for the 3D surface using the original CAM system has been...
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