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Siemens’ Sinumerik now includes 4-axis turning

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The expanded contour machining cycle for Siemens Sinumerik CNC controllers now facilitates 4-axis turning on lathes. In such operations, two turning tools opposite one another cut the workpiece simultaneously, enabling the machining time to be reduced. In addition, the two opposed turning tools prevent workpiece distortion, thus improving dimensional accuracy, particularly on long, thin workpieces.

An advantage of the Siemens controls is that the 4-axis turning process can be programmed directly on the Sinumerik CNC without a CADCAM system. With just two additional parameters, the user expands the machining process with two tools – the Sinumerik contour machining cycle creating the CNC sequences automatically.

In 4-axis turning, a distinction is made between synchronous and asynchronous path control, with the channel-based Sinumerik executing two independent CNC programs simultaneously.