Find required spindle rotational speed N (rpm) for external turning of a workpie...
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Find required spindle rotational speed N (rpm) for external turning of a workpiece made of steel. Outer radius of the workpiece is R=122.1 mm and cutting speed V=837 m/min.
Cutting speed for turning is calculated as:V=(π·D·N)/1000,
where D - workpiece diameter, mm; N - rotational speed, rev/min.
Answer provide as full number.
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