Calculate the spindle speed for a Lathe Machine, if the cutting speed for a mild steel material workpiece is 25 m/min and the diameter of the cylindrical workpiece is 42 mm. (Write the answers with two decimal places for eg. 478.54) Spindle Speed N (rpm)=

Calculate the spindle speed for a Lathe Machine, if the cutting speed for a mild steel material workpiece is 25 m/min and the diameter of the cylindrical workpiece is 42 mm. (Write the answers with two decimal places for eg. 478.54) Spindle Speed N (rpm)=

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 3RQ

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Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

Calculate the spindle speed for a Lathe Machine, if the cutting speed for a mild steel material workpiece is 25 m/min and the diameter of the cylindrical workpiece is 42 mm.

(Write the answers with two decimal places for eg. 478.54)

Spindle Speed N (rpm)=

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