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Wednesday, 10 January 2018

Feed drives in CNC milling machines are provided by

  By GK Planet Team       Wednesday, 10 January 2018
Q. Feed drives in CNC milling machines are provided by

A. Synchronous motors
B. Induction motors
C. Stepper motors
D. Servomotors

Answer: Servomotors

Computer Numeric Control (CNC) Machine
CNC milling is a specific form of computer numerical controlled (CNC) machining.Milling itself is a machining process similar to both drilling and cutting, and able to achieve many of the operations performed by cutting and drilling machines. Like drilling, milling uses a rotating cylindrical cutting tool.
CNC machines function using either stepper or servo motors, each possessing its own advantages and disadvantages.
The function of the servo is to receive a control signal that represents a desired output position of the servo shaft, and apply power to its DC motor until its shaft turns to that position.
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