Evolution of CNC Technology, principles, features, advantages, applications, CNC and DNC concept, classification of CNC Machines– turning center, machining center-5 Axis and 6 Axis machining centre, types of control systems– -ATC-Turret Mechanism.

CNC Machine building, structural details, configuration and design, guide ways –Friction, Anti friction and other types of guide ways, elements used to convert the rotary motion to a linear motion–Screw and nut, recirculating ball screw.

Spindle drives–DC shunt motor, 3-phaseAC induction motor, feed drives–stepper motor, servo principle, DC and AC servomotors, Open loop and closed loop control, Axis measuring system– synchro, synchro-resolver, gratings

Coordinate system, structure of a part program, G&M Codes, manual part programming, tool length compensation, cutter radius and tool nose radius compensation, indexing, subroutines, Canned cycle- Turning, grooving, thread cutting, Milling- Pocket cutting-drilling, APT Language

Economics of CNC, maintenance of CNC Factors influencing selection of CNC Machines – Cost of operation of CNC Machines –Practical aspects of introducing CNC machines in industries – Maintenance features of CNC Machines – Preventive Maintenance, other maintenance requirements