UNIT 1:
Evolution of CNC Technology, Principles, features, advantages, applications
Turning center & Machining center
5 Axis and 6 Axis machining center
UNIT 2:
CNC Machine building, Structural details
Elements used to convert the rotary motion to a linear motion
Guide ways –Friction, Anti friction and other types of Guide ways
UNIT 3:
3-phase AC induction motor
Feed drives – stepper motor, servo motor principle
DC and AC servomotors, Open loop and closed loop control
Axis measuring system– synchro, synchro-resolver, gratings
UNIT 4:
Coordinate system, structure of a part program
G&M Codes, manual part programming
Milling- Pocket cutting-drilling, APT Language
UNIT 5:
Economics of CNC, maintenance of CNC
Preventive Maintenance, other maintenance requirements
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
