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
Elements used to convert the rotary motion to a linear motion
Elements used to convert the rotary motion to a linear motion
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
tool length compensation, cutter radius
tool nose radius compensation, indexing, subroutines
Canned cycle- Turning, grooving, thread cutting
