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HD14 : CNC PROGRAMMING
1 LITERATURE SURVEY Chronological Development of CNC Machine, Machining Time , Non-machining Time , Loading and Unloading Time
2 INTRODUCTION TO CNC MACHINE Definition, Classifications of Numerical Control System, Advantages of CNC Machine, Principle of Operation of CNC Machine , Open Loop CNC System , Closed Loop CNC System, Distance Measurement, Axis Arrangement of CNC Machines , Types of CNC Machines, Configuration Of CNC Machines, Parts Construction of CNC Machines ,Coordinate Systems, Grid System, Reference Points, Machine Origin, Part Origin, Program Origin, Coding System, CNC Syntax , Computer Word Address Format, End of Block Code , Accuracy and Repeatability of CNC Machine
3 CONSTRUCTION FEATURES OF CNC MACHINES Constructional Features of CNC Machines, Structure , Slide Ways, Spindle Drive , Feed Drive, Position Measuring Devices, Selection of CNC Machine , Selection Guidelines , Choosing a Machining Center, Comparison Chart of Specification and Features of a Horizontal Spindle Machining Center, Typical Specifications for a Horizontal Spindle Machining Center, Typical Format for Comparison of CNC System.
4 CNC MACHINE OPERATING SYSTEM FANUC Operating System , Flow Chart of Automatic Operation, Sinumerik/hinumerik Operating System, List of Operating Switches.
5 PROGRAMMABLE LOGIC CONTROLLER (PLC) CHARACTERISTICS G-function (Preparatory Function), G-Codes , Cutter Compensation Function , Incremental Programming , Main Program ,Subprogram ,List of G-Function , List of M-function , Other Functions ,
6 SETTING THE MACHINE Home Position , Coordinate System Preset, Tool Offset Consideration , Tool Length Offset , Tool Offset Adjustment, Setting up Tools on the Lathe , Imaginary Tool Tip Method , CNC Turning Centre , Setting Work Coordinate System , Tool Offset , Tool data , Setting up Tools on the Machining Centre .
7 CNC PROGRAMMING CNC Machining Centre, CNC Turning Centre , Automatically Programmed Tools (APT) Language , Motion Statements ,
8 CNC METAL CUTTING TOOLS Characteristics of Tool Materials, Cutting Tool Materials , Cutting Tool Material Chart ,Calculation Formulae for Turning , Calculation formulae for Milling , ISO Designation of Tool, ISO Designation for Round Shank Tools, ISO Designation for Cartridges , Widax -gw Full Form, ISO Designation for Indexable inserts , Chart for Determining Spindle Speeds , Recommended Machining Parameters, Nomogram, For Power/Machining Parameters , Widalon/Widadur/Widia Grades for Machining, Grades for Machining .
9 TROUBLE SHOOTING OF MACHINING PROCESSES Drilling, Tapping, Reaming, Spot Facing, Turning, Boring, Milling
10 INTRODUCTION TO FMS, ClM SYSTEM AND ROBOTS Flexible Manufacturing System (FMS), Computer Integrated Manufacturing (CIM), Robots
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