SELF

2023 JULLY

SPECIAL

TECHINICAL SUBJECT BOOK

ITI, DIPLOMA, DEGREE ENGINEEING

INDEX OF BOOK SECTION A) OPERATING OF MACHINE Chapter1 Introduction of CNC technology. Chapter2 Fundamental Code of CNC. Chapter3 Theory of Machine: 1) CNC Turning center 2) VMC- vertical machining center 3) HMC- horizontal machining center Chapter4 Details of the Control panel: FANUC Chapter5 Instrument and measurement technique 1) Vernier caliper 2) Micrometer 3) Other gauges SECTION B) SETTING OF MACHINES Chapter6 Turning Center Job Zero Offset (Geometry Offset) Jaw Alignment, Jaw Boring, Jaw undercut Process Hydraulic oil pressure setting Chapter7 VMC machine setting 1)Job Zero at the corner of the job 2)Job Zero at the center of the job 3)Job Zero at the hole or fixture pin center 4)Tool Height offset method (Z-axis offset) SECTION C) CUTTING TOOL SELECTION METHOD Chapter8 Tool manufacturer list, Tool material, insert grades and material ISO coding, Cutting Parameter recommended, Insert failures and remedies Chapter9 Tool holder order Specification 1)External tool holder (Outer Diameter tool) 2)Internal tool holder (Boring bar) SECTION D) PROGRAMING SECTION Chapter10 Drawing reading-Tool Path Calculation, taper Calculation, Arc Calculation. Engineering Symbol & GD&T Symbol Chapter11 Description of G code (Preparatory Function) Chapter12 Description of M code (Miscellaneous Function) Chapter12 Speed and Feed calculation PROGRAMMING OF CNC TURNING Chapter14 The program format of FANUC control Chapter15 Simple turning program, radius turning program, Taper (degree) turning program Chapter16 Multiple passes program using G90 and G94 Cycle 1) G90- Step turning cycle 2) G94- face cut cycle Chapter17 Multiple passes Stock removal cycle (G71 and G72) Chapter18 Pattern repeat cycle (G73) for casting forging material Chapter19 Threading cutting program. Type of thread, threading calculation, threading tool G92 thread cut cycle and G76 thread cut cycle BSP Threading and NPT threading Chapter20 Groove-cutting process program G75 grooving cycle, Grooving tool selection Chapter21 drilling process program type of drill tool, cycle G74 drilling cycle Chapter 22 Tool nose radius compensation code G40 G41 G42 code Solved exercises and Unsolved exercises for Turning PROGRAMMING Milling (VMC) Chapter23 Program format for Fanuc control Chapter24 Face milling process Program, Chapter25 Drilling tapping Process Program, Chapter26 PCD holing program (Polar Coordinate) Chapter27 Hole finishing process Reaming Cycle G85 and Boring Cycle G76 Chapter28 Concept of sub-programing Chapter29 Slotting/pocket machining process Chapter30 Side milling program Chapter31 Hole milling process (Interpolation process) Chapter32 End milling, profile milling Solved exercises and Unsolved exercises for Milling

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