TOOL Use in CNC Shop, Programing of CNC Shop, Maching OF Cnc Shop,

1. PRESENTED BY
Avanesh kumar pal
B.tech (ME) Final year

2. TABLE OF CONTENTS
1. Introductoin of industry .
2. Introduction to CNC.
3. Operations performed on CNC Machine.
1. Milling.
1. Cnc machine used in milling .
2. Tool used .
3. Tool holders.
2. Turning.
1. Cnc machine used in turning .
2. Tool used .
3. Grinding machine used in Grinding.
1. Abrasive types.
4. Measuring instrument.
5. Project overview .

3. INTRODUCTION OF INDUSTRY
 LOHIA GROUP, promoted by a well-known
business family of North India.
 has a long tradition of excellence is currently
active in machinery, mechanical sub-contracting,
textiles and engineering plastics.
 The leadership of its Chairman Mr. Raj Kumar
Lohia.

4. COMPANY PROFILE
Lohia Group
Lohia Corp
Limited
(LCL)
LCL,Panki Unit
Loom Machine
LCL,Chaubeypur
unit
Tape Extrusion Winder Division CNC Shop
Research and
Development
Thread India
Limited
(TIL)

5. INTRODUCTION TO CNC
 Cartesian Coordinate System :-
FIG-1 Intersecting lines form right angles and ) FIG- 2 The three-dimensional
establish the zero point (Allen-Bradley) . coordinate planes (axes) used
in CNC.

6.  A X2.000 Y2.000
 B X1.000 Y-2.000

7.  Machine Types :-
 Lathe :- Most lathes are programmed on two axes.
 The X axis controls the cross motion of the cutting tool. Negative X (X-)
moves the tool towards the spindle centreline ; positive X moves the tool
away from the spindle centreline .
 The Z axis controls the carriage travel toward or away from the
headstock.
Fig.The main axes of a lathe or turning center

8.  Milling Machine :-
 The milling machine can be programmed on three axes:
• The X axis controls the table movement left or right.
• The Y axis controls the table movement toward or away from the
column.
• The Z axis controls the vertical (up or down) movement of the knee or
spindle.

9. PROGRAMMING SYSTEMS :-
 Two types of programming modes, the incremental system and the
absolute system, are used for CNC.
 Positioning Reference Point Systems:
1. Incremental program :-

10. 2) Absolute program :-

11. CODES
 G Code:
G Code is used to control to position and
function of the main machine and tool
position. G code is defined preparatory
code.
 M Code:
M code is used to control other functions on
a machine tool such as the spindle and tool
changing. M code controls the
miscellaneous functions of the machine tool.

12. LIST OF BASIC G CODES
CODE GROUP FUNCTION
G00 01 RAPID POSITIONING MOTION
G01 01 LINEAR INTERPOLATION
G02 01 CIRCULAR INTERPOLATION(CW)
G03 01 CIRCULAR INTERPOLATION(CCW)
G04 00 DWELL
G10 00 PROGRAMMABLE OFFSET SETTING
G28 00 MACHINE ZERO RETURN
G20 06 INCH COORDINATE POSITIONING
G21 06 METRIC COORDINATE POSITIONING
G40 07 CUTTER COMPENSATION CANCEL
G41 07 CUTTER COMPENSATION LEFT
G42 07 CUTTER COMPENSATION RIGHT
G43 08 TOOL LENGTH COMPENSATION
G54 14 WORK OFFSET POSITIONING COORDINATE
G80 09 CANCEL CANNED CYCLE
G81 09 DRILL CANNED CYCLE
G83 09 PECK DRILL DEEP HOLE CANNED
G84 09 TAPPING CANNED CYCLE
G85 09 BORE IN BORE OUT CANNED CYCLE
G90 03 ABSOLUTE POSITIONING COMMAND
G91 03 INCREMENTAL POSITIONING COMMAND
G98 04 CANNED CYCLE INITIAL POINT RETURN
G99 04 Canned cycle “R” PLANE RETURN

13. LIST OF BASIC M CODES
M CODE FUNCTION
M00 PROGRAM STOP
M01 OPTIONAL PROGRAM STOP
M02 PROGRAM END
M03 SPINDLE ON(CW)
M04 SPINDLE ON(CCW)
M05 SPINDLE STOP
M06 TOOL CHANGE
M08 COOLANT ON
M09 COOLANT OFF
M13 SPINDLE ON(CW) WITH
M14 SPINDLE ON(CCW) WITH
M15 M13/M14 OFF
M29 RIGID TAPPING
M30 PROGRAM END AND REWIND
M98 MAIN TAPE CALL SUBROUTINE
M99 SUBROUTINE RETURN

14. MILLING
VERTICLE CENTRE NEXUS 535C - II

15. MILLING TOOLS
1. END MILL:
2. BALL END MILLS :-

16. 3. FACE MILLS :
4. TWIST DRILLS:
5. SPOT AND CENTRE DRILLS:

17. TOOL HOLDERS:
COLLET CHUCK

18. TURNING
MAZAK QUICK TURN SMART 250

19. GRINDING MACHINE
 Grinding is a abrasive machining process
that uses a grinding wheel as the cutting
tool.

20.  GRINDING WHEEL:-A grinding wheel consists of abrasive
particles and bonding material. The bonding material holds the particles in
place and establishes the shape and structure of the wheel.
 GRINDING OPERATIONS:-
 1)Surface grinding,
 2)Cylindrical grinding,
 3)Centerless grinding

21. Cylindrical grinding,
Centerless grinding

22. MEASURING INSTRUMENT
1).Vernier calliper :- L.C. =0.02mm
2).Micrometer Calliper:-L.C.=0.01mm

23. 3) GROOVE CALIPER:- L.C.=0.025mm
4)PLUG GAUGE:-
5)PUPPY DIAL:- LC - 2µm

24. PROJECT OVERVIEW
 The main motto of the training was to bless myself with the boon
of engineering technique required for complete production in the
case of CNC machines.
 At Lohia Corp. Limited I came to know how various parts.
 which are required in the assembly of various machines such as
tapeline and winder are produced at the CNC shop.
 I came to know about the various tools which are used in the
manufacturing process as well as the measuring instruments
involved in it.
 Learning about the automatic working of the machines as well as
the G and M coding involved was a truly enriching experience.
 Finally and most importantly I came to know how to deal with the
work force which are the roots of any organization.