presented by vishal pachori student of gla university mathura dept of mechanical engineering.

1. SUBMITTED BY
VISHAL PACHORI
DEPT. OF MECHANICAL ENGG.
GLA UNIVERSITY MATHURA

2. COMPANY PROFILE
Name of industries:-
Hydraulic power solution ,
Plot no. 39, balaji complex
Sec.- 23, faridabad -121005
Haryana, india
Ph.: +91-4088287
Website:-www.hpsindia.co.in
Email:- hpsfbd@gmail.com
Sales@hpsindia.co.in
Contact Person:- Rahul Sharma
Designation : Senior Engineer
Contact no.: 09990590590
Department : CNC

3. PRODUCT OF COMPANY
 Hoses Assemblies
 Hose End Fittings
 Hoses hydraulic
 Tube Assemblies
 Flexible Metal Assemblies
 Adaptors
 SAE Flanges
 Tube Fittings
 Quick Release Couplings
 Spiral Sleeves & Spring Gaurd
 Hose Clamps
 Minimess Hoses & Fittings
 Hose Crimping Machines

4. Overview of Presentation
 CNC Introduction
 Apllications of CNC
 Elements of CNC Machine
 How CNC Works
 Programming Key Letters
 Table of Important M codes
 Table of Important G codes
 Cutting tools and its Characteristics
 Types of Tool materials
 Inserts

5. CNC Introduction
A numerical control
system in which the data
handling, control sequences,
and response to input is
determined by an on-board
computer system at the
machine tool.

6. Apllications of CNC
CNC is widely used for:-
lathe,
drill press
milling machine
grinding unit
laser
sheet-metal press

7. Elements of CNC Machine
 Input Device
 Machine Control Unit
 Machine Tool

8. Elements of CNC Machine
 Input Device:- In computing, an input device is a peripheral (piece of computer
hardware equipment) used to provide data and control signals to an information
processing system such as a computer or information appliance. Examples of input
devices include keyboards, mouse, scanners, digital cameras
 Machine Control Unit:- The machine control unit (MCU) is the heart of a CNC system.
It is used to perform the following functions: To read the coded instructions. To
decode the coded instructions. To implement interpolations (linear, circular, and
helical) to generate axis motion commands
 Machine Tool :-machine tool is the mechanical device that perform actual machining
operation like- cutting ,drilling., facing, milling, knurling, grindin etc

10. How CNC Works
 Controlled by G and M codes.
 These are number values and co-ordinates.
 Each number or code is assigned to a particular operation.
 Typed in manually to CAD by machine operators.
 G & M codes are automatically generated by the computer
software.

11. Programming Key Letters
 O - Program number (Used for program identification)
 N - Sequence number (Used for line identification)
 G - Preparatory function
 X - X axis designation
 Y - Y axis designation
 Z - Z axis designation
 R - Radius designation
 F – Feed rate designation
 S - Spindle speed designation
 H - Tool length offset designation
 D - Tool radius offset designation
 T - Tool Designation
 M - Miscellaneous function

12. Table of Important M codes
 M00 Program stop
 M01 Optional program stop
 M02 Program end
 M03 Spindle on clockwise
 M04 Spindle on counterclockwise
 M05 Spindle stop
 M06 Tool change
 M08 Coolant on
 M09 Coolant off
 M30 Program stop, reset to start

13. Table of Important G codes
G00 Rapid Transverse
G01 Linear Interpolation
G02 Circular Interpolation (CW)
G03 Circular Interpolation (CCW)
G33 Thread cutting
G78 Thread cutting cycle
G43 Tool length compensation (plus)
G44 Tool length compensation (minus)
G49 Tool length compensation cancel
G81 Drilling cycle
G90 Absolute positioning
G91 Incremental positioning

14. Cutting tools and its Characteristics
 Cutting tool is a device, used to remove unwanted materials from
given work piece for carrying out the machining process, cutting tool
is fundamental and requirement
 A cutting tool must have the following characteristics:
 Hardness
 Hot Hardness
 Toughness

15. Types of Tool materials
 High Speed Steel (HSS)
 High Carbon Steel (HCS)
 Cast Alloy
 Cemented Carbide
 Ceramic
 Diamond
 Cobalt

17. Inserts
 Inserts are removable cutting tips, which means they
are not brazed or welded to the tool body.
 The strength of the inserts also depends upon the
shape of the inserts.

19. Advantages of CNC
i. - Easier to program;
ii. - Easy storage of existing programs;
iii. - Easy to change a program
iv. - Avoids human errors
v. - CNC machines are safe to operate
vi. - higher productivity, better quality
vii. -Volume of production is very high
viii. -Less paper work

20. Disadvantage of CNC
i. -Costly setup, skilled operators
ii. - Computers, programming knowledge required
iii. - Maintenance is difficult

21. Thank You