1. No category

CAD/CAM Laboratory Manual 2014
`
KONGU ENGINEERING COLLEGE
(Autonomous)
PERUNDURAI, ERODE - 638 052
DEPARTMENT OF MECHANICAL ENGINEERING
11ME507 - CAD/CAM LABORATORY
LABORATORY MANUAL
Prepared by
FACULTYOF MECHANICAL ENGINEERING
KONGU ENGINEERING COLLEGE
(Autonomous)
PERUNDURAI, ERODE-638 052
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 052
CAD/CAM Laboratory Manual 2014
11ME507
CAD/CAM LABORATORY
L
0
T
0
P
3
C
1
Objective:
1. To teach Students about solid modeling of machine components and assembly of components
using CAD software.
2. To demonstrate students the CNC code generation using CAM software and Manual part
programming in CNC machines for various operations.
Prerequisites:
1. CAD/CAM/CIM
2. Machine Drawing
LIST OF EXPERIMENTS
COMPUTER AIDED DESIGN (CAD)
18
Objective:
To learn and obtain the knowledge in creating a model by utilizing the softwares.
1 3D Part modeling – protrusion, cut, sweep, draft, loft, blend, rib
2 Editing – Move, Pattern, Mirror, Round, Chamfer
3 Assembly – creating assembly from parts – assembly constraints
4 Conversion of 3D solid model to 2D drawing - different views, sections, isometric view and
dimensioning
5 Introduction to Surface Modeling
6 Introduction to File Import, Export – DXF, IGES, STL, STEP
7 3D modeling of machine elements likeFlanged coupling, screw jack etc.
8 Mass property calculations and interference check
COMPUTER AIDED MANUFACTURING (CAM)
Objective:
To learn and develop the skill in creating a component by utilizing the Automated Machines.
MANUAL PART PROGRAMMING (Using G and M Codes) in CNC lathe
9 Part programming for Linear and Circular interpolation.
10 Part programming using standard canned cycles for Turning.
18
MANUAL PART PROGRAMMING (using G and M codes) in CNC milling
11 Part programming for Linear and Circular interpolation and Contour motions.
12 Part programming involving canned cycles for Drilling, Peck drilling, and
Boring
SIMULATION AND NC CODE GENERATION
13 NC Code generation using CAD / CAM softwares - Post processing for standard
CNC Controls like FANUC, Simens etc.
9
TOTAL: 45
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0522 | P a g e
CAD/CAM Laboratory Manual 2014
Course Outcomes:
1. Develop various machine components and their assembly using modeling software.
2. Write part programs using G & M codes for lathe and milling operations.
3. Generate the G & M codes using MASTER CAM software.
REFERENCES / MANUALS/SOFTWARE:
Pro-E Wildfire 3.0
CATIA V5R12
Master CAM
Programme Outcomes:
A total of 13 program outcomes have been formulated for the Mechanical Engineering program. These
outcomes are defined as the skills and competencies students are expected to have at the time of graduation. The
Program Outcomes are:
Graduates will demonstrate
a. An ability to apply knowledge of mathematics, science and engineering.
b. An ability to design and conduct experiments, as well as to analyze and interpret data.
c. An ability to design a system, component, or process to meet desired needs within realistic constraints.
d. An ability to function in multidisciplinary teams.
e. An ability to identify, formulate and solve engineering problems.
f. An understanding of professional and ethical responsibility.
g. An ability to communicate effectively.
h. The broad education necessary to understand the impact of engineering solutions in a global and societal
context.
i. Recognition of the need for and an ability to engage in continuous learning.
j. Knowledge on contemporary issues.
k. An ability to use the techniques, skills and modern engineering tools necessary for engineering practice.
l. An ability to work professionally in thermal, manufacturing and mechanical systems areas including the design
and realization of such systems with the use of computational tools.
m. An ability to demonstrate knowledge and understanding of economics/financial management, project
management and entrepreneurship skills.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0523 | Pa g e
CAD/CAM Laboratory Manual 2014
Mapping of course outcome and program outcome
Course outcome of the CAD/CAM Lab is mapped with program outcomes as follows
PO
/CO
a
b
c
d
e
f
g
h
i
j
k
l
m
i)
ii)
iii)
iv)
Strong Contribution
Average
Contribution
Low Contribution
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0524 | P a g e
CAD/CAM Laboratory Manual 2014
LIST OF EXPERIMENTS:
Ex no
Description
1.
Part drawing of simple components
2.
Flange Coupling
3.
Simple Eccentric
4.
Connecting Rod
5.
Stuffing Box
6.
Study of G codes M codes used in CNC LATHE HMT CNC- T70
7.
Study of G codes M codes used in VMC 200 T MACHINING CENTRE
8.
9.
10.
11.
Programming and machining of given component using CNC Trainer
Lathe
(HMT CNC T70)
Programming and machining of a component using CNC Turning
Centre (Jobber XL)
Programming and machining of a component using CNC Turning
Centre
(Jobber XL) (Drilling and Boring)
Programming and simulation of a component using MASTERCAM
(Lathe)
12.
NC code generation using MASTER CAM LATHE
13.
NC code generation using MASTER CAM MILL
Page no
8
11
13
15
17
19
24
26
31
36
39
41
43
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0525 | Pa g e
CAD/CAM Laboratory Manual 2014
S.No
Date
Content
Page
No
Marks Awarded
CoE
(10)
Obs
(10)
Rec
(10)
Viva
(10)
Total
40
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Sign
CAD/CAM Laboratory Manual 2014
TOTAL
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0527 | Pa g e
CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
PART DRAWING OF SIMPLE COMPONENTS
AIM:
1. To draw the part modeling of the simple components as shown below by using Pro/E software
and obtain its respective views.
2. To find the mass properties of given drawings.
COMMANDS USED:
Extrude, Revolve, Line, Circle, Round, Chamfer etc,
PROCEDURE:
1. Study the given drawing completely.
2. Draw the cross section of front view.
3. Extrude the drawn section using extrude command for the given dimension.
4. Next select the appropriate plane and draw the other sections in similar way.
5. Also remove the materials where ever needed.
6. Using chamfer and round tools, make the sharp edges blunt.
7. Finally the part drawing is converted into the required drawing format.
RESULT:
Thus the part modeling of the simple components as shown below was drawn by using the Pro/E
software and mass properties were calculated.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0528 | P a g e
CAD/CAM Laboratory Manual 2014
1.
2.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 0529 | Pa g e
CAD/CAM Laboratory Manual 2014
3.
4.
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CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
FLANGE COUPLING
AIM:
1. To draw the detailed view of the flange coupling and assemble the parts by using the Pro/E
software and obtain its respective views.
2. To find the mass properties of the final assembly.
COMMANDS USED:
Sketch, Extrusion, Revolve, Pattern, Mate, Align, Helical Sweep, Round, Chamfer etc,.
PROCEDURE:
PART DRAWING:
FLANGE:
 Draw the sectional view of the flange in the sketcher mode.
 Draw the middle axis line for the purpose of using revolve command and make the flange.
 Make the keyway and holes by using extrude material (remove) command.
 Round the sharp edges of the flange by using round tool command.
SHAFT AND KEY:
 Use extrude command to make the shaft and the keyway.
 Use extrude command to make the key.
BOLT AND NUT:
 Use the extrude command to make the bolt head and shank of the bolt.
 Use the helical sweep command to make the thread in bolt shank.
 Use the extrude and helical sweep commands to make the nut with thread.
ASSEMBLY:
 Use the mate, align, insert and pattern commands to assemble the flange coupling.
DETAILED DRAWING:
 Use the drawing mode makes the respective views and bill of materials.
RESULT:
Thus the Detailed View of the Flange Coupling along withit’s respective views and mass
properties have been found.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05211 | Pa g e
CAD/CAM Laboratory Manual 2014
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05212 | P a g e
CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
SIMPLE ECCENTRIC
AIM:
To draw the detailed view of the Simple eccentric component and assemble the parts by using
the Pro/E software and obtain its respective views.
COMMANDS USED:
Sketch, Extrusion, Revolve, Mate, Align, Round, Chamfer etc,.
PROCEDURE:
PART DRAWING:
STRAP NO. 1:
 Use the extrude command and draw the strap No. 1.
STRAP NO. 2:
 Use the extrude command and draw the strap No. 1.
SHEAVE AND SHIM:
 Use the extrudecommand to make the sheave and shin parts.
BOLT AND NUT:
 Use the extrude command to make the bolt head and shank of the bolt.
 Use the helical sweep command to make the thread in bolt shank.
 Use the extrude and helical sweep commands to make the nut with thread.
ASSEMBLY:
 Use the mate, align, insert and pattern commands to assemble the Simple eccentric
component.
DETAILED DRAWING:
 Use the drawing mode to make the respective views and bill of materials.
RESULT:
Thus the Detailed View of the Simple eccentric componentand it’s respective views have been
drawn.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05213 | Pa g e
CAD/CAM Laboratory Manual 2014
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05214 | P a g e
CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
CONNECTING ROD
AIM:
To draw the detailed view of the Connecting Rodand assemble the parts by using the Pro/E
software and obtain its respective views.
COMMANDS USED:
Sketch, Extrusion, Revolve, Pattern, Mate, Align, Helical Sweep, Round, Chamfer etc,
PROCEDURE:
PART DRAWING:
CONNECTING ROD:
 Using Extrude command the Connecting rodis drawn.
BUSH, STUD, PIN:
 Using Extrude command,bush, stud and pin aredrawn.
BEARING BRASSES, DISTANCE PIECE, COVER, WASHER:
 Using Extrude command, the parts of the connecting rod are drawn.
NUT:
 Use Extrude and Helical sweep commands to make the nut with thread.
SPLIT PIN:
 Using Extrude command the split pin is drawn.
ASSEMBLY:
 Use the mate, align, insert and pattern commands to assemble the connecting rod.
DETAILED DRAWING:
 Use the drawing mode to make the respective views and bill of materials.
RESULT:
Thus the Detailed View of the Connecting rod and it’s respective views have been drawn.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05215 | Pa g e
CAD/CAM Laboratory Manual 2014
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05216 | P a g e
CAD/CAM Laboratory Manual 2014
EX.NO:
DATE:
STUFFING BOX
AIM:
To draw the detail view of the Stuffing Boxand assemble the parts by using the pro-e software
and obtain its respective views.
COMMANDS USED:
Sketch, Extrusion, Revolve, Pattern, Mate, Align, Helical Sweep, Round, Chamfer etc,
PROCEDURE:
PART DRAWING:
CYLINDER:
 Using Extrude, Cut and Round Commands the cylinder has been drawn.
NUT:
 Using Extrude, Cut and Round Commands the nut has been drawn.
GLAND BUSH:
 Using Extrude and Cut Commands the gland bush has been drawn.
PISTON ROD:
 Using Extrude and Cut Commands the piston rod has been drawn.
PACKING:
 Using Revolve command the packing has been drawn.
ASSEMBLY AND DETAILED DRAWING:
 Using the Assembly and Drawing mode to make the respective views and bill of materials.
RESULT:
Thus the Detail View of the Stuffing Boxand the it’s respective views has been drawn.
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05217 | Pa g e
CAD/CAM Laboratory Manual 2014
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05218 | P a g e
CAD/CAM Laboratory Manual 2014
Ex. No.:
Date :
Study of G codes and M codes for Part Programming
G Codes & M Codes for CNC Trainer Lathe (HMT CNC- T70)
G - Codes
G00
G01
G02
G03
G04
G25
G26
G33
G37
G38
G39
G65
G66
G67
G70
G71
G81
G84
G83
G90
G91
G92
G94
G95
RAPID TRAVERSE POSITIONING
LINEAR INTERPOLATION
CIRCULAR INTERPOLATION CLOCKWISE
CIRCULAR INTERPOLATION COUNTER CLOCKWISE
DWELL
PROGRAM TRANSFER FROM SYSTEM
PROGRAM TRANSFER TO SYSTEM
THREADING
SUBROUTINE CALL
SUBROUTINE START
SUBROUTINE END
CASSETTE LOAD
CASSETTE SAVE
CASSETTE SEARCH
INCH MODE
METRIC MODE
TURNING CYCLE
THREADING CYCLE
DRILLING WITH DWELL
ABSOLUTE PROGRAMMING
INCREMENTAL PROGRAMMING
PROGRAM PRESET
FEED PER MINUTE
FEED PER REVOLUTION
M - Codes
M00
M02
M30
PROGRAM STOP
PROGRAM END
PROGRAM END AND REWIND
G Codes & M Codes for CNC Trainer Machining Centre (HMT VMC 200 T)
G - Codes
G00
G01
G02
RAPID TRAVEERSE POSITIONING
LINEAR INTERPOLATION
CIRCULAR INTERPOLATION CLOCKWISE
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CAD/CAM Laboratory Manual 2014
G03
G04
G17
G18
G19
G25
G26
G37
G38
G39
G40
G41
G42
G65
G66
G67
G70
G71
G80
G82
G83
G84
G85
G86
G88
G89
G90
G91
G92
CIRCULAR INTERPOLATION COUNTER CLOCKWISE
DWELL
INTERPOLATION X-Y PLANE
INTERPOLATION X-Z PLANE
INTERPOLATION Y-Z PLANE
PROGRAM TRANSFER FROM SYSTEM
PROGRAM TRANSFER TO SYSTEM
SUBROUTINE CALL
SUBROUTINE START
SUBROUTINE END
CUTTER COMPONSATION CANCEL
CUTTER COMPONSATION LEFT
CUTTER COMPONSATION RIGHT
CASSETTE LOAD
CASSETTE SAVE
CASSETTE SEARCH
INCH MODE
METRIC MODE
CANNED CYCLE CANCEL
DRILLING CYCLE
DRILLING WITH DWELL CYCLE
PECK DRILL/WITHDRAWL CYCLE
BORING CYCLE
PCD DRILLING CYCLE
RECTANGULAR MILLING CYCLE
CIRCULAR MILLING CYCLE
ABSOLUTE PROGRAMMING
INCREMENTAL PROGRAMMING
PROGRAM PRE SET
M - Codes
M00
M02
M03
M04
M05
M06
M30
PROGRAM STOP
END OF PROGRAM
SPINDLE START CW
SPINDLE START CCW
SPINDLE STOP
TOOL CHANGE PROMPTING
END OF PROGRAM & REWIND
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CAD/CAM Laboratory Manual 2014
G Codes & M Codes for CNC Turning Centre (JOBBER XL)
G - Codes
G00:
G01:
G02:
G03:
G04:
G10:
G20:
G21:
G22:
G23:
G25:
G26:
G27:
G28:
G30:
G31:
G33:
G34:
G36:
G37:
G40:
G41:
G42:
G53:
G54:
G55:
G56:
G57:
G65:
G68:
G69:
G70:
G71:
G72:
G73:
G74:
G75:
G76:
G77:
G78:
G79:
POSITIONING
LINEAR INTERPOLATION
CIRCULAR INTERPOLATION CW
CIRCULAR INTERPOLATION CCW
DWELL
OFF SET VALUE SETTING (O)
INCH
METRIC
STORED STROKE CHECK ON (O)
STORED STROKE CHECK OFF (O)
SPINDLE SPEED DETECT OFF
SPINDLE SPEED DETECT ON
REF. POINT RETURN CHECK
REF. POINT RETURN
2ND (3,4) REF. POINT RETURN
SKIP CUTTING
THREAD CUTTING
VARIABLE LEAD THREAD CUTTING (O)
AUTO TOOL OFF SET X-AXIS (O)
AUTO TOOL OFF SET Z-AXIS (O)
TOOL NOSE RADIUS COMPENSATION
CANCEL
TOOL NOSE RADIUS COMPENSATION
LEFT (O)
TOOL NOSE RADIUS COMPENSATION
RIGHT (O)
SUPPRSSION OF ZERO OFFSET
SETTABLE ZERO OFFSET
SETTABLE ZERO OFFSET
SETTABLE ZERO OFFSET
SETTABLE ZERO OFFSET
MACRO CALL (O)
DOUBLE TURRETS MIRROR ON (O)
DOUBLE TURRETS MIRROR OFF
FINISHING CYCLE (O)
ROUGH CUTTING (TURNING) (O)
ROUGH CUTTING (FACING) (O)
ROUGH CUTTING (PROFILE) (O)
GROOVING (FACING) (O)
GROOVING TURNING (O)
THREAD CUTTING CYCLE (MULTI) (O)
TURNING CYCLE
THREAD CUTTING CYCLE
FACING CYCLE
G90:
G91:
G92:
G94:
G95:
G96:
G97:
ABSOLUTE
INCREMENTAL
COORDINATE SYSTEM SETTING OR
MAX. SPINDLE SPEED SETTING
PER MINUTE FEED
PER REVOLUTION FEED
CONSTANT SURFACE SPEED (O)
REVOLUTION PER MINUTE (RPM)
M - Codes
M00:
M01:
M02:
M03:
M04:
M05:
M07:
M09:
M10:
M11:
M16:
M18:
M19:
M20:
M30:
M32:
M33:
M35:
M46:
M47:
M50:
M51:
M78:
M79:
M82:
M83:
M84:
M85:
M98:
M99:
PROGRAM STOP
OPTIONAL STOP
PROGRAM END AND RESTART
SPINDLE ROTATION CW
SPINDLE ROTATION CCW
SPINDLE STOP
COOLANT ON
COOLANT OFF
CHUCK DECLAMP
CHUCK CLAMP
CHUCK 1D SELECTION
CHUCK 0D SELECTION
SPINDLE ORIENTATION
SPINDLE ORIENTATION CANCEL
END OF MAIN PROGRAM
TAILSTOCK QUIL FORWARD
TAILSTOCK QUIL RETRACT
PARTS CATCHE RETRACT
DOOR OPEN
DOOR CLOSE
SPINDLE LOCK
SPINDLE UNLOCK
STEADY REST OPEN
STEADY REST HOLD
TAIL STOCK BODY FWD/ UNCLAMP
TAILSTOCK BODY RET / CLAMP
TOUCH PROBE ARM FORWARD
TOUCH PROBE ARM RETRACT
SUB PROGRAM CALL
SUB PROGRAM END
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CAD/CAM Laboratory Manual 2014
G Codes and M Codes for Vertical Machining Centre (L Mill 55)
G - Codes
G00
Rapid positioning
G57
Work coordinate system 4 selection
G01
Linear interpolation
G58
Work coordinate system 5 selection
G02
Circular interpolation CW
G59
Work coordinate system 6 selection
G03
Circular interpolation CCW
G73
Peck drilling cycle
G04
Dwell
G74
Reverse tapping cycle
G09
Exact stop
G76
Fine boring cycle
G10
Data setting
G80
Canned cycle cancel
G20
Inch input
G81
Drilling cycle
G21
Metric input
G82
Counter boring cycle
G28
Zero return
G83
Peck drilling cycle
G30
Second Reference Point
G84
Tapping cycle
G40
Tool nose radius compensation cancel
G85
Boring cycle
G41
Tool nose radius compensation left
G86
Boring cycle
G42
Tool nose radius compensation right
G87
Back boring cycle
G43
Tool length offset
G88
Boring cycle
G52
Location coordinate system
G89
Boring cycle
G53
Machine coordinate system selection
G90
Absolute command
G54
Work coordinate system 1 selection
G91
Incremental command
G55
Work coordinate system 2 selection
G98
Initial point level return (canned cycle)
G56
Work coordinate system 3 selection
G99
Point R level return
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CAD/CAM Laboratory Manual 2014
M - Codes
M00
Temporary program stop
M30
Program end and rewind
M01
Optional stop
M50
Oil hole coolant on
M02
Program end
M60
Loading pallet B
M03
CW spindle rotation
M62
Loading pallet A
M04
CCW spindle rotation
M63
Unloading pallet A
M05
Spindle stop
M73
Y - Axis mirror image off
M06
Tool change
M74
Y - Axis mirror image on
M07
Secondary coolant ON
M75
X - Axis mirror image off
M08
Coolant pump ON
M76
X - Axis mirror image on
M10
4th axis clamp
M98
Sub-program call
M11
4th axis unclamp
M99
Sub-program end
M19
Spindle oriented stop
Department Of Mechanical Engineering,Kongu Engineering College,Perundurai, Erode - 638 05223 | Pa g e
CAD/CAM Laboratory Manual 2014
Ex. No.:
Date :
Programming and machining of given component using CNC Trainer Machining Centre
(HMT VMC 200T)
Aim:
To write a part program for the given component and draw the machining profile for the same
using HMT VMC 200T machining centre.
Tools Required:
1. Tools
2. Aluminium shaft
3. Vernier caliper
Procedure:
1. Write the part program for the given component using G codes and M codes.
2. Using the simulation software or by running the machine in test mode check the
program and if there is any error make the correction in the program.
3. Fix the work piece on the vice.
4. Move the tool to the start point of the work piece by manual mode.
5. Reset the Machine.
6. Change the machine from manual mode to single block mode or auto mode.
7. Execute the program to get the required shape of the work piece.
8. Remove the machined work piece from the vice.
Program:
%
N01
N02
N02
N03
N04
N05
N06
N07
N08
N09
N10
N11
N12
G90
G70
M03S200
G92 X0 Y0 Z0
G18
G01 Z500 F80
G17
G01 X2000 Y5000
G18
G01Z-500
G17
G01 Y2000
G18
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CAD/CAM Laboratory Manual 2014
N13
N14
N15
N16
N17
N18
N19
N20
N21
N22
N23
N24
N25
N26
N27
N28
N29
N30
N31
N32
N33
N34
N35
N36
N37
N38
N39
N40
N41
N42
N43
N44
N45
N46
N47
N48
N49
N50
N51
N52
N53
N54
N55
N56
N57
N58
G01 Z500
G17
G01 Y3500
G18
G01 Z-500
G17
G01 X5000 Y5000
G18
G01 Z500
G17
G01 X3000 Y4000
G18
G01 Z-500
G17
G01 X5000 Y2000
G18
G01 Z500
G17
G01 X9000 Y5000
G18
G01 Z-500
G17
G01 X6000 Y5000
G01 Y2000
G01 X9000
G18
G01 Z500
G17
G01 X6000 Y3500
G18
G01 Z-500
G17
G01 X8000
G18
G01 Z500
G17
G01 X12600 Y2500
G18
G01 Z-500
G17
G02 X12600 Y4500 I-1100 J1000
G18
G01 Z500
G17
G01 X0Y0
M30
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CAD/CAM Laboratory Manual 2014
Result:
The part program for the given part is written and the machining profile was generated for the
given part.
All Dimensions are in mm
Groove Depth 5 mm
Ex. No.:
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CAD/CAM Laboratory Manual 2014
Date
:
Programming and machining of given component using CNC Trainer Lathe
(HMT CNC T70)
Aim:
To write a part program for the given component and draw the machining profile for the same
using HMT CNC T70 Trainmaster Lathe.
Tools Required:
1. Tools
2. Aluminium shaft
3. Vernier caliper
Procedure
1. Write the part program for the given component using G codes and M codes.
2. Using the simulation software or by running the machine in test mode check the
program and if
there is any error make the correction in the program.
3. Fix the marking paper on the given table
4. Move the tool to the start point of the work piece by manual mode.
5. Reset the Machine.
6. Change the machine from manual mode to single block mode or auto mode.
7. Execute the program to get the required machining profile of the component required.
8. Remove the drawn sheet from the table.
Program
%
N01 G90 – Absolute programming
N02 G71 – Metric Mode
N03 G92 X0Z0 Program pre set
N04 G81 X-200 Z-6500 F200
(G81 – Turning cycle)
N05 G81 X-400 Z-5500
N06 G81 X-600 Z-4500
N07 G81 X-800 Z-3500
N08 G81 X-1000 Z-3400
N09 G81 X-1200 Z-3300
N10 G01 X-1500 Z0
N11 G01 X-1300 Z-200
N12 G01 X-1300 Z-3000
N13 G02 X-900 Z-3500 I500 K0
N14 G01 X-400 Z-5500
N15 G01 X-400 Z-6500
N16 G01 X0 Z-6500
N17 G01Z0
N18 M30
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CAD/CAM Laboratory Manual 2014
Result
The part program for the given model is written and the machining profile is drawn for the generated
program.
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CAD/CAM Laboratory Manual 2014
Profile Turning using CNC - T 70 lathe
Profile Turning 1
All Dimensions are in mm
Profile Turning 2
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CAD/CAM Laboratory Manual 2014
All Dimensions are in mm
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CAD/CAM Laboratory Manual 2014
Ex. No.:
Date :
Programming and machining of a component using CNC Turning Centre (Jobber XL)
Aim:
To write a part program for the given component and machine the same using JobberXL CNC
turning centre.
Tools Required:
1. Tool
2. Mild Steel shaft
3. Micro meter
4. Vernier
Procedure:
Write the part program for the given component using G codes and M codes.
Study the drawing carefully to plan for the machining operations.
Use the Man Machine Interface to programme the given geometry
Set the job and the offset for the given workpiece.
Use the processor for the operation sequence and set the parameters of the operation
Select all the operations for the Simulation purpose and execute the program and verify the
same in JobberXL CNC turning centre.
Execute the program and remove the work piece from the Clamp.
Program:
%
O0700
(FACING)
T0000
G21
T0810
G92S1250M04
G96S210
G00X55.0Z0M07
G01X-1.0F0.1
G00Z1.0
(OD TURNING)
G92S1250M04
G96S210
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CAD/CAM Laboratory Manual 2014
X51.0
G71U1.0R2.0
G71P1Q3U0.2W0.1F0.1
N1G00X21.0
G01Z0
G01X25.0Z-2.0
Z-30.0
G02X35.0Z-35.0R5.0
G01X43.0Z-55.0
Z-65.0
N3X51.0
G97M09
T0000
G28U0W0
(FINISHING)
T0611
G92S1200M04
G96S240
X55.0Z2.0M07
G70P1Q3F0.1
G97M09
T0000
G28U0W0M09
(THREADING)
T0212
G97S100M04
G00X25.0Z5.0M07
G76P035060Q200R100
G76X23.773Z-25.0P613Q400F1.0
S0T0000
G00X0Z0M09
M05
G28U0W0
M30
Result:
The part program for the given model is written and the given workpiece is machined as per the
given dimension.
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CAD/CAM Laboratory Manual 2014
All Dimensions are in mm
THREAD DATA CHART: Metric Thread -- Fine Pitch
Nominal
Size
ISO MF
25x1.0
Threa
d
Form
Type
M
Major
Diameter
mm
Pitch
mm
Root
Radius
mm
Pitch
Diameter
mm
Minor
Diameter
Female
Thd.
D1
Thread
Height
Male
Thd.
h3
Thread
Height
Female
Thd.
H1
Tap
Drill
Diameter
mm
d2=D2
Minor
Diameter
Male
Thd.
d3
d=D
p
r
25.00
1.00
0.144
24.350
23.773
23.917
0.613
0.541
24.00
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CAD/CAM Laboratory Manual 2014
For JobberXL CNC Turning Centre
CANNED CYCLE-G71-G76 (MULTIPLE REPETITIVE CYCLE) :
G71 STOCK REMOVAL IN TURING.
G71 U_R_;
G71 P_Q_U_W_F_;
G71 U∆d Re;
G71 pnsQnfU∆uW∆wFf;
∆d
= Depth of cut in radius
e
=
ns
=
figure.
nf
=
∆u
=
F
=
Tool escape / tool retraction distance
Sequence number of the first block of the program which specifies the finish
Sequence number of the last block of the program which specifies the finish figure.
Finish allowance on “x”axis / diameter
Feed.
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CAD/CAM Laboratory Manual 2014
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CAD/CAM Laboratory Manual 2014
Ex. No.:
Date :
Programming and machining of a component using CNC Turning Centre (Jobber XL)
(Drilling and Boring)
AIM:
To write a part program for the given component and machine the same using JobberXL CNC
turning centre.
TOOLS REQUIRED:
1. Tool
2. Mild Steel shaft
3. Micro meter
4. Vernier
PROCEDURE:
1. Write the part program for the given component using G codes and M codes.
2. Using the simulation software or by running the machine in test mode check the program
and if there is any error make the correction in the program.
3. Fix the work piece on the chuck.
4. Move the tool to the start point of the work piece by manual mode.
5. Reset the Machine.
6. Change the machine from manual mode to single block mode or auto mode.
7. Execute the program to get the required shape of the work piece.
8. Remove the machined work piece from the chuck.
PROGRAM:
O1505 (DRILLING & BORING)
T0000
N1 (FACING)
G21
T0820
G92S1250M04
G96S210
G00X55.0Z0M07
G95G01X-1.0F0.1
G00Z1.0
X45.0
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CAD/CAM Laboratory Manual 2014
G01X53.0Z-3.0
M05
G97M09
T0000
G28U0W0
N2 (CENTRE DRILLING)
T0121
M04S600G97
G00X0Z20.0
M07Z5.0
G01Z-10.0F0.1
M09G00Z10.0
M05
T0000
G28U0W0
N3 (DRILLING)
T0522 (DRILL BIT DIA 13)
M04S600G97
G00X0Z0
M07G95G98G83Z-63.0R-30.0Q4000F0.1
G80M05M09
T0000
G28U0W0
N4 (DRILLING)
T0323 (DRILL BIT DIA 15)
M04S600G97
M07G00X0Z0
G99G83Z-66.0R-30.0Q5000F0.1
M09G80M05
T0000
G28U0W0
N5 (BORING)
T0724 (BORING TOOL)
M04S600G97
G00X15.8Z20.0M07
M07Z5.0
G01Z-25.0F0.1
G00X15.0
Z1.0
X19.0
G01X16.0Z-0.5
Z-25.0
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CAD/CAM Laboratory Manual 2014
G00X15.0
M09Z5.0M09
M05
T0000
G28U0W0
M30
RESULT:
The part program for the given model is written and the given workpiece is machined as per the
given dimension.
All Dimensions are in mm
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CAD/CAM Laboratory Manual 2014
Ex. No.:
Date :
Programming and simulation of a component using MASTERCAM (Lathe)
Aim:
To draw the profile of the given part diagram, verify the simulation and generate the part
program using MASTERCAM software.
Tools Required:
1. MASTERCAM software
Procedure:
1. Open the MASTERCAM software and study the basic tools in the software
2. Study the given drawing carefully.
3. Select the lathe as a default machine and the start drawing the given part diagram.
4. After completing the part drawing, generate the stock and chuck for holding the workpiece.
5. Select the machining operation to be done for the part generated.
6. Select the tool and machining parameters.
7. Verify the generated operation and check whether there is any tool collision.
8. Generate NC code and then save the code in the desired location.
Result
Thus the part has been drawn and the NC code is generated for the given component.
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CAD/CAM Laboratory Manual 2014
All Dimensions are in mm
All Dimensions are in mm
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CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
NC CODE GENERATION USING MASTER CAM LATHE
AIM:
To generate the NC codes for given profile operation in master CAM lathe
COMMANDS USED:
Lines, Fillet, Tool Path , operation, job Setup.
PROCEDURE:
1. Using lines command draw the basic given profile in the editor by using Multi
points option.
2. Use fillet wherever needed.
3. Select Tool Path -> Rough -> Chain and select the lines at each extreme.
4. Then choose Tool path -> Job setup -> Boundary -> Parameters -> OD and Length.
5. Select Done.
CODE GENERATION:
1. Select Operation ->Regen Path -> Verify (iso) -> Post.
2. To get the code select Save.
RESULT:
Thus for given profile the NC code has been generated using master cam lathe.
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CAD/CAM Laboratory Manual 2014
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CAD/CAM Laboratory Manual 2014
EX.NO:
Date:
NC CODE GENERATION USING MASTER CAM MILL
AIM:
To generate the NC codes for given profile operation in master CAM Mill
COMMANDS USED:
Lines, Fillet, Tool Path , operation, job Setup.
PROCEDURE:
1.Select Create ->Rectangle ->I point ->Enter width and height in the dialog box which appears.
2. Select Main menu ->Tool Path ->Contour or Pocketing ->Chain ->Select the required items
and click on OK.
3. select Tool Path dialog box give the tool diameter and depth.
4. Select .fob Setup ->Enter x, y, z values and click on OK.
CODE GENERATION :
1. Select Operation ->Regen Path -> Verify (iso) -> Post.
2. To get the code select Save.
RESULT:
Thus for given profile the NC code has been generated using Master CAMMill.
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CAD/CAM Laboratory Manual 2014
5
30
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