cnc turning (bridgeport)
DESCRIPTION
For Polytechnic StudentsTRANSCRIPT
![Page 1: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/1.jpg)
CNC LATHE MACHINE
MECHANICAL ENGINEERING DEPARTMENT
JHBO
![Page 2: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/2.jpg)
PENGENALAN
CNC turning adalah bermula dengan penghasilan mesin
larik.
Menggunakan mesin larik untuk kerja-kerja melarik,menggerek, mengerudi, membuat
benang skru dan sebagainya.
![Page 3: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/3.jpg)
• Numerical Control• 1950 - 1975NC• Computer Numerical Control with integrated computer
• 1970CNC• FLEXIBLE MANUFACTURING SYSTEM• 1990FFS• Computer Aided Design / Drawing• 1958CAD• Computer Aided Design and Computer Aided Manufacturing
• 1975CAD / CAM
• Computer integrated manufacturing with planning, design and manufacturing
• 1989CIM
![Page 4: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/4.jpg)
SEJARAH CNC LATHE / TURNING
Program ini mula dibangunkan pada awal tahun 1970 selepas program DNC yang sangat popular sebelum program ini.Keperluan system kawalan ini ialah memudahkan penyuntingan aturcara,menyediakan analisis diogrisis,mengawal pembuatan,menambah kawalan sesuatu perkakas secara ekonomi,dan kos bagi program ini adalah murah.
![Page 5: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/5.jpg)
MESIN LARIK
![Page 6: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/6.jpg)
MESIN LARIK KONVENSIONAL
![Page 7: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/7.jpg)
PLPG – JPTK – FKIP – UNS
Mesin CNC vs Konvensional
![Page 8: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/8.jpg)
PLPG – JPTK – FKIP – UNS
Bahagian-bahagian Mesin CNC Lathe
Chuck/Cekam
Controller
Rumah Alat/Tool turret
Motor Utama
Eretan memanjang
Paksi- Z
Lampu
Eretan melintang/paksi- X
![Page 9: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/9.jpg)
JENIS-JENIS MESIN
MAKINO (JAPAN)NAKAMURA TOME SC-150M (JAPAN)
![Page 10: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/10.jpg)
HAAS HSI-RP: 2 Pallet Horizontal Machining Center
![Page 11: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/11.jpg)
CNC MAZAK (JAPAN)
![Page 12: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/12.jpg)
![Page 13: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/13.jpg)
PEMBUANGAN TATAL @ PENYEJUK
![Page 14: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/14.jpg)
CONTOL PANEL (PAPAN KAWALAN)
![Page 15: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/15.jpg)
BAHAGIAN CONTROL PANEL
A) POWER OFF
B) POWER ON
C) CYCLE START
D) FEED HOLD
E) FEED RATE CONTROL
F) PANEL HAND WHEEL
G) EMERGENCY STOP
![Page 16: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/16.jpg)
![Page 17: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/17.jpg)
JENIS - JENIS MATA ALAT
CENTER DRILLENDMILL KARBIDA
![Page 18: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/18.jpg)
![Page 19: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/19.jpg)
![Page 20: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/20.jpg)
GAMBARAJAH MATA ALAT JENIS ‘CARBIDA’
![Page 21: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/21.jpg)
CNC PROGRAMMING
![Page 22: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/22.jpg)
Defination
Part program is a set of instructions which instructs the machine tool about the processing steps to be performed for the manufacture of a component.
Part programming is the procedure by which the sequence of processing steps and other related data, to be performed on the CNC machine is planned and documented.
![Page 23: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/23.jpg)
Some typical NC Words : N-Word (Sequence Number) :The first word in every block is the
sequence number.The sequence number is used to
identify the block. The sequence number is preceded
by word N and is written as N001, N005, etc.
![Page 24: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/24.jpg)
Contoh G code
G00 rapid motionG01 line interpolation motionG02 CW interpolation motionG03 CCW interpolation motionG04 DwellG09 exact stopG10 set offsetG17 XY planeG18 ZX planeG19 YZ planeG20 select inchesG21 select metricG28 return to reference pointG29 return from reference pointG81 drill cycleG82 counter bore cycleG83 deep hole drilling cycleG90 absolute positionG91 INCREAMENTAL positionG99 rapid to retract plane
![Page 25: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/25.jpg)
CONTOH PROJEK (SIMULASI)
MENGGUNAKAN PERKAKASAN EXSL - WIN
![Page 26: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/26.jpg)
![Page 27: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/27.jpg)
![Page 28: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/28.jpg)
Contoh Arahan Kod :0300; N10 G97 G96 S2000 T0101 M3; N20 G00 X52 Z2; N30 G71 U0.3 R2; N40 G71 P50 Q110 U0.1 W0.1 F0.1; N50 G01 X20; N55 G01 Z0; N60 G01 X20 Z-15; N70 G02 X30 Z-20 R5; N80 G01 X40 Z-30; N90 G01 X40 Z-40; N100 G03 X50 Z-45 R5; N110 G01 X50 Z-70; N120 G70 P50 Q110 T0202 F0.1; N130 G28 U0 W0; M05; M30;
![Page 29: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/29.jpg)
Turning Center Coordinate System
Z is the length of the part.
X is the diameter of the part.
The partially shaded circlerepresents the origin.
The programmer chooses thelocation of the origin on the part,usually the back, center or front,center.
We will always use the back,center since it simplifies machineset-up.
Program to move the tool, notthe work.
![Page 30: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/30.jpg)
Incremental vs.Absolute Programming
Suppose we want to move from the origin
through points A, B, C, D, and E. We can move:
incrementally – distance from previous point,
or absolutely – new distance from the
origin
![Page 31: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/31.jpg)
E
B
A
Point
Incremental Absolute
Z X Z X
Origin 0 0 0 0
A 1 1 1 1
B 2 0 3 1
C 0 1 3 2
D 2 0 5 2
E 1 4 6 6
Incremental vs.Absolute Programming
CD
![Page 32: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/32.jpg)
M-CODESistem kod M mengawal keseluruhan mesin, menyebabkan ia berhenti,bermula, memasang pendingin (coolant), dan sebagainya.
Alatan mesin yang berbeza boleh menggunakan kod yang sama untuk melaksanakan fungsi yang berbeza, walaupun mesin yang mengunakan pengawal CNC yang sama.
Contoh arahan menggunakan kod M: Arahan membuka pelincir Arahan pergerakan pusingan ikut jam atau lawan
jam bagi alat pemotong
![Page 33: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/33.jpg)
Contoh M Code
M00 program stopM01 optional program stopM02 program endM03 spindle on clockwiseM04 spindle on counter clockwiseM05 spindle stopM06 tool changeM08 coolant onM09 coolant off M10 clamps onM11 clamps offM30 end of program, reset to start
![Page 34: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/34.jpg)
G-CODE
G-code adalah nama yang digunakan bagi bahasa pengaturcaraan yang mengawal mesin dan memberitahu peralatan mesin jenis kerja yang perlu dilakukan, contohnya :
Pergerakan yang cepat Satu siri pergerakan suapan Mengawal pergerakan suapan dalam
garis lurus atau lengkungan
![Page 35: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/35.jpg)
Common Fanuc G Codes
Code Description
G00 Rentasan deras (titik ke titik)
G01 Suapan dalam gerakan lelurus
G02 Penentu dalaman membulat bagi lengkok ikut jam
G03 Penentu dalaman membulat bagi lengkok lawan jam
G20 Pemprograman dalam inci
G21 Pemprograman dalam inci
G28 Kembali kepada kedudukan asal
![Page 36: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/36.jpg)
G 00 – LINEAR INTERPOLATION IN RAPID TRAVERSE
![Page 37: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/37.jpg)
G 01 – LINEAR INTERPOLATION IN SLOW MOTION
![Page 38: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/38.jpg)
G 02 – CIRCULAR INTERPOLATION (CW)
![Page 39: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/39.jpg)
G 03 – CIRCULAR INTERPOLATION (CCW)
![Page 40: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/40.jpg)
G 33 -THREAD CUTTING / TAPER THREAD CUTTING
![Page 41: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/41.jpg)
G 71 - LONGITUDINAL STRAIGHT ROUGHING CYCLE
![Page 42: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/42.jpg)
G 72 - CROSS ROUGHING CYCLE
![Page 43: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/43.jpg)
G 74 - PECK DRILLING CYCLE
![Page 44: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/44.jpg)
G 75 – GROOVING CYCLE
![Page 45: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/45.jpg)
M00 programmed stop M01 optional stop M02 program end M30 program end with resetting
M03 activate spindle in clockwise rotation M04 activate spindel in counter - clockwise rotation M05 deactivate spindle
M08 activate coolant M09 deactivate coolant
M48 activate feedrate override dial M49 cancel feedrate override dial
M41 select lower spindle speed range M42 select higher spindle speed range
“M” CODE
![Page 46: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/46.jpg)
PART PROGRAMMING
![Page 47: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/47.jpg)
G01 – LINEAR INTERPOLATION
X Z
a 0 0
b 40 0
c 40 -40
d 80 -40
e 80 -90
f 110 -90
g 110 -140
![Page 48: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/48.jpg)
G01 – LINEAR INTERPOLATION
N G X Z
N10 G00 50 1
N20 G01 50 -25
N30 G01 75 -25
N40 G01 100 -75
N50 G01 100 -100
N60 G01 101 -100
![Page 49: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/49.jpg)
EXCERCISE 1
N G X Z
![Page 50: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/50.jpg)
EXCERCISE 1- RESULT
N G X ZN10 G00 25 1
N20 G01 25 -12.5
N30 G01 37.5
-25
N40 G01 50 -25
N50 G01 50 -50
N60 G01 75 -62.5
N70 G01 75 -75
N80 G01 100 -87.5
N90 G01 100 -100
N100
G01 101 -100
![Page 51: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/51.jpg)
EXCERCISE 2
N G X Z I K R
N10
N20
N30
N40
N50
N60
N70
N80
N90
![Page 52: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/52.jpg)
EXCERCISE 2 - RESULT
N G X Z I K R
N10
G00
25 1
N20
G01
25 -25
N30
G02
50 -37.5
25 0
N40
G01
50 -50
N50
G02
75 -62.5
25 0
N60
G01
75 -75
N70
G03
100
-87.5
0 -12.5
N80
G01
100
-100
N90
G01
101
-100
![Page 53: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/53.jpg)
CNC Turning Operation Procedure
Planning and ProgrammingTo program a CNC machine tool to create a part, you must follow a series of steps to be successful:
![Page 54: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/54.jpg)
CNC Turning Operation Procedure
1. Examine the part drawing thoroughly and get a rough idea of how you want to proceed.
![Page 55: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/55.jpg)
CNC Turning Operation Procedure
2. Figure out how to hold the raw material so you can perform as much machining as possible in one setup.
![Page 56: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/56.jpg)
CNC Turning Operation Procedure
3.Decide what cutters are necessary to perform thevarious operations.
![Page 57: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/57.jpg)
CNC Turning Operation Procedure
4.Write down the exact sequence of operationsnecessary to machine the part, one cutter at a time.
![Page 58: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/58.jpg)
CNC Turning Operation Procedure
5. Convert your sequence of operations into a program and simulate the program if possible
![Page 59: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/59.jpg)
Notes on Turning Center G & M Codes
• Most machines only allow one M code per block.
• The tool code (T) is four digits – the first two for the tool number, the second two for the offset number. They are usually the same.
(ex: T0101 / T0202)• All alpha characters must be in
uppercase
![Page 60: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/60.jpg)
Running a Program for the First Time
1. Install all cutters in the proper holders.2. Install the fixture or chuck on the machine and establish the WCS (Work Coordinate System)3. Set the cutter offsets.4. Simulate the program on the machine.5. Slow rapid traverse down as low as possible.6. Initiate the single step cycle with your hand on the E-stop button at all times.7. Carefully watch the operations, press the feed hold button to take notes for any corrections.8. Install a part and go to step 5.
![Page 61: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/61.jpg)
PROJEK CNC TURNING
Lakarkan gambarajah projek anda menggunakan software CAD atau secara insani.
Ukuran maksima untuk projek Panjang tidak lebih 100 mm Diameter tidak lebih 30mm
Buat program secara insani menggunakan G code dan M code berdasarkan rekabentuk yang dilakarkan.
![Page 62: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/62.jpg)
CONTOH REKABENTUK PROJEK
![Page 63: Cnc Turning (Bridgeport)](https://reader035.vdokumen.net/reader035/viewer/2022081716/5529836d4a795968158b4777/html5/thumbnails/63.jpg)
CONTOH PROGRAM
:0029;(BISHOP)N10 G97 S2000 M03 T0101;N20 G00 X40 Z1;N30 G71 U1 R2;N40 G71 P50 Q180 U0.5 W0.5 F1;N50 G01 X0 Z0;N60 G03 X2 Z-1 R2;N150 G03 X10 Z-7.5 R8.5;N160 G01 X9 Z-9;N170 G03 X10 Z-11 R2;N180 G01 X9 Z-15;N190 G01 X9 Z-18N200 G01 X13 Z-36N201 G01 X15 Z-36.5;N202 G01 X15 Z-37;N203 G02 X17 Z-38 R1;N204 G03 X21 Z-40 R2;N205 G01 X21 Z-43;
N206 G03 X23 Z-45 R2;N207 G02 X25 Z-47 R2;N208 G01 X25 Z-50;N209 G01 X25 Z-55;N210 G70 P50 Q 209 T0101 F0.5;N211 G28 U0 W0;N212 M05;N213 M30;
Length : 100mmDiameter: 25mm