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INTRODUCTION
CNC turning produces parts by "turning" rod material and feeding a cutting tool into the turning
material. In CNC turning the cutter can be fed into the rotating workpiece at a variety of angles
and many tool shapes can be used.
CNC turning provides an economical way to make parts that are commonly symmetrical about
an axis of revolution (e.g. a chess pawn). Shapes that can be made using CNC turning include a
variety of plain, taper, contour, fillet and radius profiles plus threaded surfaces. Although many
turned parts use a single axis of revolution, there can be multiple axis to allow more flexibility
(e.g. camshafts). CNC turning can be combined with CNC milling and other processes to make
more diverse shapes.
CNC turning can shape most rigid materials such as:
i. Aluminum
ii. Stainless Steel
iii. Copper
iv. Nylon
v. Steel
vi. Acetal
vii. Polycarbonate
viii. Acrylic
ix. Brass
x. Teflon
xi. Titanium
xii. ABS
http://www.emachineshop.com/machine-shop/Aluminum/page53.htmlhttp://www.emachineshop.com/machine-shop/Stainless-Steel/page54.htmlhttp://www.emachineshop.com/machine-shop/Copper/page55.htmlhttp://www.emachineshop.com/machine-shop/Nylon/page57.htmlhttp://www.emachineshop.com/machine-shop/Steel/page324.htmlhttp://www.emachineshop.com/machine-shop/Acetal/page58.htmlhttp://www.emachineshop.com/machine-shop/Polycarbonate/page59.htmlhttp://www.emachineshop.com/machine-shop/Acrylic/page61.htmlhttp://www.emachineshop.com/machine-shop/Brass/page322.htmlhttp://www.emachineshop.com/machine-shop/Teflon/page463.htmlhttp://www.emachineshop.com/machine-shop/Titanium/page465.htmlhttp://www.emachineshop.com/machine-shop/ABS/page472.htmlhttp://www.emachineshop.com/machine-shop/Stainless-Steel/page54.htmlhttp://www.emachineshop.com/machine-shop/Copper/page55.htmlhttp://www.emachineshop.com/machine-shop/Nylon/page57.htmlhttp://www.emachineshop.com/machine-shop/Steel/page324.htmlhttp://www.emachineshop.com/machine-shop/Acetal/page58.htmlhttp://www.emachineshop.com/machine-shop/Polycarbonate/page59.htmlhttp://www.emachineshop.com/machine-shop/Acrylic/page61.htmlhttp://www.emachineshop.com/machine-shop/Brass/page322.htmlhttp://www.emachineshop.com/machine-shop/Teflon/page463.htmlhttp://www.emachineshop.com/machine-shop/Titanium/page465.htmlhttp://www.emachineshop.com/machine-shop/ABS/page472.htmlhttp://www.emachineshop.com/machine-shop/Aluminum/page53.html7/30/2019 Report CNC Turning Lengkap
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xiii. PVC
xiv. Sterling Silver
xv. Bronze
Examples of parts made by CNC turning include:
i. Robot Parts
ii. Shift knobs
iii. Motorcycle Parts
iv. Auto Parts
v. Toy Parts
vi. Knobs
vii. Pulleys
viii. Shafts
ix. Hubs
x. Bushings
xi. Flywheels
APPARATUS
i. CNC Turning Machine PowerPath 15
ii. Aluminium rod 30mm in diameter
SAFETY PRECAUTION
i. Always keep safety in mind
http://www.emachineshop.com/machine-shop/PVC/page473.htmlhttp://www.emachineshop.com/machine-shop/Sterling-Silver/page475.htmlhttp://www.emachineshop.com/machine-shop/Bronze/page481.htmlhttp://www.emachineshop.com/machine-shop/Custom-Robot-Parts/page383.htmlhttp://www.emachineshop.com/machine-shop/Custom-shift-knobs/page422.htmlhttp://www.emachineshop.com/machine-shop/Custom-Motorcycle-Parts/page467.htmlhttp://www.emachineshop.com/machine-shop/Custom-Auto-Parts/page468.htmlhttp://www.emachineshop.com/machine-shop/Custom-Toy-Parts/page469.htmlhttp://www.emachineshop.com/machine-shop/Custom-Knobs/page470.htmlhttp://www.emachineshop.com/machine-shop/Custom-Pulleys/page471.htmlhttp://www.emachineshop.com/machine-shop/PVC/page473.htmlhttp://www.emachineshop.com/machine-shop/Sterling-Silver/page475.htmlhttp://www.emachineshop.com/machine-shop/Bronze/page481.htmlhttp://www.emachineshop.com/machine-shop/Custom-Robot-Parts/page383.htmlhttp://www.emachineshop.com/machine-shop/Custom-shift-knobs/page422.htmlhttp://www.emachineshop.com/machine-shop/Custom-Motorcycle-Parts/page467.htmlhttp://www.emachineshop.com/machine-shop/Custom-Auto-Parts/page468.htmlhttp://www.emachineshop.com/machine-shop/Custom-Toy-Parts/page469.htmlhttp://www.emachineshop.com/machine-shop/Custom-Knobs/page470.htmlhttp://www.emachineshop.com/machine-shop/Custom-Pulleys/page471.html7/30/2019 Report CNC Turning Lengkap
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ii. Let the machine and the spindle come to a complete stop before touching parts, tools or
spindle.
iii. Be certain that the workpiece and tools are secured.
iv. Do not operate machine before making sure that all machine guards, interlocks, and other
safety devices are installed and under operation.
v. Do not wear neckties, wristwatches, rings, jewelery, etc., when operating the machine.
OBJECTIVES
i. Develop CNC Mill and Lathe G&M code programs.
ii. Debug and edit G&M code programs on the shop floor.
iii. Setup machines for small production runs.
iv. Setup and define work offsets and tool length offsets.
v. Perform basic machine tool operations, including power up, load and edit G&M code
programs, load tools, simulate programs, first piece run and inspection
vi. Perform routine maintenance, such as topping of coolant and checking concentricity
using a refractometer.
vii. Inspect basic components using micrometers, dial and verniew calipers, and a portable
CMM.
viii. Solve basic technical math problems common in the shop.
ix. Read and interpret blueprints using 3rd and 1st angle projection.
x. Read and interpret basic GD&T (Geometric Dimension and Tolerance).
xi. Identify CNC Mill and Lathe Tooling used for high speed machining and hard milling.
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SPECIFICATION OF CNC TURNING BRIDGEPORT POWERPATH 15
Machine type : horizontal
Number of axes : 2
Cutting diameter : 280mm
Cutting length : 540mm
Bar/bore : 51mm
Tool station : 0
Spindle : 1
Motor power :11 Kw
Spindle speed : 5000rpm
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BRIDGEPORT/ POWERPATH 15
FANUC CONTROL
G-CODES M-CODES
G0 Positioning (Rapid Traverse)
G01 Linear Interpolation
G02 Circular Interpolation CW
G03 Circular Interpolation CCW
G04 Dwell
G28 Return To Reference Point
G30 Floating Reference Point
G40 Tool Nose Radius Compensation CANCEL
G41 Tool Nose Radius Compensation LEFT
G42 Tool Nose Radius Compensation RIGHT
M00 Program Stop
M01 Optional Stop
M03 Spindle Rotation CW
M04 Spindle Rotation CCW
M05 Spindle Stop
M08 Coolant ON
M09 Coolant OFF
M10 Chuck Close
M11 Chuck Open
M30 End Of Program
M82 Tail Stock Quill Advance
M83 Tail Stock Quill Retract
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G50 Maximum Spindle Speed
G70 Finishing Cycle
G71 Stock Removal Turning
G72 Stock Removal Facing
G73 Copy Turning
G76 Thread Cutting Cycle
G80 Canned Cycle CANCEL
G81 Drill Canned Cycle
G82 Spot Drill Canned Cycle
G83 Peck Drill Canned Cycle
G84 Tapping Canned Cycle
G96 Constant Speed Control ON
G97 Constant Speed Control CANCEL
OSP CONTROL
G-CODES M-CODES
G0 Positioning (Rapid Traverse)
G01 Linear Interpolation
G02 Circular Interpolation CW
G03 Circular Interpolation CCW
G04 Dwell
G28 Return To Reference Point
G30 Floating Reference Point
G40 Tool Nose Radius Compensation CANCEL
G41 Tool Nose Radius Compensation LEFT
M00 Program Stop
M01 Optional Stop
M03 Spindle Rotation CW
M04 Spindle Rotation CCW
M05 Spindle Stop
M08 Coolant ON
M09 Coolant OFF
M02 End Of Program
M55 Tail Stock Quill Retract
M56 Tail Stock Quill Advance
M63 Ignore Spindle Rotation And M
Code Answer
M83 Chuck Clamp
M84 Chuck Open
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G42 Tool Nose Radius Compensation RIGHT
G50 Maximum Spindle Speed
G70 Finishing Cycle
G80 End Of Lap Cycle
G81 Start Of Lap Turning Cycle
G82 Start Of Lap Facing Cycle
G85 Stock Removal Turning
G86 Copy Turning
G96 Constant Speed Control ON
G97 Constant Speed Control CANC
COMMONLY USED G-CODES IN CNC LATHE
G00 - Rapid positioning G57 workpiece coordinate setting #4
G01 - feedrate positioning G58 workpiece coordinate setting #5
G02 arc clockwise G59 workpiece coordinate setting #6G03 counter clockwise G61 exact stop check mode
G04 - dwell G62 automatic corner override
G07 federate sine curve control G63 tapping mode
G10 data setting G64 cutting mode
G11 data setting cancel G65 user macro call
G17 x-y plane G66 user macro call (modal)
G18 x-z plane G67 user macro call cancel (modal)
G19 y-z plane G70 finishing cycle
G20 inch unit G71 turning cycle
G21 metric units G72 facing cycle
G22 stored stroke check ON G73 pattern repeat
G23 stored stroke check OFF G74 drilling cycle
G27 reference point return check G75 grooving cycle
G28 automatic zero return G76 threading cycle
G29 return from zero position G80 canned cycle cancel
G30 2nd reference point return G83 face drilling cycle
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G31 skip function G84 face tapping cycle
G32 thread cutting G86 face boring cycle
G36 automatic tool compensation G90 absolute positioning
G40 tool compensation cancel G91 incremental positioning
G41 tool compensation left G92 OD thread cutting cycle
G42 tool compensation right G94 face turning cycleG46 automatic tool compensation G96 constant speed control
G50 coordinate system setting G97 constant speed control cancel
G52 local coordinate system setting G98 federate per time
G53 machine coordinate system setting G99 federate per revolution
G54 workpiece coordinate setting #1 G107 cylindrical interpolation
G55 workpiece coordinate setting #2 G112 polar coordinate interpolation
G56 workpiece coordinate setting #3 G113 polar coordinate interpolation cancel
PROCEDURE OF CUTTING PROCESS OF WORKPIECE BY USING CNC TURNING
MACHINE
Procedure To Start The CNC Turning Machine Figure
1. On main switch power.
2. On main switch at the CNC machine.
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3. Release emergency stop button by rotating it .
4. On display monitor (green button) and then wait until
in ready. If not, when we convert the program, the
program will lost.
5. Press POS button (position).
6. Press PROG button (program)
7. Press EDIT MODE ,then press DIR button
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(directory)
8. Insert number and then press the arrow to look up
for program. Then, press PAGE button and all the
program will display at the monitor.
9. Insert the alphanumeric data, then press EOB( end
of block) and then press the INSERT button. Repeat
this step until all data has been inserted.
10. Simulate the project base on inserted data by using the
folloing step:- Press RESET button
- Press AUTOMODE button
- Press GRAPH button outsie the monitor
- Press GRAPH button at the monitor
- Press OPRT(operation) button at the monitor
- Press EXEC(exercise) button at the monitor
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Procedure To Clamp The Workpiece Figure
1. Press CLAMP button and make sure that the workpiece
is hold properly. Close the machines door
2. Press the MANUAL MODE to set the tool. Then press
the MDI MODE. Insert the alphanumeric data from the
start program until N40.
CLAMP
BUTTON
MDI
MODE MANUAL
MODE
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3. On the monitor and then on the power. Make sure that
the tool touch workpiece and then press the MANUAL
MODE.
4. Press HANDLE Z button, then HANDLE x100
button then HANDLE X button until the tool touch Z
axis.
5. When the tool has touch Z axis, press OFFSET
SETTING button. After press OFFSET SETTING
button, press SETTING button follow by OFFSET
and GEOMETRY button.
Move the cursor to number 5 then insert the value of Z as
Z0.0. Then press the measure button at the monitor.
HANDLE
X
HANDLE
Z
HANDLE
X100
OFFSET SETTING
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6. Press HANDLE Z follows by HANDLE X until the
tool touch the workpiece.
7. Press RESET button and then open the machines door.
Measure the diameter of the workpiece using vernier
caliper and then insert the value x using the reading
value.
-VERNIER CALIPER-
HANDLE
X
HANDLE
Z
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Procedure To Cut The Workpiece Figure
1. Press RESET button follow by SINGLE BLOCK
button. Then press the green button and off the
SINGLE BLOCKbutton.
2. Press green button again and on the power, then cutting
process start automatically. Get ready to press the
EMERGENCY BUTTON if any accident or problem
occurs. Wait until the cutting process at finishing step.
SINGLE
BLOCK
GREEN
BUTTON
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3. Off the power and press MANUAL MODE. Then
open the machines door.
Hold the workpiece and then press the CLAMP button
again to open the clamp.
CLAMP
GREEN
BUTTON
(POWER)
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Procedure To Off The Machine Figure
1. Press EDIT MODE then press the red button. Push the
EMERGENCY STOP button
2. Off the main switch at the machine followed by main
power.
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FINAL PRODUCT
Drawing in Inventor Software
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3D Model
CONCLUSION
As a conclusion, I have learned a lot of things about this CNC turning machine. I knew how to
handle this machine and its safety precautions. This machine is quite easy to handle and I very
excited when handle it. This knowledge is very useful to me and I hope that I can apply it when I
work one day.
REFERENCES
1. Bawa. (2004). Manufacturing Process 1. McGraw-Hill
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2. Bawa. (2004). Manufacturing Process 2. McGraw-Hill
3. Che Abas Che Ismail (2000). Rekabentuk Pembuatan Terbantu Komputer, UTM
4. S. K. Krar, J.W.Oswald. (1976). Technology of Machine Tools, McGraw-Hill