REPORT CNC TURNING

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: • • • • • • • • • • • • • • •

Aluminum Stainless Steel Copper Nylon Steel Acetal Polycarbonate Acrylic Brass Teflon Titanium ABS PVC Sterling Silver Bronze

Examples of parts made by CNC turning include: • • • • • • • • • • •

Robot Parts Shift knobs Motorcycle Parts Auto Parts Toy Parts Knobs Pulleys Shafts Hubs Bushings Flywheels

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

BRIDGEPORT/ POWERPATH 15

FANUC CONTROL G-CODES

M-CODES

G0

Positioning (Rapid Traverse)

M00

Program Stop

G01

Linear Interpolation

M01

Optional Stop

G02

Circular Interpolation CW

M03

Spindle Rotation CW

G03

Circular Interpolation CCW

M04

Spindle Rotation CCW

G04

Dwell

M05

Spindle Stop

G28

Return To Reference Point

M08

Coolant ON

G30

Floating Reference Point

M09

Coolant OFF

G40

Tool Nose Radius Compensation CANCEL

M10

Chuck Close

G41

Tool Nose Radius Compensation LEFT

M11

Chuck Open

G42

Tool Nose Radius Compensation RIGHT

M30

End Of Program

G50

Maximum Spindle Speed

M82

Tail Stock Quill Advance

G70

Finishing Cycle

M83

Tail Stock Quill Retract

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)

M00

Program Stop

G01

Linear Interpolation

M01

Optional Stop

G02

Circular Interpolation CW

M03

Spindle Rotation CW

G03

Circular Interpolation CCW

M04

Spindle Rotation CCW

G04

Dwell

M05

Spindle Stop

G28

Return To Reference Point

M08

Coolant ON

G30

Floating Reference Point

M09

Coolant OFF

G40

Tool Nose Radius Compensation CANCEL

M02

End Of Program

G41

Tool Nose Radius Compensation LEFT

M55

Tail Stock Quill Retract

G42

Tool Nose Radius Compensation RIGHT

M56

Tail Stock Quill Advance

G50

Maximum Spindle Speed

M63

G70

Finishing Cycle

Ignore Spindle Rotation And M Code Answer

G80

End Of Lap Cycle

M83

Chuck Clamp

G81

Start Of Lap Turning Cycle

M84

Chuck Open

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 G01 - feedrate positioning G02 – arc clockwise G03 – counter clockwise G04 - dwell G07 – federate sine curve control G10 – data setting G11 – data setting cancel G17 – x-y plane G18 – x-z plane G19 – y-z plane G20 – inch unit G21 – metric units G22 – stored stroke check ON G23 – stored stroke check OFF G27 – reference point return check G28 – automatic zero return G29 – return from zero position G30 – 2nd reference point return G31 – skip function G32 – thread cutting G36 – automatic tool compensation G40 – tool compensation cancel G41 – tool compensation left G42 – tool compensation right G46 – automatic tool compensation G50 – coordinate system setting G52 – local coordinate system setting G53 – machine coordinate system setting G54 – workpiece coordinate setting #1 G55 – workpiece coordinate setting #2 G56 – workpiece coordinate setting #3

G57 – workpiece coordinate setting #4 G58 – workpiece coordinate setting #5 G59 – workpiece coordinate setting #6 G61 – exact stop check mode G62 – automatic corner override G63 – tapping mode G64 – cutting mode G65 – user macro call G66 – user macro call (modal) G67 – user macro call cancel (modal) G70 – finishing cycle G71 – turning cycle G72 – facing cycle G73 – pattern repeat G74 – drilling cycle G75 – grooving cycle G76 – threading cycle G80 – canned cycle cancel G83 – face drilling cycle G84 – face tapping cycle G86 – face boring cycle G90 – absolute positioning G91 – incremental positioning G92 – OD thread cutting cycle G94 – face turning cycle G96 – constant speed control G97 – constant speed control cancel G98 – federate per time G99 – federate per revolution G107 – cylindrical interpolation G112 – polar coordinate interpolation G113 – polar coordinate interpolation cancel

PROJECT 1

O0011;

N160 G01 X50.0 Z-60.0;

N10 G28 U0.0 W0.0;

N170 G70 P80 Q160;

N20 G92 S1500;

N180 G28 U0.0 W0.0;

N30 T0505;

N190 M09;

N40 G96 S1000 F0.3 M03 M08;

N200 M05;

N50 G90 G00 X52.0 Z3.0;

N210 M30;

N60 G71 U0.2 R0.2; N70 G71 P80 Q160 U0.1 W0.1; N80 G01 X0.0 Z0.0; N90 G01 X38.0 Z0.0; N100 G01 X38.0 Z-15.0; N110 G01 X42.0 Z-15.0; N120 G01 X42.0 Z-30.0; N130 G01 X46.0 Z-30.0; N140 G01 X46.0 Z-45.0; N150 G01 X50.0 Z-45.0;

PROJECT 2

O0021;

N140 G01 X58.0 Z-70.0;

N10 G28 U0.0 W0.0;

N150 G70 P80 Q140;

N20 G92 S1500;

N160 G28 U0.0 W0.0;

N30 T0505;

N170 M09;

N40 G96 S1000 F0.3 M03 M08;

N180M05;

N50 G90 G00 X60.0 Z3.0;

N190 M30;

N60 G71 U0.2 R0.2; N70 G71 P80 Q140 U0.1 W0.1; N80 G01 X0.0 Z0.0; N90 G01 X32.0 Z0.0; N100 G01 X32.0 Z-15.0; N110 G01 X42.0 Z-20.0; N120 G01 Z42.0 Z-45.0; N130 G01 X58.0 Z-55.0;

PROJECT 3

O0033;

N140 G01 X120.0 Z-100.0;

N10 G28 U0.0 W0.0;

N150 G01 X120.0 Z-150.0;

N20 G92 S1500;

N160 G02 X140.0 Z-160.0 R10.0;

N30 T0505;

N170 G01 X160.0 Z-160.0;

N40 G96 S1000 F0.3 M03 M08;

N180 G01 X180.0 Z-175.0;

N50 G90 G00 X182.0 Z3.0;

N190 G01 X180.0 Z-231.0;

N60 G71 U0.2 R0.2;

N200 G70 P80 Q190.0;

N70 G71 P80 Q190 U0.1 W0.1;

N210 G28 U0.0 W0.0;

N80 G01 X0.0 Z0.0;

N220 M09;

N90 G01 X40.0 Z0.0;

N230 M05;

N100 G03 X60.0 Z-10.0 R10.0;

N240 M30;

N110 G01 X60.0 Z-25.0; N120 G01 X80.0 Z-40.0; N130 G01 X80.0 Z-80.0;

PROJECT 4

O0034;

N140 G01 X120.0 Z-100.0;

N10 G28 U0.0 W0.0;

N150 G01 X120.0 Z-150.0;

N20 G92 S1500;

N160 G02 X140.0 Z-160.0 R10.0;

N30 T0505;

N170 G01 X160.0 Z-160.0;

N40 G96 S1000 F0.3 M03 M08;

N180 G01 X180.0 Z-175.0;

N50 G90 G00 X182.0 Z3.0;

N190 G01 X180.0 Z-231.0;

N60 G71 U0.2 R0.2;

N200 G70 P80 Q190.0;

N70 G71 P80 Q190 U0.1 W0.1;

N210 G28 U0.0 W0.0;

N80 G01 X0.0 Z0.0;

N220 M09;

N90 G01 X40.0 Z0.0;

N230 M05;

N100 G03 X60.0 Z-10.0 R10.0;

N240 M30;

N110 G01 X60.0 Z-25.0; N120 G01 X80.0 Z-40.0; N130 G01 X80.0 Z-80.0;

PROJECT 5

O0035;

N160 G01 X120.0 Z-80.0;

N10 G28 U0.0 W0.0;

N170 G70 P80 Q160.0;

N20 G92 S1500;

N180 G28 U0.0 W0.0;

N30 T0505;

N190 M09;

N40 G96 S1000 F0.3 M03 M08;

N200 M05;

N50 G90 G00 X122.0 Z3.0;

N210 M30;

N60 G71 U0.2 R0.2; N70 G71 P80 Q160 U0.1 W0.1; N80 G01 X0.0 Z0.0; N90 G01 X20.0 Z0.0; N100 G01 X40.0 Z-20.0; N110 G01 X40.0 Z-40.0; N120 G02 X60.0 Z-50.0 R10.0; N130 G01 X100.0 Z-65.0; N140 G01 X100.0 Z-70.0;

N150 G01 X120.0 Z-70.0; TOP’S PROGRAMME (PROGRAM GASING)

PROGRAMME 1

O0027; N10 G28 U0.0 W0.0; N20 G92 S1500; N30 T0505; N40 G96 S1000 F0.3 M03; N50 G90 G00 X26.5 Z3.0; N60 G71 U0.2.R0.2; N70 G71 P80 Q130 U0.1 W0.1; N80 G01 X0.0 Z0.0; N90 G01 X6.0 Z-3.0; N100 G02 X12.0 Z-6.0 R3.0; N110 G01 X16.5 Z-6.0; N120 G03 X24.5 Z-10.0 R4.0; N130 G01 X24.5 Z-23.0; N140 G70 P80 Q130; N150 G28 U0.0 W0.0; N160 M05;

N170 M30; PROGRAMME 2

O0028; N10 G28 U0.0 W0.0; N20 G92 S1500; N30 T0505; N40 G96 S1000 F0.3 M03; N50 G90 G00 X26.5 Z3.0; N60 G71 U0.2 R0.2; N70 G71 P80 Q140 U0.1 W0.1; N80 G01 X0.0 Z0.0; N90 G01 X4.0 Z-3.0; N100 G01 X4.0 Z-19.0; N110 G01 X8.0 Z-21.0; N120 G02 X12.0 Z-23.0 R2.0; N130 G01 X16.5 Z-23.0; N140 G03 X24.5 Z-27.0 R4.0; N150 G70 P80 Q140; N160 G28 U0.0 W0.0; N170 M05;

N180 M30;

PROCEDURE OF CUTTING PROCESS OF WORKPIECE BY USING CNC TURNING MACHINE

Procedure To Start The CNC Turning Machine 1.

On main switch power.

2.

On main switch at the CNC machine.

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.

Figure

5.

Press POS button (position).

6.

Press PROG button (program)

7.

Press ‘EDIT MODE’ ,then press DIR button (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. 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.

9.

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

Procedure To Clamp The Workpiece 1.

Figure

Press ‘CLAMP’ button and make sure that the workpiece is hold properly. Close the machine’s 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.

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.

CLAMP BUTTON

MDI MODE

HANDLE X

MANUAL MODE

HANDLE X100

HANDLE Z

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.

OFFSET SETTING

6.

7.

Press ‘HANDLE Z’ follows by ‘HANDLE X’ until the tool touch the workpiece.

HANDLE X

HANDLE Z

Press ‘RESET’ button and then open the machine’s door. Measure the diameter of the workpiece using vernier caliper and then insert the value x using the reading value.

-VERNIER CALIPER-

Procedure To Cut The Workpiece 1.

Figure

Press ‘RESET’ button follow by ‘SINGLE BLOCK’ button. Then press the green button and off the ‘SINGLE BLOCK’button.

SINGLE BLOCK

GREEN BUTTON

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.

3.

Off the power and press ‘MANUAL MODE’. Then open the machine’s door. Hold the workpiece and then press the ‘CLAMP’ button again to open the clamp.

CLAMP BUTTON

GREEN BUTTON (POWER)

Procedure To Off The Machine 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.

Figure

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.

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