lab 6 edm wire cutportal.unimap.edu.my/portal/page/portal30/lecture... · describe briefly the...

Advanced Manufacturing Technology School of Manufacturing

EPT 311 2010

UNIVERSITI MALAYSIA PERLIS SCHOOL OF MANUFACTURING

ENGINEERING

CNC EDM WIRE CUT

MACHINE

ADVANCED MANUFACTURING

TECHNOLOGY -EPT 311

GROUP :

DATE OF EXPERIMENT :

GROUP MEMBER’S NAME :

LAB 4

FAKULTI TEKNOLOGI KEJURUTERAAN

II - DPT 311

Advanced Machining TechnologyDPT 311

Faculty of Engineering Technology2014


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Standard Operation Procedures

For EDM Wire Cut

No. Sub No. Instruction Picture

1.0 - Powering UP Machine

EDM Wire Cut

1.1 Switch On Main Power Supply. Note: Turn Anti Clockwise

1.2 Switch On Machine Main Switch Note: Turn Clockwise

1.3 Press SOURCE [ON] Button Note: Wait for several minutes.

1.4 Press POWER [ON] Button

2.0 - Home Position

2.1

Press [ENT] Button Note: Make sure that Z, X, Y, U and V sign

is correct.

2.2 Press [MOVE] at Screen

Z +

X –

Y –

U –

V -


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2.3 Change Coord. system from 54 to 55

2.4

Press [U] and [V] at Screen

2.5 Press [ENT] Button Note: The Top part and the Bottom part are

now aligned.

3.0 - Threading Wire

3.1 Press [Z -] until the height between top

and bottom part are within 8cm ~ 15cm.

3.2 Press Threading II Button

4.0 - Using Heart NC

4.1 Press the [Q vic] at Screen {Right} 3

4.2 Press [Heart NC] at Screen {Right}

4.3 Press [Heart NC] at Screen {Center}

4.4 Press [Second Lines] at Screen

{Bottom}

4.4.1 To draw Horizontal Line

Press [X-Axis Paral Ln] at Screen

4.4.2 To draw Vertical Line

Press [Y-Axis Paral Ln] at Screen

4.4.3 To draw Circle

Press [C + R Circ] at Screen

4.4.4

To place Line/Circle at specific

location, input X and Y coordinate.

For example -10.0,-10.0 Note: Unit is in mm

8 ~ 15

cm


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4.5

a) First, draw the Material Area. Note: Make sure the Origin must be on

the Top Left of your material area.

b) Draw a box with length and width are

20mm each.

c) Draw 4 circles on each edge of the

box. The circle radius is 3mm. Hint: X-Line [0.0 and -30.0].

Y-Line [0.0 and 30.0].

Press [FIT] button.

4.6 Once the drawing is completed. Press

[Drawing Lines] at Screen {Bottom}

4.7 Press [Overdraw] at Screen {Center}

4.8

a) Click on the cutting path. Note: You will see the white line.

b) Complete the cutting path by

following the drawing that you just

created. Complete the Loop.

4.9 Once completed, Press [Wire Cut Defs]

at Screen {Bottom}

4.10

Press [Punch] button on Screen. Note: a) [Die], cutting wire will cut

from inside

b) [Punch], cutting wire will

cut from outside.

4.11

a) Definition Parameters dialog box is

displayed on Screen.

b) Click [OK]


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4.12

a) Condition Search dialog box is


b) Mach. Fluid => Water

c) Wire Diameter => 0.25

d) Wire Material => Brass

e) Work => Steel

f) Thickness => 5.0

g) Mach. => Punch

h) Nozzle Possition => Open-U

i) 1Cond. Number => 1 Time

j) Finally, Click [Find (F)]

4.13

a) “Click on shape from which path is to

be generated” dialog box is displayed

on Screen.

b) Click the White Line. Note: Once clicked, the white line

turns purple.

4.14

a) “Click on the starting point direction

of shape” dialog box is displayed

on Screen.

b) Input location [-5.0,-15.0] at the input

coordinate box.

c) “Approach Element” dialog box is


b) Click at the center of the white line. Note: The line will change color to

yellow.

4.15 Press [Confirm]

4.16 Press [End Comm]

4.17 a) Press [Gen NC Data]

b) Input File name.

4.18 Press [OK]

4.19 Press [OK]

4.20 a) Press [to NC]

b) Press [Don’t Save]

5.0 - Setting Up Graphics Cutting Path

5.1 Press [Edit]

5.2 Press [Load]



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5.3 Select [File Name] Note: Your File Name.

-

5.4 Press [OK] -

5.5 Press [Graphics] at Screen {Side} -

5.6 Select [3D]

5.7 Set No. Contour = 50

5.8 Press [Draw]

5.9 Press [Save] -

6.0 - Material Set Up

6.1 a) Place the Material on the Base.

b) Use ‘L’ to align the Material

6.2 a) Place the Clamp.

b) Place the Spacer.

6.3 Place and tight the Bolt using Allen Key

size 6mm.

7.0 - Setting Material Origin

7.1 Press [Manual] -

7.2 Press [Appr. Face] -

7.3 Press [1 Axis] -

7.4 Press [X] -

7.5 Input [Wire Diameter] = 0.25 -

7.6 Input [Inverted Value] = 1.0 -

7.7 Click [ABS] -


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7.8 Press [ON] on [Coord. 0 Set] -

7.9 Move the wire close to the edge of the

material in X-axis. -

7.10 Press [ENT]

7.11 Press [Appr. Face] -

7.12 Press [1 Axis] -

7.13 Press [Y] than press [-] -

7.14 Input [Wire Diameter] = 0.25 -

7.15 Input [Inverted Value] = 1.0 -

7.16 Click [ABS] -

7.17 Press [ON] on [Coord. 0 Set] -

7.18 Move the wire close to the edge of the

material in Y-axis. -

7.19 Press [ENT]

7.20

a) Press [Move]

b) Press [X], Input value = -10.0

c) Press [Y], Input value = 10.0

d) Press [ENT]

-

8.0 - Start Cutting

8.1 Press [Z-] until the gap between Top

part and material between 2 ~ 3 mm. -

8.2

a) Press [Move]

b) Press [X], Input value = -5.0

c) Press [Y], Input value = -15.0

d) Press [ENT]

-

8.3 Press [RUN] at Screen {side}

8.4 Click [Home] at keyboard -

8.5 Press [ENT] -

9.0 - Colleting Finish Part

9.0 Cut the Wire by Pressing [I Cut] button.

9.1 Press [Z-] until the gap between Top

part and material between 15 ~ 20 mm. -

9.2

Press [X] and Press [Y] to move the

bottom part from away from the work

piece.

-


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9.3 Collect your finish product.

9.4 Remove the work piece.

10.0 - Shutting Down Machine

10.1 Press POWER [OFF] Button

10.2 Press SOURCE [OFF] Button Note: Wait for several minutes.

10.3 Switch Off Machine Main Switch Note: Turn Anti Clockwise

10.4 Switch Off Main Power Supply. Note: Turn Clockwise

11.0 - Machine Cleaning

11.1 Take the Air Gun


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11.2 Open the air valve.

11.3 Spray the Air Gun to dry the machine

12.4 Roll back the Air Gun -

Answer all the questions below:

1. Describe briefly the working principle of CNC EDM Wire Cut Machine. [5 marks]

[How machine CNC EDM Wire Cut Machine works?]


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2. What is the wire diameter size used at the EDM Wire Cut? [1 mark]

3. What is the material of the wire used at the EDM Wire Cut? [1 mark]

4. What is the maximum workpiece size [Width x Length x Height] that can be machined at

the EDM Wire Cut? [1 marks]

5. What do you understand about dielectric medium used in the EDM Wire Cut? [2 marks]

6. Give 3 examples of material that can be cut using EDM wire Cut. [1.5 marks]

7. Give 3 examples of material that cannot be cut using EDM wire Cut. [1.5 marks]


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8. Explain briefly why those materials [answers for question no. 7] cannot be cut using EDM

Wire Cut? [2 marks]

9. Why does the water in the EDM Wire Cut machine need to be filtered? [2 marks]

10. Why you need to used a ‘spacer’ during setting up the workpiece at the EDM Wire Cut?

[1 marks]

TOTAL MARKS: 18 MARKS

lab 6 edm wire cutportal.unimap.edu.my/portal/page/portal30/lecture... · describe briefly the...

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