The size of the spark gap of an electrode is determined by the following factors except :-

Electrode materials and workpiece materials

Why does an electrode need to be reduced in size to produce a cavity

It depends on the shape of the cavity to be produced

It takes quite a long time to corrode the metal

It is controlled by the cutting parameters of the edm die sinking machine

It depends on the suitability of the electrode material with the workpiece

Which of the following statements has nothing to do with the basic principles of EDM?

The anode (electrode) must be of copper material and the cathode (workpiece) must be of steel material

The production of electrical charge occurs between the anode and the cathode (workpiece)

The temperature when the charge is released is very high between 8000°C-12000°C

The production of this charge occurs in a dielectric fluid

The following statements are applicable to Computer Numerical Control (CNC). Select only the incorrect statement.

The program can only be inserted into a CNC machine via punch tape and diskette

The CNC machine will execute everything that has been programmed in the MCU (Machine Control Unit) according to a specific 'Software'

CNC control units such as computers, for example, operate according to programs stored in computer memory

Corrections can be made to the program can be done directly on the machine

What happens if EDM machining is carried out without using Dielectric (water or oil)

Machining cannot be carried out, as there is no current flow

Machining can be carried out, but produces a poor finish

Machining can be carried out, but the electrodes and workpiece will be damaged

Machining cannot be carried out, as there is no cooling system

Soalan Pengetahuan CNC EDM Die Sinking

Authored by Hariz Acu

Instructional Technology, Education

University

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is meant of EDM ?

Electrical die machine

Electrical die set machine

Electrical discharged machine

Electrical die sinking maching

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In the EDM process, the electrodes and workpieces are independent of ?

Oil

Grease

Burr

Spark

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When an electric current is passed from the electrode to the workpiece, this will cause it to occur ?

Spark gap

Spark charged

Spark frequency

Spark discharged

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The effect of temperature during the EDM process of corrosive metals can reach temperatures in between?

8000-10000°C

6000-12000°C

8000-12000°C

9000-12000°C

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The fine particles produced during the corrosion process will be cleaned by ?

Air Spray

Dielectric flushing

Spark dielektrik

Coolant

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

“It is an overcut that the size of the workpiece cavity is larger than the size of the electrode ”, this statement is in accordance with the term ?

Spark gap

Super gap

Clearance gap

Charging gap

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the meaning of the symbol in the diagram above ?

Straightness

Flatness

Squareness

Lineness

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Soalan Pengetahuan CNC EDM Die Sinking

What is meant of EDM ?

In the EDM process, the electrodes and workpieces are independent of ?

When an electric current is passed from the electrode to the workpiece, this will cause it to occur ?

The effect of temperature during the EDM process of corrosive metals can reach temperatures in between?

The fine particles produced during the corrosion process will be cleaned by ?

“It is an overcut that the size of the workpiece cavity is larger than the size of the electrode ”, this statement is in accordance with the term ?

What is the meaning of the symbol in the diagram above ?

This setup will produce a crater-shaped surface on the workpiece, what is the appropriate term for that statement?

…….. is a short circuit that occurs due to carbon particles accumulating in the spark gap.

This setup will produce a crater-shaped surface on the workpiece, what is the appropriate term for that statement ?

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