Quiz on Electrical Discharge Machining

What is Electrical Discharge Machining (EDM)?

• A non-traditional machining process using electrical discharges

• A traditional machining process using mechanical force

• A method that only uses cutting tools

• A process that does not involve any energy

What are the two electrodes involved in EDM?

• The workpiece and a tool electrode

• Two tool electrodes

• Two workpieces

• A tool electrode and a cutting tool

What role does the dielectric fluid play in EDM?

• Acts as an insulator until a high voltage is applied

• Cools the electrodes

• Increases the cutting speed

• Removes the workpiece

What happens when a voltage is applied in EDM?

• The dielectric fluid breaks down, creating a spark

• The electrodes melt

• The workpiece is immediately removed

• The process stops

What is one of the key advantages of EDM?

• Non-contact machining

• High cutting forces

• Limited material types

• Requires physical contact

In which industry is EDM widely used for manufacturing turbine blades?

• Aerospace

• Medical

• Automotive

• Electronics

What type of EDM uses a thin, traveling wire as the electrode?

• Wire EDM

• Sinker EDM

• EDM drilling

• Conventional machining

What is the purpose of flushing in EDM?

• To remove eroded material and prevent short circuits

• To cool the electrodes

• To increase the voltage

• To enhance the cutting speed

What is the maximum temperature generated by the spark in EDM?

• 12,000°C

• 1,200°C

• 120°C

• 12°C