Virtual Labs

Mechanical Engineering Micromachining lab Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

To study influence of process parameters on the Wire EDM

Choose difficulty:

Beginner

Intermediate

Advanced

WEDM generally uses,

a: Fixed frequency, pulse time (τp ) and pulse off time (Toff) Explanation

Explanation

b: Variable frequency, pulse time (τp ) and pulse off time (Toff) Explanation

Explanation

c: Constant Voltage and Current Explanation

Explanation

d: All of the above Explanation

Explanation

The material removal rate depends on

a: Pulse time (τp ) Explanation

Explanation

b: Current (Ip) Explanation

Explanation

c: pulse off time (Toff) Explanation

Explanation

d: All of the above Explanation

Explanation

Selection of process parameters are done on the basis of job

a: Specification Explanation

Explanation

b: Roughness Explanation

Explanation

c: Matrix Explanation

Explanation

d: Productivity Explanation

Explanation

Wire EDM is generally used for ferrous materials with

a: Direct polarity (Wire -ve and work +ve) Explanation

Explanation

b: Reverse polarity (Wire +ve and work -ve) Explanation

Explanation

c: The machine automatically selects polarity Explanation

Explanation

d: None of the above Explanation

Explanation

Does porosity in job material affect machining process?

a: Yes Explanation

Explanation

b: No Explanation

Explanation

c: At times Explanation

Explanation

d: None of Above Explanation

Explanation

Accuracy of the job depends upon

a: Pulse time (τp ) Explanation

Explanation

b: Current (Ip) Explanation

Explanation

c: Wire speed Explanation

Explanation

d: Wire tension and feed rate Explanation

Explanation

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