Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 1 (Q.No. 32)
32.
Which of the following statement is wrong about ultra-sonic machining?
It is best suited for machining hard and brittle materials.
It cuts materials at very slow speeds.
It removes large amount of material.
It produces good surface finish.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Amiya mishra said:   9 years ago
The correct answer is A, as best of my knowledge, the main mechanism of removal of material from work surface in USM is "CRATER FAILURE", WHICH IS ONE KIND OF BRITTLE FAILURE OF MATERIAL.

And the depth of the indentation in the case of USM is very small, so USM is a considerably less material removal machining process.

KOTI SRINUBABU said:   8 years ago
@Sam.

The answer C is right. When compared to ECM, EDM it removes small material.

Deepak S said:   8 years ago
The main disadvantage in non-conventional machining process is that the metal removal rate is much slower than conventional machining process.

Ashish PAtel said:   6 years ago
Application:

This machining is used to machine hard and brittle material like carbide, ceramic, glass etc.

This is used in machining of die and tool of drill, wire drawing machine etc.

Used in fabrication of silicon nitrite turbine blade.

It is used to cut diamond in desire shape.

It is used machining of machining non-conductive hard material which cannot be machined by ECM or EDM due to poor conductivity.


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