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How much is the value of surface finished, achieved using Ultrasonic Polishing?

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in Advanced Machining by (962k points)
How much is the value of surface finished, achieved using Ultrasonic Polishing?

(a) 0.1 μm

(b) 0.3 μm

(c) 0.5 μm

(d) 0.7 μm

I got this question during an online exam.

The above asked question is from USM in portion Mechanical Processes of Advanced Machining

1 Answer

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Best answer
Right choice is (b) 0.3 μm

To explain: Using Ultrasonic Polishing, very low values of surface finish can be obtained, which may be very low as 0.3 μm.

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