During ultrasonic machining the metal removal is effected by – McqOptions

MCQOPTIONS

1.	During ultrasonic machining the metal removal is effected by
A.	High frequency sound waves
B.	High frequency eddy currents
C.	Rubbing action between tool and work piece
D.	Hammering action of abrasive particles
E.	All of the above
Answer» E.

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