Manufacturing And Production Technology
The snag grinding is done

Any one of the above
To grind exterior cylindrical surfaces
To produce good surface finish and high degree of accuracy
To remove considerable amount of metal without regard to accuracy of the finished surface

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Manufacturing And Production Technology
In ultrasonic machining, the metal is removed by

Erosion caused by rapidly recurring spark discharges between the tool and work
Using abrasive slurry between the tool and work
Maintaining an electrolyte between the work and tool in a very small gap between the two
Direct contact of tool with the work

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