Manufacturing And Production Technology
Glazing in grinding wheels takes place when the

Wheel is too soft and wheel revolves at a very high speed
Wheel is too hard and wheel revolves at very slow speed
Wheel is too soft or wheel revolves at a very slow speed
Wheel is too hard or wheel revolves at a very high speed

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

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

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