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

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Manufacturing And Production Technology
Trepanning is an operation of

Sizing and finishing a small diameter hole
Making a cone-shaped enlargement of the end of a hole
Smoothing and squaring the surface around a hole
Producing a hole by removing metal along the circumference of a hollow cutting tool

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