Manufacturing And Production Technology
The tool life in case of a grinding wheel is the time

Taken between two successive wheel dressings
Taken for a wear of 1 mm on its diameter
Between two successive regrinds of the wheel
Taken for the wheel to be balanced

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Manufacturing And Production Technology
During normalizing process of steel, the specimen is heated

Between the upper and lower critical temperature and cooled in furnace.
Above the upper critical temperature and cooled in still air.
Above the upper critical temperature and cooled in furnace.
Between the upper and lower critical temperature and cooled in still air.

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