Manufacturing And Production Technology
Tool life is measured by the

Number of pieces machined between tool sharpenings
Time the tool is in contact with the job
Volume of material removed between tool sharpenings
All of the listed here

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

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.
Between the upper and lower critical temperature and cooled in furnace.

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Manufacturing And Production Technology
The grooving is an operation of

Beveling the extreme end of a workpiece
Reducing the diameter of a workpiece over a very narrow surface
Embossing a diamond shaped pattern on the surface of a workpiece
Enlarging the end of a hole cylindrically

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