Manufacturing And Production Technology
The tool life is said to be over if

Overheating and fuming due to heat of friction starts
There is sudden increase in cutting forces and power consumption
Poor surface finish is obtained
All of these

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Manufacturing And Production Technology
Which of the following statement is correct regarding grinding of high carbon steel?

The grinding wheel has to be of open structure.
All of these
Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
Aluminium oxide wheels are employed.

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