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

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

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Manufacturing And Production Technology
The strength of a brazed joint

Increases up to certain gap between the two joining surfaces beyond which it decreases
Decreases up to certain gap between the two joining surfaces beyond which it increases
Decreases with increase in gap between the two joining surfaces
Increases with increase in gap between the two joining surfaces

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