Manufacturing And Production Technology
When the temperature of a solid metal increases,

Strength of the metal decreases but ductility increases
Both strength and ductility of the metal increases
Strength of the metal increases but ductility decreases
Both strength and ductility of the metal decreases

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Manufacturing And Production Technology
In determining the various forces on the chip, Merchant assumed that the

Only continuous chip without built-up-edge is produced
Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece
Cutting velocity remains constant
All of these

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