Question

how we can increase roughness of an object​

Answer 1

Answer:

A decrease in feed rate results in better surface roughness, which causes slightly faster tool wear; an increase in cutting speed produces better surface roughness and higher tool wear.

Answer 2

Answer:

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Explanation:

A decrease in feed rate results in better surface roughness, which causes slightly faster tool wear; an increase in cutting speed produces better surface roughness and higher tool wear. Regenerative vibration accelerates tool wear resulting in poor surface roughness and tool life.