Question

A new lathe insert is used on a 100 mm diameter steel workpart, with the lathe going at 300 rpm the insert lasts about 321 min, but at a 100 rpm it lasts for 2010 min. What material could you assume the lathe insert is made out of?

Answer 1

Answer:

two unknowns (C and n) can use two equations

1) vT^n=C

2)vT^n=C

n= 0.6

C=9510

Ceramic

Explanation:

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