A) 10 min
B) 12.5 min
C) 15 min
D) 20 min
Correct Answer: B
Solution :
Number of strokes, \[n=\frac{Length\,\,of\,\,stroke}{Feed\,\,rate}\] \[=\frac{30}{0.3}=100\] Length of cut, \[L=700+2\times 25=750\,\,mm\] Cutting time \[=\frac{L\times n\times 1.5}{{{v}_{c}}}\] \[=\frac{0.75\times 100\times 1.5}{9}\] \[=12.5\text{ }min\]You need to login to perform this action.
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