Question

A milling cutter having $8$ teeth is rotating at $100rpm$. The workpiece feed is set at $40mm/min$ the feed per tooth is

• A. $5mm$
• B. $0.05mm$
• C. $0.4mm$
• D. $0.2mm$

Answer 1

The correct option is B $0.05mm$

Numer of teeth $=8$
Feed $=40mm/min$

$\text{Feed No.of teeth =}\times \text{feed per tooth}\times rpm$

$40=8\times$ feed per tooth $\left(f_t\right)\times 100$
$f_t=\frac{40}{8\times 100}=0.05mm$