Question

The main cutting force acting on a tool during the turning (orthogonal cutting) operation of metal is $400N$. The turning was performed using $2mm$ depth of cut and $0.1mm/rev$ feed rate. The specific cutting pressure (in $N/m{m}^2$) is

• A. $1000$
• B. $2000$
• C. $3000$
• D. $4000$

Answer 1

The correct option is B $2000$

Specific cutting area per revolution $=wt$
$=0.2m{m}^2/rev$
Specific cutting pressure,
$=\frac{F}{wt}=\frac{400}{0.2}=2000N/m{m}^2$