Q$4$: In an orthogonal cutting operation, the depth of cut $(t_o)=0\mathrm{.}13mm,$ cutting speed $(V_c)=120\frac{m}{m}in,$ rake angle $()=10$ and the width of cut$(w)=6mm.$ It is observed that chip thickness $(t_c)=0\mathrm{.}23mm,$ and thrust force $(F_t)=200N.$ The coefficient of friction $()$ was found to be $0\mathrm{.}5.$

Calculate

$($a$)$ The Cutting force $(F_c)$

$($b$)$ The Friction angie $$

$($c$)$ The Friction force $F$

Solution: