Toterial$-1$

Date: $0808/2024$

In a steel shaft $(060$ mm $)$ machining process $($orthogonal machining$),$ the cutting force and the thrust foroe are measured by a tool dymancmeter as $1350$ N and $1300$ N $,$ respectively. Back rake angle of the tool is $6.$ Feed is $0\mathrm{.}8$ mm rev and length of cut chip is $9000$ mm $($cootinuous chip$)$ at a rotational speed of $150$ tpm $.$ Width of cut is $5$ mm $.$ The cutting ipeed is $150\frac{m}{m}in.$ Evaluate the following by grophical method $($i$)$ friction. force, $($ii$)$ nomal force to friction force, $($iii$)$ shemr mogle, $($iv$)$ shear force. $($v$)$ coefficient of friction, $($vi$)$ normal force to shear fores, $($vii$)$ shear stress required during metal cutting, $($ viii$)$ shear velocity, and $($ix$)$ stip flow velocity Also calculate the shear strain and power consumed in metal cutting.