Detailed calculations Problems

Three forces, $P=0\mathrm{.}41kN,R=10kN$ and $S=2\mathrm{.}7kN,$ are applied to the machine component ABD as shown. The cross section containing point $H$ is an $1846mm$ rectangle.

$($a$)$ Sketch the stress element at point $H$ showing all stresses

$($b$)$ Draw the Mohr's circle for the state of stress.

$($c$)$ Compute the maximum in$-$plane shear stress.

$($d$)$ Compute maximum and minimum principal stress

$($e$)$ Draw the principal stress element and the maximum shear stress element. Show the stresses in a properly aligned elements

Question $2)$: Write G$-$code program to machine the part shown in the figure below using CNC milling machine. Use the following information: feed rate $30m\frac{m}{?}$ minute, spindle speed $1400$ rpm $,$ maximum depth of cut is $5$ mm $,$ tool diameter is $10$ mm $.$ Write a comment for each line of your program.WRITE IT USING TYPING PLEASE