Question

Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial height. Calculate the three true (log) strains (axial, radial, circumferential) and the total effective true strain (von Mises strain) (10 points) Machining: In a cylindrical turning operation on a horizontal engine lathe we have the following data: Work diameter: 1 inch, Work length: 3 inches, spindle speed: 200 rpm, tool feed rate: 0.01inch/rev., depth of cut per pass: 0.2 inch, ultimate shear strength (USS) of work material: 40,000 psi. Calculate: a. Power required for machining; b. Material Removal Rate (MRR); Time required per pass (10 points)

Answer 1

dli CEA 0.6795

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