After a recent collapse of a structure in which many people died, an Engineer came to know about a bridge which is marginally safe. He
informed his superior who asked him to stay calm and not to discuss with
anyone, while waiting for the next year budget sessions to get some
financial help for the repair required. What should the engineer do?

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.