A440c stainless steel alloy has the following properties: density 0.28 lb/in^3, elastic modulus 29 mpsi, yield strength 275 ksi, and work hardening exponent 0.04. what would be the ultimate tensile strength (find both nominal and true)? (hint: use sigma y as sigma nom, and find total strain (true and nominal))

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.