Chapter 31, Problem 3CS

To determine

The combination of the materials and the associated processes suitable to produce $25,000$ to $50,000$ units of gear with maximum thickness of $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$2$}\right.\text{ in}\text{.}$ , outer diameter $3.50\text{ in}\text{.}$ , teeth root thickness of $\raisebox{1ex}{$3$}\!\left/ \!\raisebox{-1ex}{$16$}\right.\text{ in}\text{.}$ made from a material with yield strength of $125\text{ ksi}$ and surface hardness of Rockwell $\text{C 25}$ along with the pros and cons of each material.