Are the locations of maximum temperature and crater wear related? If so, explain why

22.28 Titanium-nitride coatings on tools reduce the coefficient of friction at the tool–chip interface. What is the significance of this property?

21.38 As shown in Figure. 21.14, the percentage of the total cut?ting energy carried away by the chip increases with increasing cutting speed. Why?

Your boss requests a recommendation on which process to use to weld the high strength structural steel rail tank cars hull section. You have this additional information: P-GMAW Productivity is substantially lower. However, you have welders already qualified to do manual p-GMAW welding. Labor is 80% of total cost HYPERFILLⓇ® Productivity gains are important, and the volume of the product is sufficient on the rail tank cars to justify capital investment. With confidence, you respond: Use process because .(Give process and short explanation for why you want to use that process)