By the method of this article, determine the rectangular and polar radii of gyration of the shaded area about the axes shown. Assume r = 0.46a. Answers: ky = i ky = a a

1. How does the type of steel used in firearms affect the overall length of its service life? 2. How have the manufacturing processes of the modern Era anabked gunmakers to produce high-quality firearms that will serve the test of time? 3. What are some finishing techniques that may be used to enhance performance as well?

Complete the following comparison table with the possible answers indicated in each comparison factor:

Which of the following metal forming processes is best suitable for making the cup shaped products? a. Rolling O b. Forging O c. Drawing O d. Extrusion