CH21 Selected HW Exercises
5.
( ) In a turning operation, the change in diameter of the work part is equal to which one of the following: (1) 1
depth of cut, (2) 2
depth of cut, (3) 1
feed, or (4) 2
feed? 6.
( ) Machined parts can be classified as rotational or nonrotational. Which two of the following are examples of operations that create nonrotational geometries: (1) boring, (2) drilling, (3) milling, (4) planning, and (5) turning? 7.
( ) A turning operation is performed on a cylindrical work part whose diameter = 120 mm and length = 450 mm. Cutting speed = 2.0 m/s, feed = 0.25 mm/rev. We require the material removal rate of 2300 mm^3/sec, estimate the nearest value of the depth of cut (mm) to reach the requirement? (1) 2.3, (2) 4.6, (3) 5.8, (4) all solutions are not correct
8.
( ) For the metal part as shown, there are no thread in the holes, select the appropriate best sequence of the machining using the following process?(a) casting, (b) turning, (c) boring, (d) drilling, (e) shaping, (f) milling, (g) tapping, (h) broaching, (i) plastic molding? (1) b-c-f-d, (2) a-b-c-d, (3) b-f-h-d, (4) b-f-d-g Write your answer in the ( ). Do not circle your answer.
