Fundamentals of Modern Manufacturing, Binder Ready Version: Materials, Processes, and Systems
6th Edition
ISBN: 9781119128694
Author: Mikell P. Groover
Publisher: WILEY
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Chapter 8, Problem 1RQ
To determine
What is polymer?
Expert Solution & Answer
Explanation of Solution
Polymers are long chain molecules connected to each other by covalent bonds. As the name suggest polymers are consisting of repeating units or structures named “mers”. The process of creating polymers from subunits is known as polymerization and the subunits are also called as monomers. There are two type of polymers,
- Natural polymers
- Synthetic polymers
Natural polymers are found in nature itself. It forms without the intervention of external manmade factors. Whereas synthetic polymers are man-made polymers.
The nature of polymers varies, depending on the monomers and process of polymerization. Polymers are elastic in nature. The polymers are used in tyre, pipe etc.
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motor supplies 200 kW at 6 Hz to flange A of the shaft shown in Figure. Gear B transfers 125 W of power to operating machinery in the factory, and the remaining power in the shaft is mansferred by gear D. Shafts (1) and (2) are solid aluminum (G = 28 GPa) shafts that have the same diameter and an allowable shear stress of t= 40 MPa. Shaft (3) is a solid steel (G = 80 GPa) shaft with an allowable shear stress of t = 55 MPa. Determine:
a) the minimum permissible diameter for aluminum shafts (1) and (2)
b) the minimum permissible diameter for steel shaft (3).
c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b).
Chapter 8 Solutions
Fundamentals of Modern Manufacturing, Binder Ready Version: Materials, Processes, and Systems
Ch. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
Ch. 8 - Prob. 11RQCh. 8 - 8.12 What are some of the factor that influence a...Ch. 8 - 8.13 Why are fillers added to a polymer?
Ch. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - 8.16 Describe the difference in mechanical...Ch. 8 - Prob. 17RQCh. 8 - Prob. 18RQCh. 8 - Prob. 19RQCh. 8 - Prob. 20RQCh. 8 - Prob. 21RQCh. 8 - Prob. 22RQCh. 8 - Prob. 23RQCh. 8 - Prob. 24RQCh. 8 - Prob. 25RQCh. 8 - 8.26 What is the primary polymer ingredient in...Ch. 8 - Prob. 27RQCh. 8 - Prob. 28RQCh. 8 - Prob. 29RQ
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