DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Chapter 20, Problem 14RQ
To determine
The most widely used process for the fabrication of thermoplastic materials (in terms of number of parts produced).
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Chapter 20 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 20 - Why are the fabrication processes applied to...Ch. 20 - How does the fabrication of a shaped product from...Ch. 20 - What are some of the methods used to shape...Ch. 20 - What are some of the ways that plastic sheet,...Ch. 20 - Prob. 5RQCh. 20 - What types of polymers are most commonly blow...Ch. 20 - What are some common blow molded products, in...Ch. 20 - Why do blow molding molds typically contain a...Ch. 20 - Prob. 9RQCh. 20 - Prob. 10RQ
Ch. 20 - Prob. 11RQCh. 20 - Prob. 12RQCh. 20 - Prob. 13RQCh. 20 - Prob. 14RQCh. 20 - Prob. 15RQCh. 20 - What are some of the benefits of a hot runner...Ch. 20 - Why is the cycle time for the injection molding of...Ch. 20 - Prob. 18RQCh. 20 - Prob. 19RQCh. 20 - What are some of the ways by which a polymer...Ch. 20 - Prob. 21RQCh. 20 - How can the extrusion process be used to produce...Ch. 20 - Prob. 23RQCh. 20 - Prob. 24RQCh. 20 - Prob. 25RQCh. 20 - What is the difference between open-cell and...Ch. 20 - Prob. 27RQCh. 20 - What types of products are produced by...Ch. 20 - Prob. 29RQCh. 20 - What are some of the general properties of...Ch. 20 - What are some of the attractive features of laser...Ch. 20 - What property of plastics is responsible for...Ch. 20 - Prob. 33RQCh. 20 - Prob. 34RQCh. 20 - Prob. 35RQCh. 20 - Prob. 36RQCh. 20 - Prob. 37RQCh. 20 - Prob. 38RQCh. 20 - Why might threaded inserts be preferred over other...Ch. 20 - What are some of the ways in which metal inserts...Ch. 20 - Prob. 41RQCh. 20 - Why does locating a parting line on a sharp corner...Ch. 20 - Prob. 43RQCh. 20 - Prob. 44RQCh. 20 - Prob. 45RQCh. 20 - What property changes occur during vulcanization?Ch. 20 - Prob. 47RQCh. 20 - Prob. 48RQCh. 20 - How are glass fibers produced?Ch. 20 - Prob. 50RQCh. 20 - Prob. 51RQCh. 20 - What are glass-ceramics? How are they produced?Ch. 20 - Prob. 53RQCh. 20 - Describe the differences between the injection...Ch. 20 - Prob. 55RQCh. 20 - What is the difference between slip casting and...Ch. 20 - Prob. 57RQCh. 20 - Prob. 58RQCh. 20 - How does cementation differ from sintering?Ch. 20 - What are the benefits and limitations of machining...Ch. 20 - Prob. 61RQCh. 20 - Why are joining operations usually avoided when...Ch. 20 - Prob. 63RQCh. 20 - Discuss some of the design guidelines that relate...Ch. 20 - Prob. 65RQCh. 20 - Why are the processes used to fabricate...Ch. 20 - How are metals and ceramics combined in the...Ch. 20 - What are some of the processes that can be used to...Ch. 20 - What conditions might be attractive for...Ch. 20 - Prob. 70RQCh. 20 - Prob. 71RQCh. 20 - Prob. 72RQCh. 20 - Prob. 73RQCh. 20 - What are some of the ways that liquefied matrix...Ch. 20 - Prob. 75RQCh. 20 - Prob. 76RQCh. 20 - Prob. 77RQCh. 20 - In what way is pultrusion similar to wire drawing?Ch. 20 - Prob. 79RQCh. 20 - What are some typical products that are made by...Ch. 20 - Prob. 81RQCh. 20 - Prob. 82RQCh. 20 - Prob. 83RQCh. 20 - Prob. 84RQCh. 20 - Prob. 85RQCh. 20 - Prob. 86RQCh. 20 - What is the difference between reaction injection...Ch. 20 - Prob. 88RQCh. 20 - Prob. 89RQCh. 20 - What is a common property objective in...Ch. 20 - Prob. 91RQCh. 20 - Prob. 92RQCh. 20 - Prob. 93RQCh. 20 - What is the major concern when considering the...Ch. 20 - Prob. 95RQCh. 20 - Prob. 1PCh. 20 - Figure 20.A depicts the handles of two large...Ch. 20 - Tires are the dominant product of the rubber...Ch. 20 - Prob. 4PCh. 20 - Prob. 6PCh. 20 - Prob. 8PCh. 20 - Prob. 1CSCh. 20 - For plastic (high-density polyethylene)...Ch. 20 - What might be the pros and cons of weldable...Ch. 20 - Prob. 5CSCh. 20 - Prob. 6CSCh. 20 - Prob. 7CSCh. 20 - Crashworthiness is an important safety...Ch. 20 - Prob. 9CSCh. 20 - Prob. 10CSCh. 20 - Prob. 11CS
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- Define the term Elastoplastic?arrow_forwardSTRESS STRAIN Typical for thermosets Typical for thermoplastics Q/Interpret the following drawingarrow_forwardMake introduction First paragraph: Generally, explain thermoplastic fundamental and their demand in industry. Second paragraph: Highlight the recent demand for conductive thermoplastic. Third paragraph: Highlight the current approach to make conductive thermoplastic.arrow_forward
- Many thermoplastics are brittle below their glass transition temperature. Describe the particular phenomenon that can precede fracture (crack propagation) in some of these?arrow_forwardThere are 4 classifications of structural molecular characteristics of polymers - Linear, Network, Crosslinked. What is the final type? Answer:arrow_forward1. Explain in 1-3 bullets how as a practicing engineer you determine the yield strength of a thermoplastic polymer from a tensile stress-strain curve. 2. Explain what is happening at the yield strength for a thermoplastic polymer from a physical standpoint in 1-3 bullets. (e.g. what are the atoms or polymer chains doing?)arrow_forward
- 1 Which one below is true for thermoplastic polymers? * O They do not soften when heated and do not harden when cooled. O Most cross-linked polymers are thermoplastics. O None of them. O They are harder and stronger than thermosetting polymers.arrow_forwardA manufacturer plant to produce a new thermoplastic product. Select a suitable processing method that can be applied А. Transfer moulding В. Rotating moulding C. Compression moulding D. Castingarrow_forwardConnecting rod (as shown below) is a car part that connects engine piston to crankshaft and converts reciprocating motion into rotating motion. It performs under load at high temperature around 150°C. Long carbon fiber thermoplastic composite (LFT) with 30% carbon fiber has been considered to replace metal (steel or aluminum) rod to improve efficiency. Based on the data for different polymers listed in the table above, which polymer(s) would you choose as the polymer matrix for the connecting rod? What is your rationale?arrow_forward
- (a) There are three main sub-groups of engineering polymers with distinct differences in their structures. Name these sub- groups; describe their structural differences and bonding mechanisms.arrow_forwardDescribe, giving an example, how annealing affects the dynamic-mechanical thermal (DMT) properties of crystalline thermoplastics.arrow_forwardDraw the structure of the idealized modulus-temperature for thermoplastic and thermosetscurveand mention all the transitions.arrow_forward
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