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 1P
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Give the name of the two products, its composite material and the fabrication methods.
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Question:What are the advantages and
limitations of the use of composite materials
in engineering applications.Explain in detail.
(b) Which of the following plastic and composite materials processing is most
suitable for the application of polymer automotive body panel? Explain how the
selected manufacturing process selected can be used to produce the product shown
in Figure 1.2 below
• Injection Moulding
• Reaction injection Moulding (RIM)
• Blow Moulding
• Rotational Moulding
• Thermoforming
• Compression Moulding (CM)
• Transfer Moulding (TM)
• Casting
• Foam Moulding
SULIT
SULIT
(BMCG 2323)
Figure 1.2 Example of polymer automotive body panel
Why are composites used in
engineering?
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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- Give some examples of commercial products which are laminar composite structures.arrow_forwardVarious patterns of loading continuously aligned fiber-reinforced composites with the help of diagrams.arrow_forwardSome pistons for automobile engines might be produced from a composite material containing small,hard silicon carbide particles in an aluminium alloy matrix.explain what benefits each material in the composite may provide to the overall part.what problems might the different properties of the two materials cause in producing the part?arrow_forward
- 7arrow_forwardYou have been tasked to design and fabricate a set of low cost, lightweight, constant “C” cross-section side rails for a new composite production ladder. What (a) fiber type, (b) resin type, (c) product form and (d) fabrication process would you select and why for each above?arrow_forwardClassify the types of composite materials based on the matrix and reinforcement materials. Briefly explain the main characteristics of Polymeric Matrix Composites (PMC) and their engineering applications.arrow_forward
- (b) design guideline. Using the material selection chart provided (Figure 1) and appropriate (i) Select suitable materials for the skateboard deck as a panel under the following conditions: (1) minimum strength is 100 MPa, (2) a high strength per unit mass and (3) the design guideline passing through centre of the wood bubble. Show your design constraint lines on the graph provided and list the selected materials.arrow_forwardQ#04 (a) : What are composite materials? Discuss the functions of Re-inforcing agent and matrix materials. (b) : Name different types of advanced fibres.arrow_forwardPlease solve accurate and exact answers sir please!! (it must be typed not handwritten) Thanks!!arrow_forward
- 3. The geometry of the reinforcing phase in a composite greatly determines the overall properties. Polycarbonate has a Modulus of Elasticity=2.2 GPa, Tensile Strength-62.5 MPa. Carbon Fiber has a Modulus of Elasticity=228 GPa, Tensile Strength=3.5 GPa. For a 40 vol% carbon fiber and a 60 vol% polycarbonate matrix composite, compute the Tensile Strength and Young's Modulus for the composite for the following situations. Assume longitudinal loading. a. Continuous and aligned fibers b. Discontinuous and aligned fibers with I> le where 1 = 101, (K = 1). c. Discontinuous and aligned fibers with I< le where I= 0.51, (K = 1). d. Which of these composites is the strongest? Which is the stiffest (has the highest Young's Modulus)?arrow_forwardI need the solution of this question,please. Prove that the area fraction equal to volume fraction when using aligned fibers in composite materials.arrow_forwardNonearrow_forward
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composite-materials; Author: Tonya Coffey;https://www.youtube.com/watch?v=Vu6ik-bcKf4;License: Standard youtube license