Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 19, Problem 46SDP
Make a survey of a variety of sports equipment, such as bicycles, tennis racquets, golf clubs, and baseball bats, and identify the components made of composite materials. Explain the reasons for and advantages of using composites for these specific applications.
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Chapter 19 Solutions
Manufacturing Engineering & Technology
Ch. 19 - What are the forms of raw materials for processing...Ch. 19 - What is extrusion? What products are produced by...Ch. 19 - Describe the features of an extruder screw and...Ch. 19 - How are injection-molding machines rated?Ch. 19 - What is (a) a parison, (b) a plastisol, and (c) a...Ch. 19 - How is thin plastic film produced?Ch. 19 - List several common products that can be made by...Ch. 19 - What similarities and differences are there...Ch. 19 - Explain the difference between potting and...Ch. 19 - What is thermoforming?
Ch. 19 - Describe runner, gate, sprue, and well.Ch. 19 - Describe the advantages of cold-forming plastics...Ch. 19 - What are the characteristics of filament-wound...Ch. 19 - Describe the methods that can be used to make...Ch. 19 - What is pultrusion? Pulforming?Ch. 19 - How are very thin plastic film produced?Ch. 19 - What process is used to make foam drinking cups?Ch. 19 - If a polymer is in the form of a thin sheet, is it...Ch. 19 - How are polymer fibers made? Why are they much...Ch. 19 - What are the advantages of coextrusion?Ch. 19 - Explain how latex rubber gloves are made.Ch. 19 - Describe the features of a screw extruder...Ch. 19 - Explain why injection molding is capable of...Ch. 19 - Prob. 24QLPCh. 19 - Explain the reasons that some plastic-forming...Ch. 19 - Describe the problems involved in recycling...Ch. 19 - Can thermosetting plastics be used in injection...Ch. 19 - Inspect some plastic containers, such as those...Ch. 19 - An injection-molded nylon gear is found to contain...Ch. 19 - Explain why operations such as blow molding and...Ch. 19 - Prob. 31QLPCh. 19 - Typical production rates are given in Table 19.2....Ch. 19 - What determines the cycle time for (a) injection...Ch. 19 - Does the pull-in defect (sink marks) shown in Fig....Ch. 19 - What determines the intervals at which the...Ch. 19 - Identify processes that would be suitable for...Ch. 19 - Identify processes that are capable of producing...Ch. 19 - Inspect several electrical components, such as...Ch. 19 - Inspect several similar products that are made of...Ch. 19 - What are the advantages of using whiskers a...Ch. 19 - Construct a table that lists the main...Ch. 19 - Estimate the die-clamping force required for...Ch. 19 - A 2-Iitcr plastic beverage bottle is made by blow...Ch. 19 - Consider a Styrofoam drinking cup. Measure the...Ch. 19 - In Fig. 19.2, what flight angle, , should be used...Ch. 19 - Make a survey of a variety of sports equipment,...Ch. 19 - Explain the design considerations involved in...Ch. 19 - Give examples of several parts suitable for insert...Ch. 19 - Give other examples of design modifications in...Ch. 19 - With specific examples, discuss the design issues...Ch. 19 - Die swell in extrusion is radially uniform for...Ch. 19 - Inspect various plastic components in a typical...Ch. 19 - It is well known that plastic forks, spoons, and...Ch. 19 - Prob. 55SDPCh. 19 - Make a survey of the technical literature, and...Ch. 19 - Prob. 57SDPCh. 19 - Prob. 58SDPCh. 19 - Prob. 59SDPCh. 19 - Examine some common and colorful plastic poker...Ch. 19 - Obtain different styles of toothpaste tubes,...Ch. 19 - By incorporating small amounts of blowing agent,...
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- A.1 (i) (ii) What other materials properties would you need to consider in choosing the best lightweighting option at higher service temperatures (400-750.C)? Based on the information you have, and your own knowledge from the course, which materials system would you now recommend for this higher temperature service application? Justify your answer. Explain why over the last 20 years, metal matrix composites have attracted much interest but have yet to achieve their full potential. Give examples of the use of metal matrix composites in automotive applications.arrow_forwardDescribe three of the functions of the matrix in fibre- reinforced composites. With the aid of sketches compare and contrast the fatigue fracture appearance between an alloy that failed at a low fatigue load and one that failed at a high fatigue load. Propose and briefly describe one non-destructive method that can be used to detect small cracks on the surface of a metallic alloy.arrow_forwardGive some examples of commercial products which are laminar composite structures.arrow_forward
- The use and applications of plastics in our everyday life cannot be denied. Identify and discuss three specific properties of plastics that has led to their applications in the following fields: (i) Construction (ii) Transportarrow_forwardList at most 5 Metallurgy composites without explanation. (Add references).arrow_forwardPlease tell in detail about macroscopic composites.arrow_forward
- Regarding amorphous plastics, explain why they tend to have higher tensile strength when deformed compared to when not. please include an illustrationarrow_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_forwardIllustrate the difference between crystalline and amorphous polymers structure and explain the effect of this difference on their properties and applications. Show examples of polymers that are not crystalline or semi-crystalline.arrow_forward
- Composite materials represent important part of engineering materials and their use is on the rise for high performance engineering applications. You will need to choose one engineering composite system and critically describe the production method. Support your answer with relevant data and ICT graphs.arrow_forwardWhat are the different types of Plastic Materials? Discuss each briefly (at least 4 types).arrow_forwardwhat is specific strength? why fibers have very high specific strength?arrow_forward
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composite-materials; Author: Tonya Coffey;https://www.youtube.com/watch?v=Vu6ik-bcKf4;License: Standard youtube license