EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 21QLP
Explain why the elastic modulus, E, of gray cast iron varies so widely, as shown in Table 12.4.
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Chapter 12 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 12 - Why are steels more difficult to cast than cast...Ch. 12 - What is the significance of hot spots in metal...Ch. 12 - What is shrinkage allowance? Machining allowance?Ch. 12 - Explain the reason for drafts in molds.Ch. 12 - Prob. 5RQCh. 12 - What are light castings and where are they used...Ch. 12 - Name the types of cast irons generally available,...Ch. 12 - Comment on your observations regarding Fig. 12.5.Ch. 12 - Describe the difference between a runner and a...Ch. 12 - What is the difference between machining allowance...
Ch. 12 - What is dross? Can it be eliminated?Ch. 12 - Describe your observation concerning the design...Ch. 12 - If you need only a few castings of the same...Ch. 12 - Do you generally agree with the cost ratings in...Ch. 12 - Describe the nature of the design differences...Ch. 12 - Note in Fig. 12.5 that the ductility of some cast...Ch. 12 - Do you think that there will be fewer defects in a...Ch. 12 - Explain the difference in the importance of drafts...Ch. 12 - What type of cast iron would be suitable for...Ch. 12 - Explain the advantages and limitations of sharp...Ch. 12 - Explain why the elastic modulus, E, of gray cast...Ch. 12 - If you were to incorporate lettering or numbers on...Ch. 12 - The general design recommendations for a well in...Ch. 12 - The heavy regions of parts typically are placed in...Ch. 12 - What are the benefits and drawbacks to having a...Ch. 12 - When designing patterns for casting, patternmakers...Ch. 12 - Using the information given in Table 12.2, develop...Ch. 12 - The part in Figure P12.28 is to be cast of 10% Sn...Ch. 12 - Describe the general design considerations...Ch. 12 - Add more examples of applications to those shown...Ch. 12 - Explain how ribs and serrations are helpful in...Ch. 12 - List casting processes that are suitable for...Ch. 12 - Small amounts of slag and dross often persist...Ch. 12 - If you need only a few units of a particular...Ch. 12 - For the cast metal wheel illustrated in Fig....Ch. 12 - Assume that the introduction to this chapter is...Ch. 12 - In Fig. P12.37, the original casting design shown...Ch. 12 - An incorrect and a correct design for casting are...Ch. 12 - Using the method of inscribed circles, shown in...Ch. 12 - A growing trend is the production of patterns and...Ch. 12 - Repeat Problem 12.40 for the case where (a) a...
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- 6. How do you increase the hardness of components being made from 0.8% carbon steel? Explain the process briefly.arrow_forwardFigure 6.23 shows the tensile engineering stress– strain curve in the elastic region for a gray cast iron. Determine (a) the tangent modulus at 25 MPa (3625 psi) and (b) the secant modulus taken to 35 MPa (5000 psi).arrow_forwardPlease don't provide handwrittem solution ..... In carbon steels, what is “pearlite”? In your explanation, describe both its composition and structure.arrow_forward
- Draw the engineering stress-strain curve for cast iron and indicate the important points on the curve.arrow_forward6. What are the 4 strategies for strengthening metals? Explain in detail. Do these 4 strategies work for all metals regardless of their crystallinity? Why or why not?arrow_forwardwrite 10 physical properties of mild steel. Also Explain each propertyarrow_forward
- 10.A ceramic ball with a diameter of 5 mm is pressed into a steel ball of 10 mm in diameter under a normal load of 100 N. Calculate: (a) the minimum hardness of the steel ball for the contact to remain fully elastic; and (b) the radius of the contact zone. The given parameters are: E ceramic = 450 GPa, E steel = 200 GPa, v ceramic = 0.3, v steel = 0.3, and H ceramic > H steel. 11 A qulinduion11arrow_forwardif u have a variety of materials including low carbon steel, cast iron, high carbon steel, aluminum alloys, and epoxy resin, categorize all these materials into those high formability, low formability, and non- formability, respectivelyarrow_forwardEstimate the linear relationship between the Ultimate Tensile Strength and HBN for the range of brass alloy shown in Figure 4b (ii).arrow_forward
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Casting Metal: the Basics; Author: Casting the Future;https://www.youtube.com/watch?v=2CIcvB72dmk;License: Standard youtube license