Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 12, Problem 38SDP
An incorrect and a correct design for casting are shown in Fig. P12.38. Review the changes made and comment on their advantages.
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Chapter 12 Solutions
Manufacturing Engineering & Technology
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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- Explain important rules that must be kept in mind while designing castings?arrow_forward4 In sand casting, the volumetric size of the pattern is (a) bigger than, (b) same size as, or (c) smaller than the cast part? Explain your answerarrow_forwardExplain important rules that must be kept in mind while designing casting?arrow_forward
- Mention all the features of centrifugal casting.arrow_forwardA vertical true centrifugal casting process is used to make tube sections with length = 10.0 in and outside diameter = 6.0 in. The inside diameter of the tube 5.5 in at the top and 5.0 in at the bottom. At what speed must the tube be rotated during the operation in order to achieve these specifications?arrow_forward(27) List the applications of permanent mold casting along with metals most commonly cast for permanent mold casting.arrow_forward
- Explain the gating system in casting with neat diagram . What are the elements of the gating system?arrow_forward2. What are the general defects found in casting processes? Name and briefly describe two.arrow_forwarda riser in the shape of a sphere is to be designed for a sand casting mold. the casting is a rectangular plate, with length 200mm, width 100mm, and thickness 18mm. if the total solidification time of the casting itself is known to be 3.5 mm, determine the diameter of the riser so that it will take 25% longer for the riser to solidify. assume a value of 2 for ‘n’ m( the exponent in chvorinov’s rule). know the volume and surface area of a sphere.arrow_forward
- What is a pattern? What are the consideration necessary while designing pattern in casting?arrow_forwardpouring basin in a sand casting? 3. Explain why a sprue should be tapered? 4. What are the disadvantages of die casting? 5. Explain the various kinds of patterns in use. What are the allowances provided, when making a pattern? How do the patterns differ from the casting required?arrow_forwardExplain casting process?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