Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 12, Problem 37SDP
In Fig. P12.37, the original casting design shown in (a) was resized and modified to incorporate ribs in the design shown in (b). The casting is round and has a vertical axis of symmetry. What advantages do you think the new design has as a functional part over the old one?
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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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- As quick as possible. Describe some common casting faults, and suggest steps that may be taken to minimize the risk of such faults occurring.arrow_forwardYou were required to make 1000 simple small parts in aluminum. Would using a permanent mold be less expensive per part then preparing 1000 sand molds explain?arrow_forwardCasting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. You are given a task to fabricate an engine block. In your own words, explain how to fabricate it using any suitable four types of processes which can be used and discuss the benefits of each processesarrow_forward
- 01 : What is the difference between casting and forging process? Explain the three stages in casting process and its applications.arrow_forwardA vertical centrifugal casting process is used to produce bushings that are 0.2 m outside diameter and 0.2 m in long. If the rotational speed during solidification is 500 rpm, determine the inside diameter at the bottom of the bushing if the diameter at the top is 0.084 m. * Add filearrow_forwardWhen precision services are required on castings which casting processes are most likely to need a secondary operation subsequent to casting?arrow_forward
- where are the die cores placed in die casting?arrow_forwardFor a sand casting a steel rectangular plate with dimensions 80mm x 120mm x 20mm. Calculate shrinkage and draft allowance. And draw the designed pattern. Assume shrinkage of material as 0.1% for 12 inch, pattern material is wood and assume suitable draft anglesarrow_forwardExplain the Desirable Mold Properties in sand casting?arrow_forward
- Explain casting process?arrow_forwardDetermine the time required to fill the mold cavity along with the riser as shown in the following figure. A slab of 1500 mm x 750 mm x 500 mm is required to be cast using a sand casting process. It was observed previously that the total solidification time (T) for this casting = 1.6 min. Find out the cylindrical riser dimensions (diameter to height ratio = 1) for a solidification time T = 5 min.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