Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Chapter 15, Problem 25RQ
To determine
Benefits of heated-manifold direct-injection die casting.
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identify some of the important advantages of shape-casting process
What is the advantage in casting turbine blades that have either highly aligned grain boundaries or no grain boundaries at all?
In turbine blade casting, how is a single-crystal structure achieved?
Select one or more:
a.
By using a curving coil-like channel in the casting mould
b.
By removing grain boundaries by hot working and recrystallisation
c.
By careful control of the temperatures of the mould
d.
By introducing impurities into the molten alloy in the mould
Chapter 15 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 15 - What are some of the major disadvantages of the...Ch. 15 - What are some possible limitations of multiple-use...Ch. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Why do permanent-mold castings generally have...Ch. 15 - Prob. 6RQCh. 15 - What is semipermanent-mold casting?Ch. 15 - Why might low production runs be unattractive for...Ch. 15 - Prob. 9RQCh. 15 - In addition to the mold cavity, what additional...
Ch. 15 - Prob. 11RQCh. 15 - Prob. 12RQCh. 15 - Prob. 13RQCh. 15 - Prob. 14RQCh. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - What types of products would be possible...Ch. 15 - Prob. 18RQCh. 15 - What are the most common die-cast materials?Ch. 15 - Contrast the materials used to make dies for...Ch. 15 - Prob. 21RQCh. 15 - Prob. 22RQCh. 15 - Prob. 23RQCh. 15 - Prob. 24RQCh. 15 - Prob. 25RQCh. 15 - Prob. 26RQCh. 15 - How does the air in the mold cavity escape in the...Ch. 15 - Are risers employed in die casting? Can sand cores...Ch. 15 - Prob. 29RQCh. 15 - Give some examples of cast-in inserts.Ch. 15 - Prob. 31RQCh. 15 - Prob. 32RQCh. 15 - Prob. 33RQCh. 15 - Prob. 34RQCh. 15 - Prob. 35RQCh. 15 - What is a thixotropic material? How does it...Ch. 15 - What are some of the attractive features of...Ch. 15 - Describe the inner surface profile of true...Ch. 15 - Prob. 39RQCh. 15 - Prob. 40RQCh. 15 - Prob. 41RQCh. 15 - Prob. 42RQCh. 15 - Prob. 43RQCh. 15 - What types of equipment are used by foundries to...Ch. 15 - What are some of the factors that influence the...Ch. 15 - What are some of the possible feedstock materials...Ch. 15 - What types of metals are commonly melted in...Ch. 15 - What are some of the ways that the melting rate of...Ch. 15 - What are some of the pros and cons of indirect...Ch. 15 - Prob. 50RQCh. 15 - Prob. 51RQCh. 15 - Prob. 52RQCh. 15 - What are the primary functions of a pouring...Ch. 15 - Prob. 54RQCh. 15 - Prob. 55RQCh. 15 - What are some common ways to remove cores from...Ch. 15 - Prob. 57RQCh. 15 - Prob. 58RQCh. 15 - What is the difference between infiltration and...Ch. 15 - Prob. 60RQCh. 15 - What are some of the ways that industrial robots...Ch. 15 - Prob. 62RQCh. 15 - Prob. 63RQCh. 15 - Attractive properties for casting alloys include...Ch. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Select two of the methods used to produce and hold...Ch. 15 - Prob. 7PCh. 15 - Discuss the various features that this component...Ch. 15 - Prob. 3CSCh. 15 - Prob. 4CSCh. 15 - Prob. 5CSCh. 15 - Prob. 6CS
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- 2.1 What is the benefit of using investment casting for the production of a turbine rotorcompared to other casting processes?2.2 Which AM materials and processes (according to the ISO/ASTM 52900 standard) ismostly used during the manufacturing of patterns for the investment casting process?List the advantages and disadvantages of each of the AM processes.2.3 What are the advantages and disadvantages of using AM techniques to producepatterns for the investment casting process, compared to conventional methods?2.4 Show with a sketch, how the build orientation of the processes listed in Question 2.2can have an influence on the accuracy and surface quality of a pattern.2.5 Which manufacturing process (listed in Question 2.2) will be most suitable to producea pattern for the turbine rotor? Provide reasons for your selection.2.6 The use of additive manufactured patterns for the investment casting process arebeing used more frequently in industry. Using this technology, comment onproduction…arrow_forwardWhat are the products that can be produced by the shell casting method and how are they produced?arrow_forwardWhy are aluminum and copper alloys unsuitable for use in hot chamber die castingarrow_forward
- What are some things to take into consideration when injection-molding long, thin parts?arrow_forwardA vertical true centrifugal casting process is used to produce bushings that are 200 mm long and 200 mm in outside diameter. If the rotational speed during solidification is 500 rev/min, determine the inside diameter at the top of the bushing if the inside diameter at the bottom is 150 mm? Ans. Dt = 167.98 mm.arrow_forwardWhich casting process is the most important commercially?arrow_forward
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