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 14, Problem 45RQ
To determine
Features that justify the higher cost of no-bake sands and make it more attractive than sodium silicate CO2.
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12.Silica sand has which one of the following compositions: (a) A12O3,
(b) SiO, (c) SiO2, or (d) SISO4?
13.A misrun is which one of the following defects in casting: (a)
globules of metal becoming entrapped in the casting, (b) metal is not
properly poured into the downsprue, (c) metal solidifies before
filling the cavity, (d) microporosity, and (e) "pipe" formation?
2. Briefly state the importance of sand testing
3. Describe explain the term Green moulding sand
4. Beside silica sands, what other types of sands are used in foundry? Briefly describe them.
5. Name the various additives used in moulding sand and explain how they affect its
properties
6. Differentiate between binding and non-binding additives
7. Name the different types of clay used in the foundry industry
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C- What is the other compatibility characteristics that may be important in the function of an
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D- What are some of the factors that affect the fluidity of a molten metal during pouring into a
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Chapter 14 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 14 - What are some of the factors that influence the...Ch. 14 - What are the three basic categories of casting...Ch. 14 - What metals are frequently cast into products?Ch. 14 - What features combine to make cast iron and...Ch. 14 - Which type of casting is the most common and most...Ch. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - What is the simplest and least expensive type of...Ch. 14 - What is a match plate, and how does it aid...Ch. 14 - How is a cope-and-drag pattern different from a...
Ch. 14 - Prob. 11RQCh. 14 - Prob. 12RQCh. 14 - For what types of products might a loose-piece...Ch. 14 - What are the four primary requirements of molding...Ch. 14 - Prob. 15RQCh. 14 - Prob. 16RQCh. 14 - What is a muller, and what function does it...Ch. 14 - Prob. 18RQCh. 14 - What is a standard rammed specimen for evaluating...Ch. 14 - What is permeability, and why is it important in...Ch. 14 - How does the ratio of water to clay affect the...Ch. 14 - How is the hardness of molding sand determined?Ch. 14 - Prob. 23RQCh. 14 - How does the size and shape of the sand grains...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - Prob. 28RQCh. 14 - Prob. 29RQCh. 14 - Prob. 30RQCh. 14 - What are hot tears, and what can cause them to...Ch. 14 - When might hand ramming be the preferred method of...Ch. 14 - Prob. 33RQCh. 14 - Prob. 34RQCh. 14 - Prob. 35RQCh. 14 - Prob. 36RQCh. 14 - What is stack molding?Ch. 14 - Prob. 38RQCh. 14 - What are the components of green sand?Ch. 14 - Prob. 40RQCh. 14 - Prob. 41RQCh. 14 - Prob. 42RQCh. 14 - What are some of the advantages and limitations of...Ch. 14 - Prob. 44RQCh. 14 - Prob. 45RQCh. 14 - Prob. 46RQCh. 14 - Prob. 47RQCh. 14 - Prob. 48RQCh. 14 - Prob. 49RQCh. 14 - Why do shell molds have excellent permeability and...Ch. 14 - Prob. 51RQCh. 14 - Prob. 52RQCh. 14 - Prob. 53RQCh. 14 - Prob. 54RQCh. 14 - Prob. 55RQCh. 14 - What is the sand binder in the core-oil process,...Ch. 14 - What is the binder in the hot-box core-making...Ch. 14 - What is the primary attraction of the cold-box...Ch. 14 - What is shelf life? How is it different from bench...Ch. 14 - Prob. 60RQCh. 14 - Prob. 61RQCh. 14 - Prob. 62RQCh. 14 - Prob. 63RQCh. 14 - Prob. 64RQCh. 14 - Prob. 65RQCh. 14 - Why are plaster molds only suitable for the...Ch. 14 - How does the Antioch process provide permeability...Ch. 14 - What is the primary performance difference between...Ch. 14 - Prob. 69RQCh. 14 - Prob. 70RQCh. 14 - Prob. 71RQCh. 14 - Describe the progressive construction of an...Ch. 14 - Why are investment casting molds generally...Ch. 14 - Prob. 74RQCh. 14 - What are some of the attractive features of...Ch. 14 - What recent development has made one-of-a-kind or...Ch. 14 - Prob. 77RQCh. 14 - Prob. 78RQCh. 14 - What are some of the benefits of not having to...Ch. 14 - What are some of the ways by which expanded...Ch. 14 - Prob. 81RQCh. 14 - Prob. 82RQCh. 14 - Prob. 83RQCh. 14 - Prob. 84RQCh. 14 - Prob. 85RQCh. 14 - Prob. 86RQCh. 14 - What are the most common single-use mold...Ch. 14 - What are the most common methods of core...Ch. 14 - Although cores increase the cost of castings, they...Ch. 14 - Several of the additive manufacturing processes...Ch. 14 - Additive manufacturing processes can also build...Ch. 14 - Cast iron cookware can offer a number of...Ch. 14 - Figure CS-14 shows the hitch ball component of a...Ch. 14 - Prob. 2.1CSCh. 14 - Prob. 2.2CSCh. 14 - Prob. 2.3CS
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 7. What are the basic requirements of core sand? How does it differ from the moulding sand?arrow_forward4. Beside silica sands, what other types of sands are used in foundry? Briefly describe them. 5. Name the various additives used in moulding sand and explain how they affect its properties 6. Differentiate between binding and non-binding additives 7. Name the different types of clay used in the foundry industryarrow_forwardWhat are "no-bake" molds, and how do they compare to green sand molds? a) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with resins that do not need heat in order to cure. The result is a mold that can maintain better dimensional control over high production volume. b) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with fine wood chips. They are then compressed with high pressure without baking. c) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with dry clay that do not need heat in order to cure. The result is a mold that doesn't require and baking. d) "No Bake" molds is the same as the tradition clay-and-water but used in high production volume.arrow_forward
- Describe the following two important sand casting defects. (i) Misrun (ii) Pin Holesarrow_forward1.What is the benefit of using investment casting for the production of a turbine rotor compared to other casting processes? 2.What are the advantages and disadvantages of using Additive Manufacturing techniques to produce patterns for the investment casting process, compared to conventional methods? 3.Which Additive Manufacturing materials and processes (according to the ISO/ASTM 52900 standard) is mostly used during the manufacturing of patterns for the investment casting process?List the advantages and disadvantages of each of the AM processes.arrow_forwardBaking of sand mold increases its strength. Select one: True Falsearrow_forward
- 2. What do the various elements that comprise the gating system? what are the pouring 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 How do the patterns differ from the casting required? 6. Define Expendable-mold, Expendable-pattern Casting Processesarrow_forwardنقطة واحدة The third sequence in the Injection machine of polymers, a shot of melt, which has been brought to the right temperature and viscosity by heating and the mechanical working of the screw, is injected under high pressure into the mold .cavity TO FO * Coppola is used to convert pig iron to gray .cast iron TO F LLarrow_forwardلانقطة واحدة of Warm working The advantages over cold working are: 1) forces and power are higher,2) more intricate work geometries possible, and 3) need for annealing may be reduced .or eliminated T F Blow molding is an important industrial process for making one- piece hollow plastic parts with thick .walls T Sly The sequence of the Blow Molding is automated and often integrated with downstream operations such .as bottle filling and labeling T لنقطة واحدةarrow_forward
- What are the materials that can be produced by the shell casting method and how are they produced?arrow_forwardBiomaterial question: Give a brief and clear answer, please do not write by hand Question: Compare and contrast casting methods for metals, ceramics, and polymers. Also compare the effect of cooling rate (quenching) between metals and polymers.arrow_forward2.1 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_forward
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