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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Textbook Question
Chapter 14, Problem 21RQ
How does the ratio of water to clay affect the compressive strength of green sand? What is a good starting point ratio?
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7.
What are the basic requirements of core sand? How does it differ from the
moulding sand?
QUESTIONS
1- Describe with net sketch: a. Pattern b. Riser c. Runners d. Core
2- Compare between open mold and closed mold.
3-Explain the main Procedures of Sand Casting.
4 - What are the important properties which are essential in good molding sand?
Explain in details.
5- Mention advantages and disadvantages of casting.
6- Describe types of sand mold.
7- What are the common binders of sand mold and cores?
8- Describe Desirable Mold Properties.
9- Explain two types of patterns and two pattern allowances
10- Describe with sketches shell process casting (i) Composition of sand mixture (ii)
Steps in molding (iii) Advantages (iv) Limitations and (v) Applications
11- Explain with Sketch the construction and operation of a hot chamber die casting
machine.
12- Compare between hot chamber die casting and hot chamber die casting.
13- What is meant of investment casting? What are the main materials used for
making the investment pattern.
14- Describe various kinds of patterns in use.
15- Why…
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?
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
- Manufacturing Processes How to perform the sand casting of hollow piece and how to verify the calculated solidification time?arrow_forwardDescribe the following two important sand casting defects. (i) Misrun (ii) Pin Holesarrow_forwardWhat are some of the operations required of sand castings after removal from the moldarrow_forward
- In sand moulding and casting process, which of the following is the purpose of a chill? a. To increase the rate of heat extraction from the casting b. To reduce the possibility of blow holes O c. To increase the surface finishing of the casting d. To decrease the solidification timearrow_forwardQ1.Write down your answer briefly. i) Why is the permeability of shell mold higher as compared to sand mold? ii)What type of die casting process is mostly preferable for higher production rate? Justify your answer. iii) Bauschinger effect can be reduced by the stress aging process. Justify your answer. iv) Why is the sand for foundry practice called green sand? Can it be used for the core making process? v) What is moldability? How do you determine moldability of molding sand? vi) Which casting process is usually preferred for producing long tubular objects? Is it possible to manufacture a solid and parallelepiped object having different dimensions in a centrifugal casting process? Justify your answer. vii) What is directional solidification? How does a riser promote directional solidification?arrow_forwardno hurry ............. a very good handwriting with every step to be mentioned to understand the answer easily step to follow given requirement solution result if not followed the above steps , ready for consequences i want the solution with a very good handwritingarrow_forward
- 3. (Slow or Fast, which one? – Circle one) cooling rates results in coarse dendritic structures. 4. The higher the viscosity of the melt, the . its fluidity? 5. Name 3 defects in casting: 6. Internal or external are an effective means of reducing shrinkage porosity during solidification. 7. Is green-sand molding expensive? 8. .... are inserts placed in the molds to form the hollow regions in casting. 9. The method of casting turbine blades: Sample A 10. Which one has higher stiffness? Sample A or Sample B Sample B 11. Which one has higher toughness? Sample A or Sample B 12. Which one has higher strength? Sample A or Sample B 13. Which one has higher ductility? Sample A or Sample 14. Higher ......... means more rigidity. Strain 15. Before the no-slip point, the velocity is (higher or lower, which one? - Circle one) 16. In flat-rolling process, using smaller diameter rolls (increases or decreases, which one? - Circle one) the roll force. 17. Balls for ball bearings can be made by rolling…arrow_forward4) List the passageway (gating system) elements in sand casting moulds and show them with drawing? Draw the stress-strain curve and gives the stress and strain equations for both Engineering and True stress-strainarrow_forwardrequirement : a good understandable handwriting and answer in step by step procedure with good arrangementarrow_forward
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