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 81RQ
To determine
The primary difference between full mold and lost-foam casting.
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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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- 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_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_forwardWhat means product quality ? What characristics does the term product quality include ? 2 - what steps are included in the molding process, list them ?arrow_forward
- Explain in detail different components of a gating system in sand mold castingarrow_forwardIn full mould (cavity-less) casting process, the pattern is made of (A) Expanded polystyrene (B) Wax (C) Epoxy (D) Plaster of Parisarrow_forwardIn 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 mouldarrow_forward
- Sketch a simple part that can be green sand or injection molded. Sketch at least one view of the part. Draw the part in casting orientation. Choose the parting line and label it. Decide if cores are necessary and label them.arrow_forward3. (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_forwardHighlighting the positive pattern making allowances, explain in detail with a neat sketch and labelling the same, the 2-box molding procedure for the following component considering it as a split pattern. Through Hole (a)arrow_forward
- For pouring the part, whose perspective pictures are given below, into sand mold,model design, core design if necessary, all molding steps andFinally, draw the mold in the best way to pour and shape all the mold elements.Name it by pointing on it (Note: The hole shown in the figure is a through hole.)arrow_forward3) What are the means of elastic and plastic deformations? List the passageway (gating system) elements in sand casting moulds and show them with drawing?arrow_forwardCalculate mould dimension for sprue runner and in-gate, the material using fluorothermoplastic and using injection molding. Question: 1. explain the steps for making a mold 2. If possible, use a simulation of the position where the defect will occur 3. Calculate to make mold male and female, the shape is near net shape product and determine material for dies, the liquid materials is 167°C Guidelines Sprue Gate Guidelines L 50% W1 A1 2-3° W1 20- 100% of W2 R1 > 1.5 mm T2 75-100% T1 (part thickness) D1 125-400% T1 (part thickness) D1 100-300% T1 (part thickness) Part Thickness 1.6 mm R > 1 mm (0.040") % Shrinkage Parallel to Flow 4.0-4.5 % Shrinkage Perpendicular to Flow 4.3-4.8 T3 100-200 % (part thickness)arrow_forward
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