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 24RQ
To determine
Materials for hot chamber die casting machine.
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Why the chills are used in moulds in casting?
where are the die cores placed in die casting?
3) What are the means of elastic and plastic deformations?
List the passageway (gating system) elements in sand casting moulds and show
them with drawing?
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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- Question 3 3.1 Briefly explain the Casting and Molding processes and define their basic requirements. 3.2 If a manufacturer was asked to produce a set of plastic bottles, which method would you suggest? Justify your answer. 3.3 What is the Forging process? Explain the process including two forged products. 3.4 Briefly explain the heat treatment processing techniques using a phase diagram.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_forwardWhy are aluminum and copper alloys unsuitable for use in hot chamber die castingarrow_forward
- Why the Lead is used in medical devices such as x-ray apparatus? Why the actual size and shape of the cavity must be slightly oversized the product? Why Venting holes and passageways must be built in die casting and not in sand casting?arrow_forward2. 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_forwardDiscuss when might low quantities be justified for the die-casting process?arrow_forward
- Which of these factors causes more porosity to form toward the interior of a casting rather than toward the outside? (a) Gasses are less soluble in the solid metal than the liquid, so solidified areas push dissolved gasses toward the interior. (b) Casting under a vacuum causes gasses near the liquid metal surface to be drawn out of the liquid during solidification. (c) The feeding structures of the mold are designed to force entrapped air into the center of the casting. (d) Draft on the mold wall forces air bubbles toward the interior of the solidifying metal. (e) None of the above Non-eutectic alloys (most commercial alloys) solidify over a temperature range. Which of the following statements explains how this affects the casting process. (a) Solidified non-eutectic alloys are especially difficult to remove from metal dies (b) Non-eutectic alloys have significantly less fluidity than pure metals or eutectic alloys. (c) Non-eutectic alloys solidify starting from the outside of the…arrow_forwarda) What is "Strip Casting" one of the casting methods? b) Which parameters affect strip thickness in strip casting? Write 4 parameters and list them. c) In the alumina based substrate shaped by strip casting, it is seen that the cast parts are quite fragile. What parameters do you intervene in order to increase the flexibility of the casting piece? (2 parameters) Explain the reasons. (2 Reasons)arrow_forwardWhat are the materials that can be produced by the shell casting method and how are they produced?arrow_forward
- What are some of the materials used to make casting patterns and their advantages and disadvantages no less than 3arrow_forwardi need the answer quicklyarrow_forwardEX.3//A cylindrical riser must be designed for a sand-casting mold. The casting itself is a steel rectangular plate with dimensions 7.5 cm x 12.5 cm x 2.0 cm. Previous observations have indicated that the total solidification time (TTs) for this casting =1.6 min. The cylinder for the riser will have a diameter-to-height ratio=1.0. Determine the dimensions of the riser so that its TTS = 2.0 min.arrow_forward
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