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 54RQ
To determine
The reason of extracting metal from the bottom of pouring ladle and not from top.
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2. Define mould.
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 time
Question 2
Blitz Precision Engineering Ltd manufactures moulds for injection moulding machines. The
moulds are made from hardened tool steel due to its high wear and abrasion resistant
properties. When hardened, it will offer a hardness in the range 55-62 HRC, however it is
machinable in the annealed condition. The first step to machine one of the components of a
particular mould involves a milling operation. Specifically, this consists of a face milling
operation which is performed on the top surface of a rectangular tool steel workpiece which
is 315 mm long, 70 mm wide and 30 mm thick.
To mill this component, the machinist has decided to:
use a cemented carbide tool that has 5 teeth and a diameter of 80 mm.
set up the machine and workpiece so that the cutter follows a path that is centred
over the workpiece with a roughing depth of cut value of 4 mm.
In addition, to select the relevant processing parameters, the machinist has to refer to the
relevant data provided in a handbook by…
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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- Please help me with this question ?arrow_forwardWhat is the advantage in casting turbine blades that have either highly aligned grain boundaries or no grain boundaries at all?arrow_forwardIDENTIFICATION: ___________1. It is also known as roll forming. ___________2. It is the most common cold extrusion process. ___________3. This process is the most rapid method of converting large sections into desired shapes. ___________4. This method is uses for production of hollow castings without the use of cores. ___________5. A die is usually made in two halves, What is the movable half called?arrow_forward
- 2. State one casting defect associated with excess moisture content in the mould. 3. State two reasons why moisture is required in moulding sand 4. Knust steel foundry shop is to formulate a moulding sand containing sand, clay and water only, in the sand to clay fraction of and respectively. If the sand obtained is dry but the clay is moist with moisture content of 15%, how much water should be added to formulate 850g moulding sand?arrow_forwardin the diagram below, which one of the temperatures cannot be used for hot metal forming?arrow_forwardg) .................. is used in the production of very indented-protruding parts by forging in closed molds.h) It is .................. which ensures higher strength of bolts produced by rolling.arrow_forward
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