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 16, Problem 8RQ
To determine
The important characteristics and properties of metal powders used in powder metallurgy.
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Students have asked these similar questions
a) Name the various methods of powder production and the morphology of the powdersproduced.
b) What are some P/M (powder metallurgy) products that have been intentionally designed touse the porosity or permeability features of the process?
QUESTION 1
(a)
Powder Metallurgy (PM) has become competitive with processes such as casting,
forging and machining, particularly for complex parts made of high strength and hard
alloys. Compare the design considerations for products made of powder metallurgy,
casting and forging process. Evaluate your observation.
(b)
Products made of sheet metals can be easily found around us. Identify some of the
products in your automobile which are made from sheet metal, and discuss the process
or combination of processes required to produce such products.
لانقطة 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 واحدة
Chapter 16 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 16 - What type of product would be considered to be a...Ch. 16 - What were some of the earliest powder metallurgy...Ch. 16 - Prob. 3RQCh. 16 - Why might the term particulate processing be a...Ch. 16 - What are some of the primary market areas for P/M...Ch. 16 - Prob. 6RQCh. 16 - What are the four basic steps that are usually...Ch. 16 - Prob. 8RQCh. 16 - Prob. 9RQCh. 16 - Prob. 10RQ
Ch. 16 - Which of the powder manufacturing processes are...Ch. 16 - Why might the powdered material be heat�treated...Ch. 16 - Prob. 13RQCh. 16 - Prob. 14RQCh. 16 - Prob. 15RQCh. 16 - Prob. 16RQCh. 16 - Prob. 17RQCh. 16 - Prob. 18RQCh. 16 - Prob. 19RQCh. 16 - Prob. 20RQCh. 16 - Prob. 21RQCh. 16 - What is the benefit of a removable die set in a...Ch. 16 - What limits the cross�sectional area of most P/M...Ch. 16 - Prob. 24RQCh. 16 - Prob. 25RQCh. 16 - Prob. 26RQCh. 16 - Prob. 27RQCh. 16 - Prob. 28RQCh. 16 - Prob. 29RQCh. 16 - Prob. 30RQCh. 16 - Prob. 31RQCh. 16 - Prob. 32RQCh. 16 - Prob. 33RQCh. 16 - Prob. 34RQCh. 16 - Prob. 35RQCh. 16 - What types of atmospheres are used during...Ch. 16 - Prob. 37RQCh. 16 - What is the purpose of the sinter brazing process?Ch. 16 - Prob. 39RQCh. 16 - Prob. 40RQCh. 16 - Prob. 41RQCh. 16 - Prob. 42RQCh. 16 - Prob. 43RQCh. 16 - What is canning and decanning, and how do these...Ch. 16 - Prob. 45RQCh. 16 - Prob. 46RQCh. 16 - Prob. 47RQCh. 16 - Prob. 48RQCh. 16 - Prob. 49RQCh. 16 - Prob. 50RQCh. 16 - How is the metal powder used in metal injection...Ch. 16 - Prob. 52RQCh. 16 - Prob. 53RQCh. 16 - Prob. 54RQCh. 16 - Prob. 55RQCh. 16 - Prob. 56RQCh. 16 - Prob. 57RQCh. 16 - Prob. 58RQCh. 16 - Prob. 59RQCh. 16 - Prob. 60RQCh. 16 - Prob. 61RQCh. 16 - Prob. 62RQCh. 16 - Prob. 63RQCh. 16 - Prob. 64RQCh. 16 - Prob. 65RQCh. 16 - Prob. 66RQCh. 16 - Prob. 67RQCh. 16 - Give an example of a product where two or more...Ch. 16 - What are the primary assets or advantages of the...Ch. 16 - Prob. 70RQCh. 16 - Prob. 71RQCh. 16 - Prob. 72RQCh. 16 - Prob. 73RQCh. 16 - Prob. 74RQCh. 16 - Prob. 75RQCh. 16 - Prob. 76RQCh. 16 - Prob. 1PCh. 16 - Prob. 2PCh. 16 - Prob. 3PCh. 16 - Prob. 4PCh. 16 - Prob. 5PCh. 16 - Particulate materials can be made by a variety of...Ch. 16 - Prob. 7PCh. 16 - Briefly discuss the properties and characteristics...Ch. 16 - Based on the size, shape, and reasonable precision...Ch. 16 - Prob. 1.8CSCh. 16 - Prob. 1.9CSCh. 16 - Prob. 1.10CSCh. 16 - Prob. 2.1CSCh. 16 - Prob. 2.3CS
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- QUESTION 1 (a) Powder Metallurgy (PM) enables the processing of materials with very high melting points, including refractory metals such as tungsten, molybdenum and tantalum. Such metals are very difficult to produce by melting and casting and are often very brittle in the cast state. As a manufacturing engineer, state and explain at least SIX (6) limitations of powder metallurgy that is not applicable in particular engineering industries. In a case where you were assigned to use powder metallurgy in metal forming, justify at least THREE (3) PM requirements. (b) A coil of sheet metal is placed in a furnace and annealed in order to improve its ductility. Nonetheless, it is found that the sheet metal has a lower limiting drawing (LDR) than it had before the annealing process. Describe the meaning of LDR and explain the reasons for this behaviour by referring to the microstructure and materials' properties point of view for different types of materials. In addition, discuss the process…arrow_forward1) Give some examples of design of powder metallurgical partsarrow_forwardWhat are the practical applications of powder metallurgy components? List at least four items produced by powder metallurgy.arrow_forward
- 3) Should green compacts be brought up to the sintering temperature slowly or rapidly? Explain your reasoning.4) Name the various methods of powder production and the morphology of the powders produced.5) What are some P/M (powder metallurgy) products that have been intentionally designed to use the porosity or permeability features of the process?arrow_forward1) What are the advantages of powder metallurgy? i. Extreme purity product ii. Low labour cost iii. Low equipment cost i, ii & ii i & ii only ii & iii only i & iii onlyarrow_forwardWhat were the main needs to develop colloidal technique for powder processing, explain your arguments clearly?arrow_forward
- Is reconstitution the act of mixing a liquid with a powder to make a liquid form?arrow_forwardAtomization, electrolytic deposition and reduction methods are used to produce metal Powders Select one: True Falsearrow_forward1) How does the ease of tool locating and clamping affects the design efficiency? Give some examples of design of powder metallurgical partsarrow_forward
- 1- List all steps involved in powder metallurgy (P/M) process. 2- Briefly explain each steparrow_forwardFor a powder binding process that mixes a 1:2 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm3 andcrystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous andcrystalline states is 0.870 g/cm3 and 0.998 g/cm3 respectively)(This question has only one correct answer)% Crystallinity = 55.45%% Crystallinity = 65.50%% Crystallinity = 76.99%% Crystallinity = 82.30%% Crystallinity = 57.25%arrow_forwardFor a powder binding process that mixes a 1:2 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm³ and crystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous and crystalline states is 0.870 g/cm³ and 0.998 g/cm³ respectively) (This question has only one correct answer) О а. % Crystallinity = 55.45% O . % Crystallinity = 57.25% О с. % Crystallinity = 76.99% Od. % Crystallinity = 82.30% % Crystallinity = 65.50%arrow_forward
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