DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Chapter 14, Problem 11RQ
To determine
Benefits of incorporating gates, runner, and risers onto match plate.
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Problem 3: The inertia matrix can be written in dyadic form which is particularly useful
when inertia information is required in various vector bases. On the next page is a right
rectangular pyramid of total mass m. Note the location of point Q.
(a) Determine the inertia dyadic for the pyramid P, relative to point Q, i.e., 7%, for unit
vectors ₁₁, 2, 3.
Can you solve for v? Also, what is A x u
The external loads on the element shown below at the free end are F = 1.75 kN, P = 9.0
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The tube's outer diameter is 50 mm and the inner diameter is 45 mm.
Given: A(the cross-sectional area) is 3.73 cm², Moment inertial I is 10.55 cm4, and J
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Determine the following.
(1) The critical element(s) of the bar.
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-120 mm-
F
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 - Figure CS-14 shows the hitch ball component of a...
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- Determine the tension developed in cables AB and AC and the force developed along strut AD for equilibrium of the 400-lb crate. x. 5.5 ft C 2 ft Z 2 ft D 6 ft B 4 ft A 2.5 ftarrow_forwardA block of mass m hangs from the end of bar AB that is 7.2 meters long and connected to the wall in the xz plane. The bar is supported at A by a ball joint such that it carries only a compressive force along its axis. The bar is supported at end B by cables BD and BC that connect to the xz plane at points C and D respectively with coordinates given in the figure. Cable BD is elastic and can be modeled as a linear spring with a spring constant k = 400 N/m and unstretched length of 6.34 meters. Determine the mass m, the compressive force in beam AB and the tension force in cable BC. Z D (c, 0, d) C (a, 0, b), A e B y f m BY NC SA x 2016 Eric Davishahl Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 8.1 m b 3.3 m C 2.7 m d 3.9 m e 2 m f 5.4 m The mass of the block is The compressive force in bar AB is The tension in cable S is N. kg.arrow_forwardTwo squirrels are sitting on the rope as shown. The squirrel at A has a weight of 1.2 lb. The squirrel at B found less food this season and has a weight of 0.8 lb. The angles 0 and > are equal to 50° and 60° respectively. Determine the tension force in each of the rope segments (T₁ in segment, T₂ in segment Я, and T3 in segment DD) as well as the angle a in degrees. Ө A α B Note the figure may not be to scale. T₁ = lb lb T2 T3 = = lb απ deg A BY NC SA 2013 Michael Swanbomarrow_forward
- Each cord can sustain a maximum tension of 500 N. Determine the largest mass of pipe that can be supported. B 60° A E Harrow_forward2. Link BD consists of a single bar 1 in. wide and 0.5 in. thick. Knowing that each pin has a in. diameter, determine (a) the maximum value of the normal stress in link BD and the bearing stress in link BD if 0 = 0, (b) the maximum value of the normal stress in link BD if 0 = 90. -6 in.- 12 in. 30° D 4 kipsarrow_forwardIn the image is a right rectangular pyramid of total mass m. Note the location of point Q. Determine the inertia dyadic for the pyramid P, relative to point Q for e hat unit vectors.arrow_forward
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