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 38, Problem 5RQ
For what types of applications might thermit welding be attractive?
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B
150 mm
120 mm
PROBLEM 15.193
The L-shaped arm BCD rotates about the z axis with a constant
angular velocity @₁ of 5 rad/s. Knowing that the 150-mm-
radius disk rotates about BC with a constant angular velocity
@2 of 4 rad/s, determine (a) the velocity of Point A, (b) the
acceleration of Point A.
Answers:
V₁ =-(0.600 m/s)i + (0.750 m/s)j - (0.600 m/s)k
a=-(6.15 m/s²)i- (3.00 m/s²)j
3
Answer:
002
PROBLEM 15.188
The rotor of an electric motor rotates at the constant rate
@₁ = 1800 rpm. Determine the angular acceleration of the rotor as the
motor is rotated about the y axis with a constant angular velocity 2
x of 6 rpm counterclockwise when viewed from the positive y axis.
α = (118.4 rad/s²)i
12 in..
10 in.
PROBLEM 15.187
At the instant considered the radar antenna shown rotates about
the origin of coordinates with an angular velocity
@ = ai + @j+wk Knowing that (VA) = 15 in./s,
(VB), 9 in./s, and (VB), = 18 in./s, determine (a) the angular
velocity of the antenna, (b) the velocity of point A.
B
10 in.
Answers:
=
(0.600 rad/s)i - (2.00 rad/s) j + (0.750 rad/s)k
V₁ = (20.0 in./s)i + (15.00 in./s) j + (24.0 in./s)k
Chapter 38 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 38 - What are some joining conditions where welding...Ch. 38 - What are some of the lower-temperature methods of...Ch. 38 - In what ways is a thermit weld similar to the...Ch. 38 - What is the source of the welding heat in thermit...Ch. 38 - For what types of applications might thermit...Ch. 38 - What is the source of the welding heat in...Ch. 38 - What are some of the various functions of the slag...Ch. 38 - Electroslag welding would be most attractive for...Ch. 38 - What is the source of heat in electron-beam...Ch. 38 - Why is a high vacuum required in the electron-beam...
Ch. 38 - What types of production limitations are imposed...Ch. 38 - What are the major assets and negative features of...Ch. 38 - What are some of the attractive features of...Ch. 38 - What is unique about the fusion zone geometry of...Ch. 38 - Describe the weld pool geometry and size of the...Ch. 38 - What is an autogenous weld?Ch. 38 - What might be necessary to permit the laser...Ch. 38 - What are some of the Ways in which laser-beam...Ch. 38 - What are the three common types of industrial...Ch. 38 - Which type of laser light can be transmitted...Ch. 38 - What are some of the attractive features of a...Ch. 38 - Why is laser-beam welding an attractive process...Ch. 38 - What are the attractive properties of hybrid...Ch. 38 - Prob. 24RQCh. 38 - What is the function of the assist gas in...Ch. 38 - What is the difference between exothermic cutting...Ch. 38 - Which type of laser is preferred for cutting...Ch. 38 - Prob. 28RQCh. 38 - Prob. 29RQCh. 38 - What features have made lasers a common means of...Ch. 38 - What are some of the attractive features of laser...Ch. 38 - What are some common objectives of surfacing...Ch. 38 - What types of materials are applied by surfacing...Ch. 38 - Prob. 34RQCh. 38 - What is the benefit of high-velocity oxyfuel...Ch. 38 - What are some of the arc or plasma techniques that...Ch. 38 - How is thermal spraying similar to surfacing? How...Ch. 38 - Prob. 38RQCh. 38 - Prob. 39RQCh. 38 - Provide a reasonable definition of brazing?Ch. 38 - What are some key differences between brazing and...Ch. 38 - What kinds of materials or combinations can be...Ch. 38 - What advantages can be gained by the lower...Ch. 38 - Why do brazed joints have an enhanced...Ch. 38 - What is the most important factor influencing the...Ch. 38 - How does capillary action relate to joint...Ch. 38 - Why is it necessary to adjust the initial...Ch. 38 - What is wettability? Fluidity? How do each relate...Ch. 38 - What are the two most common types of brazed...Ch. 38 - How do the butt-lap and scarf joint configurations...Ch. 38 - What are some important considerations when...Ch. 38 - What are some of the most commonly used brazing...Ch. 38 - Why are eutectic alloys attractive as brazing...Ch. 38 - What special measures should be taken when brazing...Ch. 38 - What are the three primary functions of a brazing...Ch. 38 - Why is it important to preclean brazing surfaces...Ch. 38 - How might braze metal be preloaded into joints?Ch. 38 - What is the purpose of brazing jigs and fixtures?Ch. 38 - 59- What are some factors to consider when...Ch. 38 - What are the advantages and disadvantages of torch...Ch. 38 - What is the primary attraction of furnace-brazing...Ch. 38 - Why might reducing atmospheres or a vacuum be...Ch. 38 - What are some of the attractive features of...Ch. 38 - Why is dip brazing usually restricted to use with...Ch. 38 - What are some of the attractive features of...Ch. 38 - Why is flux removal a necessary part of many...Ch. 38 - What benefits can be achieved through fluxless...Ch. 38 - How does braze welding differ from traditional...Ch. 38 - What is the primary difference between brazing and...Ch. 38 - What are the six steps of a soldering operation?Ch. 38 - Why is soldering unattractive if a high-strength...Ch. 38 - For many years, the most common solders have been...Ch. 38 - What is driving the conversion to lead-free...Ch. 38 - What are some of the difficulties encountered when...Ch. 38 - What are the two basic families of soldering flux?Ch. 38 - What are some of the more common heat sources for...Ch. 38 - Why is wave soldering attractive for making the...Ch. 38 - Describe the vapor-phase soldering process.Ch. 38 - A common problem with brazed or soldered joints is...Ch. 38 - When molten metal deposition is applied to a...Ch. 38 - Prob. 3P
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