DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 37, Problem 5RQ
To determine
The most significant term in providing heat, based on the heat input equation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Q#01: Define the following:
a) Steady and Transient state of heat transfer by the help of an example.
b) If the area, thickness and temperatures are same across the material. Justify which
material will transfer more heat, either the material with high thermal conductivity value
or the material with low thermal conductivity value?
c) If the area and temperatures are same across the material. Explain whether thermal
conductivity will have any effect on thickness or not?
Page < 7
Given: An electrical device is insulated on all sides.
except for one face. The face is bonded to a 4 mm-thick
aluminum plate, which is cooled by air.
heat sink
→ Cross-Sectional area = Im
→ Electrical device dissipates heat at 104 W/m².
→ The resistance of the joint between the device
and the aluminum plate is 05x10²4 mok/w.
→ The thermal conductivity of aluminum ts 238 Works.
→ Too of air 3 278 k and the convective heat
transfer coefficient between aluminum and
100 W/m.k.
air
What is the temperature at the device surface?
0" = 10² W/m²*
A=1m²
Ts=?
Q Search
L= 4mm
= aoot m
k=238 W/mK
q=0
Too = 278 k
h = 100 W/m²
Thermal Contact
resistance R = 0.5x10 m² K/W.
99+
what happens when w/wn > than sqrt(2)? what happens to the damping and why did it switch, like the lower the damping the lower the vibrations? What does the magnitude directly impact?
Chapter 37 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 37 - What are the two primary functions of the...Ch. 37 - What are the two major roles of the applied...Ch. 37 - Why might resistance welding be considered a form...Ch. 37 - Why is there no need for fluxes or shielding gases...Ch. 37 - Prob. 5RQCh. 37 - What are the three components that contribute to...Ch. 37 - What measures can be taken to reduce the...Ch. 37 - What factors control the resistance between the...Ch. 37 - What are the possible consequences of too little...Ch. 37 - What is the ideal sequence for pressure...
Ch. 37 - Why do the resistance-welding conditions become...Ch. 37 - What magnitude of current might be required to...Ch. 37 - What are some of the changes that can occur in...Ch. 37 - What is the simplest and most widely used form of...Ch. 37 - What is the typical size of a spot-weld nugget?Ch. 37 - What are the two basic types of stationary...Ch. 37 - What is the major advantage of spot-welding guns?Ch. 37 - What are the pros and cons of a resistance spot...Ch. 37 - What are some of the properties that must be...Ch. 37 - What is the most common metal that is spot welded?Ch. 37 - What is the practical limit of the thicknesses of...Ch. 37 - What design features can be altered to permit the...Ch. 37 - What are the two methods used to produce...Ch. 37 - For what products would resistance butt welding be...Ch. 37 - What two limitations of spot welding can be...Ch. 37 - What limits the number of projection welds that...Ch. 37 - What are some of the attractive features of...Ch. 37 - What are some of the primary limitations to the...Ch. 37 - What type of metallurgical problem might be...Ch. 37 - What were some of the limitations that made the...Ch. 37 - What features promote coalescence in cold welding?Ch. 37 - Describe how the roll-bonding process can be used...Ch. 37 - Describe the friction welding process.Ch. 37 - How is inertia welding similar to friction...Ch. 37 - How are surface impurities removed in the...Ch. 37 - Why are inertia welds of more consistent quality...Ch. 37 - What are some of the geometric limitations of...Ch. 37 - How does linear friction welding differ from...Ch. 37 - How does friction-stir welding differ from...Ch. 37 - What are the primary process variables in...Ch. 37 - What are some of the attractive features of...Ch. 37 - What are some of the materials that have been...Ch. 37 - What is the benefit of adding a preheat laser to...Ch. 37 - Describe the friction-stir spot welding process.Ch. 37 - Prob. 45RQCh. 37 - How do ultrasonic vibrations produce a weld?Ch. 37 - What are some of the geometric limitations of...Ch. 37 - What are some of the attractive features of...Ch. 37 - What are the conditions necessary to produce...Ch. 37 - What kinds of materials can be joined by diffusion...Ch. 37 - How might intermediate layers be used to enhance...Ch. 37 - How are surface contaminants removed during...Ch. 37 - If the interface of a weld is viewed in cross...Ch. 37 - What are some typical applications of explosive...Ch. 37 - Many advanced engineering products, as well as...Ch. 37 - Using the Internet or technical literature,...Ch. 37 - Friction-stir processing is an interesting...Ch. 37 - Investigate the various types of power supplies...Ch. 37 - Consider a muffler being made entirely from...Ch. 37 - Prob. 2CSCh. 37 - Prob. 3CSCh. 37 - An alternate material might be one-side...Ch. 37 - Prob. 5CS
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Which statement/s is/are true about deformation? A All the choices В The action or process of changing in shape or distorting through the application of pressure (c) It is only defined by elastic deformation It is the ability of the material to store energyarrow_forwardneed both or dont doarrow_forwardWhat is the tolerance zone (and Material Boundary) for a non-cylindrical feature such as a slot or groove?arrow_forward
- T1 and T2 in brass rod in thermal conductivity test are located in direction that Select one: a. T2 on the heating side and T1 on the cooling side b. T1 and T2 are both on the cooling side c. T1 and T2 are both on the heating side d. T1 on the heating side and T2 on the cooling sidearrow_forward3. What do zeros in the stiffness matrix indicate?arrow_forward6- Discussion: 1. Sketch a diagram for the experimental instrumentation, devices. 2. State any possible error source in the experiment. 3. State any suggestions to improve the experiment or another way the estimate the specific heat of solid materials. 4. Compare the exact value with that obtained experimentally. alaa Hameed Faisal Page (2/2)arrow_forward
- An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J). It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).arrow_forwardIf temperature difference is doubled whereas thermal conductivity and wall thickness are halved, what will be change in heat conducted through wall?arrow_forwardMECT361 Mechatronics Components and Instrumentation Please solve the problem in keupord 0.Consider the Material Selection Design Problem for the FRAME of a Human Powered Road Vehicle. Define the selection criteria, assign weights (importance), and evaluate the following alternatives based on COST, WEIGHT, STRENGTH, AVAILABILITY, MANUFACTURABILITY, ASSEMBLY, TEST & MAINTENANCE, ENVIRONMENT & SUSTAINABILITY, SAFETY & RELIABILITY: a.Steel b.Aluminum c. Titanium d.Composite- CFRParrow_forward
- Describe the temperature scales used in the SI in present time?arrow_forwardWhat is the difference(s) between endurance limit and endurance strength? Usesketch and make the necessary assumptions.arrow_forwardSelect All the correct statements from below. a. If the averaged distance between partial dislocations for material A observed under TEM is smaller than material B, the estimated stacking fault energy of material A is lower than material B. b. K_IC is a material property that doesn't change with testing conditions c. The main difference between high cycle fatigue and low cycle fatigue is the difference in the number of cycles to failure d. A negative R value in fatigue test indicate the minimum stress is compressive in naturearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage LearningWelding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage LearningPrinciples of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
Welding: Principles and Applications (MindTap Cou...
Mechanical Engineering
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Understanding Conduction and the Heat Equation; Author: The Efficient Engineer;https://www.youtube.com/watch?v=6jQsLAqrZGQ;License: Standard youtube license