EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 34QLP
Is it possible to cold work a metal at temperatures above the boiling point of water? Explain.
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Explain the reason for the quenching cracking that may occur when hardening some parts. Describe the alternative methods applied to prevent this situation by showing them on a single figure.
out of
(a). Briefly explain THREE (3) sources of internal residual stresses in metal components and state the consequences of these stresses.
Huraikan secara ringkas TIGA (3) sumber tegasan baki dalaman di dalam komponen logam dan nyatakan akibat tegasan tersebut
(b). Describe with the aid of an illustration, heat treatment procedures for steels and state the intended final microstructure.
Dengan bantuan gambar rajah, huraikan tatacara rawatan boba untuk keluli yang berikut serta nyatakan mikrostruktur akhir yang dikehendaki.
().
Full annealing
Penyepuhlindapan penuh
(i). Normalizing
Penormalan
(ii). Tempering
Pembajaan
After a machinist quickly slips a hot, snugly fitting iron ring over a very cold brass cylinder, the two cannot be separated intact. Can you explain why this is so?
Chapter 1 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 1 - What is the difference between an atom and a...Ch. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Define anisotropy. What is its significance?Ch. 1 - What effects does recrystallization have on the...Ch. 1 - What is strain hardening, and what effects does it...Ch. 1 - Explain what is meant by structure-sensitive and...Ch. 1 - Prob. 9RQCh. 1 - What influence does grain size have on the...
Ch. 1 - What is the relationship between the nucleation...Ch. 1 - What is a slip system, and what is its...Ch. 1 - Explain the difference between recovery and...Ch. 1 - What is hot shortness, and what is its...Ch. 1 - Explain the advantages and limitations of cold,...Ch. 1 - Describe what the orange peel effect is. Explain...Ch. 1 - Some metals, such as lead, do not become stronger...Ch. 1 - Describe the difference between preferred...Ch. 1 - Differentiate between stress relaxation and stress...Ch. 1 - What is twinning? How does it differ from slip?Ch. 1 - Prob. 21QLPCh. 1 - What is the significance of the fact that some...Ch. 1 - Is it possible for two pieces of the same metal to...Ch. 1 - Prob. 24QLPCh. 1 - A cold-worked piece of metal has been...Ch. 1 - What materials and structures can you think of...Ch. 1 - Two parts have been made of the same material, but...Ch. 1 - Do you think it might be important to know whether...Ch. 1 - Explain why the strength of a polycrystalline...Ch. 1 - Describe the technique you would use to reduce the...Ch. 1 - What is the significance of the fact that such...Ch. 1 - Prob. 32QLPCh. 1 - It has been noted that the more a metal has been...Ch. 1 - Is it possible to cold work a metal at...Ch. 1 - Comment on your observations regarding Fig. 1.14.Ch. 1 - Is it possible for a metal to be completely...Ch. 1 - Prob. 37QTPCh. 1 - Prob. 38QTPCh. 1 - Plot the data given in Table 1.1 in terms of...Ch. 1 - A strip of metal is reduced from 30 mm in...Ch. 1 - Prob. 41QTPCh. 1 - How many grains are there on the surface of the...Ch. 1 - Prob. 43QTPCh. 1 - Prob. 44QTPCh. 1 - Prob. 45QTPCh. 1 - A technician determines that the grain size of a...Ch. 1 - If the diameter of the aluminum atom is 0.28 nm,...Ch. 1 - The following data are obtained in tension tests...Ch. 1 - Prob. 50QTPCh. 1 - Prob. 51QTPCh. 1 - Prob. 52QTPCh. 1 - Same as Prob. 1.39, but ASTM no. versus...Ch. 1 - By stretching a thin strip of polished metal, as...Ch. 1 - Draw some analogies to mechanical fiberingfor...Ch. 1 - Draw some analogies to the phenomenon of hot...Ch. 1 - Take a deck of playing cards, place a rubber band...Ch. 1 - Give examples in which anisotropy is scale...Ch. 1 - The movement of an edge dislocation was described...
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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
- The basics of strain hardening should be explained. Is this method still effective at high temperatures? explainarrow_forwardPlease solvearrow_forward1. Explain in 1-3 bullets how as a practicing engineer you determine the yield strength of a metal from a tensile stress-strain curve. 2. Explain what is happening at the yield strength for a metal from a physical standpoint in 1-3 bullets. (e.g. what are the atoms doing?)arrow_forward
- (3) Metals tend to expand when heated and contract when cooled. If a clock has a pendulum made of a bob attached to the end of a metal rod (as opposed to the string we used in our lab), completely describe the effect that temperature would have on the accuracy of the clock (i.e., would the clock run too fast or too slow) and why? karrow_forwardExplain how do the cold work processes, such as extrusion or rolling, increase the strength of the single-phase metals? Mention the underlying mechanism in detailsarrow_forwardIt's important to explain the fundamentals of strain hardening. Is this technique still reliable in hot conditions? Explainarrow_forward
- When the metal is cooled in a molten state, a grain boundary is generated. Figure out the process of forming a grain boundary, and explain the characteristics of the grain boundary and its effect on electrical/thermal properties.arrow_forwardDescribe in your own words the three strengthening mechanisms discussed in this chapter (i.e., grain size reduction, solid-solution strengthening, and strain hardening). Be sure to explain how dislocations are involved in each of the strengthening techniques.arrow_forwardWhy does the work hardening of metals occur? (one sentence only).arrow_forward
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