Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 4, Problem 21QLP
To determine
So far as engineering applications of metals are concerned distinguish between the case hardening and through hardening.
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(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
What is the advantage of nitriding? Select all correct answers.
Some complex components can be nitride without difficulty.
Better wear resistance.
Better fatigue resistance.
The cheapest method of case hardening.
What is the correct definition of plastic deformation?
The behavior of a material when its size changes by the addition of heat.
The behavior of a material that deforms under load and returns to its original shape when the load is removed.
Deformation caused by cleavage, where the material is actually pulled apart across atomic planes within the crystals or along the grain boundaries.
The behavior of a material that deforms under load and does not fully return to its original shape when the load is removed.
This is a True or false question that has been bothersome please help
Chapter 4 Solutions
Manufacturing Engineering & Technology
Ch. 4 - Describe the difference between a solute and a...Ch. 4 - What is a solid solution?Ch. 4 - Prob. 3RQCh. 4 - Describe the difference between a single-phase and...Ch. 4 - What is an induction heater? What kind of part...Ch. 4 - Describe the major features of a phase diagram.Ch. 4 - What do the terms equilibrium and constitutional,...Ch. 4 - Prob. 8RQCh. 4 - What is tempering? Why is it performed?Ch. 4 - Explain what is meant by severity of quenching.
Ch. 4 - What are precipitates? Why are they significant in...Ch. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - You may have seen some technical literature on...Ch. 4 - Prob. 17QLPCh. 4 - What is the difference between hardness and...Ch. 4 - Prob. 19QLPCh. 4 - Prob. 20QLPCh. 4 - Prob. 21QLPCh. 4 - Describe the characteristics of (a) an alloy, (b)...Ch. 4 - Explain why carbon, among all elements, is so...Ch. 4 - Prob. 24QLPCh. 4 - In Section 4.8.2, several fluids are listed in...Ch. 4 - Why is it important to know the characteristics of...Ch. 4 - Explain why, in the abscissa of Fig. 4.16c, the...Ch. 4 - Prob. 28QLPCh. 4 - Prob. 29QLPCh. 4 - Prob. 30QLPCh. 4 - Design a heat-treating cycle for carbon steel,...Ch. 4 - Using Fig. 4.4, estimate the following quantities...Ch. 4 - Prob. 33QTPCh. 4 - Prob. 34QTPCh. 4 - Prob. 35SDPCh. 4 - Figure 4.18b shows hardness distributions in...Ch. 4 - Throughout this chapter, you have seen specific...Ch. 4 - Refer to Fig. 4.24, and think of a variety of...Ch. 4 - Inspect various parts in your car or home, and...
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- The tensile strength for cold-rolled magnesium alloy AZ31B plate is approximately 160 MPa for specimens tested either parallel or perpendicular to the rolling direction. When similarly oriented specimens are compressed, the yield strength is only 90 MPa. Why? (Hint: Consider the possible deformation mechanisms available in the magnesium alloy and any crystallographic texture that might exist in the wrought plate.)arrow_forwardA 20 foot long x 4 feet wide x ½ inch thick sheet of an aluminum alloy is cold rolled to a thickness of ¼ inch. During the rolling operation the with of the sheet increases by 10%. The strength coefficient (K) and the strain hardening coefficient (n ) for the aluminum alloy are 25,500 psi and 0.3, respectively. Calculate the length of the sheet after the rolling operation in feet.arrow_forwardWhen a 3000 kg load is applied to a 10-mm-diameter ball in a Brinell test of a steel,an indentation of 3.1 mm diameter is produced.Estimate the tensile strength of the steel?arrow_forward
- Explain the concept and procedures involved in a case hardening process of a low carbon steel and provide an example of the application of this technique to solving engineering problemsarrow_forwardA sheet of aluminium alloy is reduced in thickness by 25% following a rolling operation. Tensile test specimens were cut from the sheet before and after rolling. Sketch the tensile test curves for both specimens, making reference to the differences if any, in Young’s modulus, the elastic limit and the level of ductilityarrow_forward1. Briefly explain the difference between hardness and hardenability.arrow_forward
- List the four types of loads (or stresses) involved in the forming of metalsarrow_forwardThere are three temperature ranges in metal forming, cold working, warm working andhot working. Distinguish cold working from warm working including their advantages anddisadvantagesarrow_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_forward
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Material Properties 101; Author: Real Engineering;https://www.youtube.com/watch?v=BHZALtqAjeM;License: Standard YouTube License, CC-BY