Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 1, Problem 41QTP
To determine
The ball of a ballpoint pen is
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Check out a sample textbook solutionStudents have asked these similar questions
If 32 grains per square inch are measured at a
magnification of 800x in a hypothetical metal's
micrograph,
Determine the ASTM grain size
number.
Round-off to the nearest whole number.
How many grains would there be per
square inch if the magnification is
200x?
Round-off to the nearest whole number.
5.Fill in the blank with the following:
[grain boundary, dislocation, coarse, stronger]
A fine-grained material (one that has small grains) is harder and
that is
than one
-grained, because the former has a greater total
movement.
area to impede
cimer
Please show all the work.
Material science question, Don't use chatgpt for this question.
Chapter 1 Solutions
Manufacturing Engineering & Technology
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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- The effect of temperature on the crystallization of a material is given below. Calculate the transformation rate (min-1) at 130°C . Round your result to 2 decimal place.arrow_forwardYou work as an engineer in a glass manufacturing plant. During that day's shift, you noticed that the defect in melting glass (Fig.1). What could be the reason for this ? (give three reasons). Which precations would you take to solve this problem ? Please write down three precations, and explain in detail ?arrow_forwardb- An ASTM grain size determination is being made from a photomicrograph of a metal which has a magnification of 500X. What is the ASTM grain size number of the metal if there are 64 grains per square inch?arrow_forward
- The fine grains have lower toughness than coarse grains. Select one: True Falsearrow_forwardtwo cylinders are printed on a 3d printer, with a setting of 40% fill rate. This means that the solid parts of the cylinders at 40% plastic material. Given this, tell me how much plastic material is used to make each of these cylinders. I measured both cylinders in meters and these are the measurements below A) Cylinder 1- Height: 0.042m Radius 2(outer radius): 0.008m Radius 1(inner radius): 0.006m B) Cylinder 2 Height: 0.022m Radius 2(outer radius): 0.008m Radius 1(inner radius): 0.006marrow_forwardDetermine the ASTM grain size number of a metal specimen if 25 grains per square inch are measured at a magnification of 100x Solution please. Thankyouarrow_forward
- Assume that 16 grains per square inch are counted in a micrograph taken at 250X.What is the ASTM number for grain size?arrow_forwardPlease explain how to to get answer.arrow_forwardStrength of metals and their alloys increases as grain size decreases. Find out the amount of increase in strength if total area of grain boundaries doublesarrow_forward
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