FUNDAMENTALS OFMODE RS RS
RN MANUFACTURING:
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MATERIALS, PROCESSES, AND SYSTEMS R S R S R S
Second Edition RS
MIKELL P. GROOVER
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Professor of Industrial and Manufacturing Systems Engineering Lehi
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gh University
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John Wiley & Sons, Inc., New York
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1
,PREFACE
This is the Solutions Manual for the textbook Fundamentals of Modern Manufacturing: M
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aterials, Processes, and Systems (Second Edition). It contains the answers to the Review Que
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stions and Multiple Choice Quizzes at the end of the Chapters 2 through 44, as well as the Probl
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ems at the end of Chapters 3, 4, 6, 10, 11, 13, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30,
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31, 33, 34, 35, 38, 40, 42, and 43. There are approximately 740 review questions, 500 quiz ques
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tions, and 500 problems (nearly all of them quantitative) in the text.
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I have personally answered all of the questions and solved all of the quizzes and problems and h
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ave personally recorded the solutions in this booklet. Many of the problems have been tested in
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class, thus giving me an opportunity to compare my own answers with those developed by the st
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udents. Despite my best efforts to avoid errors in this solutions manual, I am sure that errors are
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present. I would appreciate hearing from those of you who discover these errors, so that I can
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make the necessary corrections in subsequent editions of the Solutions Manual. Similarly, I wo
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uld appreciate any suggestions from users of the text itself that might help to make any subsequen
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t editions more accurate, more relevant, and easier to use. My address is:
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Dr. Mikell P. Groover
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Department of Industrial and Manufacturing Systems Engineering
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Lehigh University
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200 West Packer Avenue Bethleh
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em, PA 18015 RS RS
Office telephone number 610-758-
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4030. Fax machine number 610-758-
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4886.
E-
mail addresses: either Mikell
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.
or mpg0@Lehigh.e
RS
du
I hope you find the text and this Solutions Manual to be helpful teaching aids in your particul
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ar manufacturing course.
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Mikell P. Groover RS RS
2
,TABLE OF CONTENTS:
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Chapter Chapter Title* RS Page
1. Introduction (No questions or problems)
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2. The Nature of Materials
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3. Mechanical Properties of Materials (P)
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4. Physical Properties of Materials (P)
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5. Dimensions, Tolerances, and Surfaces RS RS RS 21
6. Metals (P) RS 24
7. Ceramics 29
8. Polymers 32
9. Composite Materials RS 36
10. Fundamentals of Casting (P) RS RS RS 39
11. Metal Casting Processes (P)
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12. Glassworking 57
13. Shaping Processes for Plastics (P)
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14. Rubber Processing Technology
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15. Shaping Processes for Polymer Matrix Composites
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16. Powder Metallurgy (P)
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17. Processing of Ceramics and Cermets
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18. Fundamentals of Metal Forming (P) RS RS RS RS 87
19. Bulk Deformation Processes (P)
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20. Sheet Metalworking (P)
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21. Theory of Metal Machining (P)
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22. Machining Operations and Machine Tools (P)
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23. Cutting Tool Technology (P)
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24. Economic and Product Design Considerations in Machining (P)
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25. Grinding and Other Abrasive Processes (P)
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26. Nontraditional Machining and Thermal Cutting Processes (P)
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27. Heat Treatment of Metals
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28. Cleaning and Surface Treatments
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29. Coating and Deposition Processes (P)
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30. Fundamentals of Welding (P) RS RS RS 190
31. Welding Processes (P) RS RS 197
32. Brazing, Soldering, and Adhesive Bonding
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33. Mechanical Assembly (P) RS RS 211
34. Rapid Prototyping (P)
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35. Processing of Integrated Circuits (P)
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36. Electronics Assembly and Packaging
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37. Microfabrication Technologies RS 233
38. Numerical Control and Industrial Robotics (P)
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39. Group Technology and Flexible Manufacturing Systems
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40. Production Lines (P) RS RS 246
41. Manufacturing Engineering RS 253
42. Production Planning and Control (P)
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43. Quality Control (P)
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44. Measurement and Inspection RS RS 271
*(P) indicates chapters with problem sets.
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3
, 2 THE NATURE OF MATERIALS RS RS RS
Review Questions
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2.1 The elements listed in the Periodic Table can be divided into three categories. What ar
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e these categories and give an example of each?
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Answer. The three types of elements are metals (e.g., aluminum), nonmetals (e.g., oxygen), and
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semimetals (e.g., silicon). RS RS
2.2 Which elements are the noble metals?
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Answer. The noble metals are copper, silver, and gold.
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2.3 What is the difference between primary and secondary bonding in the structure of materials?
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Answer. Primary bonding is strong bonding between atoms in a material, for example to form
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a molecule; while secondary bonding is not as strong and is associated with attraction betw
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een molecules in the material.
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2.4 Describe how ionic bonding works? RS RS RS RS
Answer. In ionic bonding, atoms of one element give up their outer electron(s) to the atoms
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of another element to form complete outer shells.
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2.5 What is the difference between crystalline and noncrystalline structures in materials?
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Answer. The atoms in a crystalline structure are located at regular and repeating lattice posit
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ions in three dimensions; thus, the crystal structure possesses a long-
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range order which allows a high packing density. The atoms in a noncrystalline structure are
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randomly positioned in the material, not possessing any repeating, regular pattern.
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2.6 What are some common point defects in a crystal lattice structure?
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Answer. Some of the common point defects are: (1) vacancy -
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RSa missing atom in the lattice structure; (2) ion-pair vacancy (Schottky defect) -
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a missing pair of ions of opposite charge in a compound; (3) interstitialcy -
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a distortion in the lattice caused by an extra atom present; and (4) Frenkel defect -
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RSan ion is removed from a regular position in the lattice and inserted into an interstitial posi
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tion not normally occupied by such an ion.
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2.7 Define the difference between elastic and plastic deformation in terms of the effect on the
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crystal lattice structure.RS RS
Answer. Elastic deformation involves a temporary distortion of the lattice structure that is pr
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oportional to the applied stress. Plastic deformation involves a stress of sufficient magnitude
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to cause a permanent shift in the relative positions of adjacent atoms in the lattice. Plastic d
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eformation generally involves the mechanism of slip -
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relative movement of atoms on opposite sides of a plane in the lattice.
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2.8 How do grain boundaries contribute to the strain hardening phenomenon in metals?
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Answer. Grain boundaries block the continued movement of dislocations in the metal during
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straining. As more dislocations become blocked, the metal becomes more difficult to deform; i
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n effect it becomes stronger.
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2.9 Identify some materials that have a crystalline structure.
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4