11 1. Screw threads can be fabricated by PM II. Wall thickness should be a minimum of 1.5 mm III. Parts can be made to near net shape or net shape IV. Part shrinkage occurs during sintering due to pore size reductio Which statement(s) is/are true for powder metalurgy (PM)? a) 1, II, II and IV b) O I, Il and III C) II, III and IV d) O I and II e) O Only I

11 1. Screw threads can be fabricated by PM II. Wall thickness should be a minimum of 1.5 mm III. Parts can be made to near net shape or net shape IV. Part shrinkage occurs during sintering due to pore size reductio Which statement(s) is/are true for powder metalurgy (PM)? a) 1, II, II and IV b) O I, Il and III C) II, III and IV d) O I and II e) O Only I

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Similar questions

Which of the following most accurately describes liquid state sintering processes? O a. O b. O C. O d. The transport mechanism is viscous flow and diffusion. The transport mechanism is diffusion. The transport mechanism is evaporation and condensation. The transport mechanism is viscous flow and solution precipitation.
Company XSheetMetal Ltd. is mass producing the component illustrated in Figure 1. 90 R0,5 0,5 Figure 1 (All dimensions in mm) Page 5 of 5 b) As a process planner within this company what type of tools and machines would you require to manufacture this part?
True or false statements
Question 2 The following data relate to an injection moulding grade of a thermoplastic polymer. Determine whether this melt obeys the power law and if so, estimate the power law exponent n. Comment on your findings. Shear rate (s') Viscosity (Pa.s) 10 2590 100 2260 500 1370 1000 845 2000 525 5000 278 10000 175
What are "no-bake" molds, and how do they compare to green sand molds? a) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with resins that do not need heat in order to cure. The result is a mold that can maintain better dimensional control over high production volume. b) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with fine wood chips. They are then compressed with high pressure without baking. c) "No Bake" molds replace the tradition clay-and-water or thermoset polymer binders used in traditional sand molds with dry clay that do not need heat in order to cure. The result is a mold that doesn't require and baking. d) "No Bake" molds is the same as the tradition clay-and-water but used in high production volume.
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28 1. Powders are compressed into desired shape to produce green compact II. Lubricants are added to reduce die wall friction and to aid part ejection. II. Lubricants may include stearic acid, lithium stearate, and powdered graphite IV. One of the particles might melt during solid state phase sintering. Mark the false statement(s) above about the Powder Metallurgy (PM). a) I, Il and III b) O Only III c) Only I d) Il and II e) Only IV f) Only II 1ll and IV h) I and I
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10 Material Science and Engineering