Manufacturing ProcessesQ1. Chose the correct answer:1. Which of the following are variations of sheet-metal-bending operations: (a) coining, (b) flanging, (c)hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending?2. Springback in a sheet-metal-bending operation is the result of which one of the following: (a) elasticmodulus of the metal, (b) elastic recovery of the metal, (c) overbending, (d) overstraining, or (e) yield strengthof the metal?3. The cutting force in a sheet-metal blanking operation depends on which mechanical property of the metal(one correct answer): (a) compressive strength, (b) modulus of elasticity, (c) shear strength, (d) strain rate, (e)tensile strength, or (f) yield strength?4. A circular sheet-metal slug produced in a hole punching operation will have the same diameter as (a) thedie opening or (b) the punch?5. As sheet-metal stock hardness increases in a blanking operation, the clearance between punch and die shouldbe (a) decreased, (b) increased, or (c) remain the same?6. Which of the following stress or strength parameters is used in the computation of the force in an extrusionoperation (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensilestrength, or (e) yield strength?7. Notching is the operation of..........(a) Removal of excess metal from the edge of a strip to make it suitable for drawing without wrinkling, (b)Cutting of the excess metal at edge which was required for gripping purpose during press working operation,(c) Cutting in a single line across a part of the metal strip to allow bending or forming in progressive dieoperation while the part remains attached to the strip, (d) Punching in which punch is stopped as soon as themetal fracture is completed and metal is not removed but held in hole, (e) None of the abovc.is.......8. The important mechanical property of a material for extrusion purposes(a) Continuity, (b) Ductility, (c) Elasticity, (d) Plasticity, (e) Brittleness.9. The increase in hardness due to cold working is called..........(a) Cold hardening, (b) Hot hardening, (c) Work hardening, (d) Age-hardening.10. Swaging is the operation...........(a) In which the edges of sheet are turned over to provide stiffness and a smooth edge, (b) of producingcontours in sheet metal and of bending previously roll formed sections(c) In which a series of impact blows are transferred on dies so that solid or tubular work changes in cross-section or geometric shape(d) Employed to expand a tubular or cylindrical part(e) None of the above

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Q1. Chose the correct answer: 1. Which of the following are variations of sheet-metal-bending operations: (a) coining, (b) flanging, hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending? 2. Springback in a sheet-metal-bending operation is the result of which one of the following: (a) elas modulus of the metal, (b) elastic recovery of the metal, (c) overbending, (d) overstraining, or (e) yield streng of the metal? 3. The cutting force in a sheet-metal blanking operation depends on which mechanical property of the me (one correct answer): (a) compressive strength, (b) modulus of elasticity, (c) shear strength, (d) strain rate, tongilo otrongth or ( vield strength?

Q1. Chose the correct answer: 1. Which of the following are variations of sheet-metal-bending operations: (a) coining, (b) flanging, hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending? 2. Springback in a sheet-metal-bending operation is the result of which one of the following: (a) elas modulus of the metal, (b) elastic recovery of the metal, (c) overbending, (d) overstraining, or (e) yield streng of the metal? 3. The cutting force in a sheet-metal blanking operation depends on which mechanical property of the me (one correct answer): (a) compressive strength, (b) modulus of elasticity, (c) shear strength, (d) strain rate, tongilo otrongth or ( vield strength?

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter23: Fabricating Techniques And Practices

Section: Chapter Questions

Problem 11R: What is the difference between plate and sheet material?

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