Download GTU BE/B.Tech 2019 Winter 6th Sem New 2161909 Production Technology Question Paper

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- VI (New) EXAMINATION - WINTER 2019
Subject Code: 2161909 Date: 09/12/2019

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.

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3. Figures to the right indicate full marks.

1. Q.1 (a) Draw neat sketch of single point cutting tool geometry. [03]

   (b) Write different between Orthogonal and Oblique with reference to metal cutting processes. [04]

   (c) Define Tool life and Explain factors affecting tool life along its effect. [07]

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2. Q.2 (a) Brief explain different heat zone of metal cutting process with sketch [03]

   (b) Enlist thread manufacturing processes and explain any one [04]

   (c) Write function and characteristic of cutting fluid. [07]

   OR

   (c) What are the different gear manufacturing processes? Explain any two. [07]

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3. Q.3 (a) List out the velocities involved in metal cutting process and draw velocity relation diagrams [03]

   (b) Enlist the tool wear mechanisms and Explain any one. [04]

   (c) Draw the Merchant’s circle diagram and derive relation among various forces acting on cutting tool [07]

   OR

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   (c) Write Advantage and disadvantages of jig fixtures. [07]

4. Q.4 (a) Write the function of bush in Jig and Enlist type of bush with sketch. [03]

   (b) Describe the degrees of freedom for work piece located in space. Draw a simple sketch to show the 3-2-1 locating principle and explain [04]

   (c) What is 'tool signature’? Illustrate with an example [07]

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5. Q.5 (a) Differentiate between gear shaving & gear burnishing [03]

   (b) What is strip layout? Calculate the utilization factor with taking a suitable a blank part. [04]

   (c) Enlist various elements of jig and Fixture. [07]

   OR

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   (c) Compare a combination die and a Compound die [07]

6. Q.S5 (a) Explain Ultra-Sonic Machining process with sketch and its advances, disadvances and application. [03]

   (b) What is meant by fool-proofing with reference to jig-fixture? [04]

   (c) Differentiate between Piercing and Blanking operation [07]

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   OR

   (c) What is centre of pressure with reference to press tool? And determine the center of pressure by taking suitable an unsymmetrical blank part with appropriate dimension. [07]

7. Q4 (a) Write important functions of dielectric fluid and electrolyte [03]

   (b) Draw LBM sketch with labels. [04]

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   (c) Explain Electron Beam Machining process with sketch. [07]

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