Download JNTUA M.Tech 1st Sem 2019 Feb Regular and Supply 17D04106 Advanced Tool Design Question Paper

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Code: 17D04106

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M.Tech I Semester Regular & Supplementary Examinations January/February 2019

ADVANCED TOOL DESIGN

(CAD/CAM)

(For students admitted in 2017 & 2018 only)

Time: 3 hours

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Max. Marks: 60

Answer all the questions

1. Discuss tool engineering, classification and its objectives.

   OR

   Define surface finish and what are the factors affecting surface finish.

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2. In an orthogonal turning operation, the following data have been observed:

   Uncut chip thickness = 0.127 mm

   Width of cut = 6.35 mm

   Cutting speed = 2 m/s

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   Rake angle = 10°

   Cutting force = 567 N

   Thrust force = 227 N

   Chip thickness = 0.228 mm.

   Determine shear angle, friction angle, shear strength of work piece, friction force, shear force, cutting power. Also find out chip velocity, shear strain and strain rate.

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3. OR

   With a neat diagram, explain the force analysis in Orthogonal cutting.

4. OR

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   With neat sketches, explain the different turning fixtures.

5. Explain the use of turnover jig with a neat diagram

6. With a neat sketch, explain the assembly of a die set showing the components and explain the use of various components available in the die set assembly.

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7. OR

   Calculate the blank length to make the part as shown in the figure. Also determine the bending force required if the ultimate tensile strength of material is 3500 kg/cm². The die radius is 8 mm and the bend length is 120 cm.

   40

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   4°R

   4°R

   80

8. Explain the methods of mounting of jobs and cutting tools in machine tools.

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9. OR

10. Discuss about universal fixtures, tool resetting.

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