ME-405 Manufacturing Technology - Jun 2024 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aExplain Nomenclature of a single point cutting tool with neat sketches.
   How to answer

   • Define single point cutting tool and its nomenclature system
   • List angles: back rake, side rake, end relief, side relief, end cutting edge, side cutting edge, nose radius
   • Explain function of each angle
   • Neat sketches of tool in plan and side views with angles marked
2. 7 Marks
   bMention the different types of cutting fluids. And explain the uses of Cutting Fluids.
   How to answer

   • Define cutting fluids and their functions
   • List types: straight oils, soluble oils, synthetic, semi-synthetic
   • Explain cooling, lubrication, chip removal, corrosion protection uses
   • Give examples of applications
3. 7 Marks
   aExplain with neat sketches the following operation: Honing and Lapping.
   How to answer

   • Define honing: principle, honing tool with sticks, reciprocating and rotating motion
   • Define lapping: principle, lap and abrasive slurry, hand and machine lapping
   • Neat sketches of both operations
   • Applications and surface finish comparison
4. 7 Marks
   bList out various methods used for gear finishing and explain any four methods.
   How to answer

   • List gear finishing methods: shaving, grinding, honing, lapping, burnishing, skiving
   • Explain any four with principle and tool
   • Neat sketches of processes
   • Advantages and applications
5. 7 Marks
   aExplain the principle of operation of gear hobbling and gear shaving process.
   How to answer

   • Principle of gear hobbing: hob as worm cutter generating motion
   • Kinematics of hob and blank rotation
   • Principle of gear shaving: rack or rotary shaving cutter
   • Neat sketches and applications
6. 7 Marks
   bExplain the elements of gear with neat diagram.
   How to answer

   • Define gear terminology: pitch circle, addendum, dedendum, module, pressure angle
   • List elements: tooth thickness, clearance, backlash, face width
   • Neat diagram of gear tooth with elements labelled
   • Relation between elements
7. 7 Marks
   aIllustrate with suitable sketch the blow molding process for producing plastics serving bottles.
   How to answer

   • Steps: parison extrusion, mould closing, air blowing, cooling and ejection
   • Suitable sketch of blow molding stages for bottles
   • Materials used for serving bottles
   • Process parameters and advantages
8. 7 Marks
   bExplain the calendaring process.
   How to answer

   • Define calendaring and principle of heated rollers
   • Process steps for sheet/film production
   • Sketch of calendar rolls arrangement
   • Applications and materials
9. 7 Marks
   aIllustrate with neat sketch, about working principle of abrasive jet machining.
   How to answer

   • Principle: high velocity abrasive particles in gas jet eroding material
   • Components: nozzle, abrasive hopper, carrier gas, mixing chamber
   • Neat sketch of abrasive jet machine setup
   • Process parameters, advantages and applications
10. 7 Marks
    bWrite about the different types of non - destructive testing methods and applications of each technique.
    How to answer

    • List NDT methods: visual, penetrant, magnetic particle, ultrasonic, radiography, eddy current
    • Principle of each technique in brief
    • Applications of each technique
    • Advantages and limitations
11. 7 Marks
    aCompare the plasma arc cutting with wire cut EDM based on process capabilities and applications.
    How to answer

    • Principle of plasma arc cutting and wire-cut EDM
    • Comparison on material, accuracy, surface finish, thickness, cost
    • Tabular comparison of process capabilities
    • Typical applications of each
12. 7 Marks
    bAttempt the following

    1. i)Explain the types of Plastics.
    2. ii)State the purpose of the following plastics 1) Plasticizers 2) Filler 3) Stabilizers
    How to answer

    • Types of plastics: thermoplastics vs thermosetting with examples
    • Purpose of plasticizers: flexibility
    • Purpose of filler: strength and cost reduction
    • Purpose of stabilizers: thermal and UV stability
13. 7 Marks
    aSketch and describe band Saw and Circular Saw.
    How to answer

    • Sketch of band saw: continuous band blade over pulleys
    • Sketch of circular saw: rotating disc blade
    • Working principle and feed of each
    • Applications and comparison
14. 7 Marks
    bDescribe the types of metal flow that occur in extrusion. Why are they important?
    How to answer

    • Types of metal flow in extrusion: direct, indirect, hydrostatic flow patterns
    • Describe laminar, turbulent and dead zone formation
    • Effect on defects like piping and surface cracking
    • Importance for die design and product quality
15. 7 Marks
    aExplain the concept of adaptive control of NC machines. List out various types G and M codes function.
    How to answer

    • Define adaptive control: monitoring and adjusting cutting conditions
    • Types: ACC and ACO systems
    • List G codes: G00, G01, G02, G03 etc. with functions
    • List M codes: M03, M05, M06, M08 etc. with functions
16. 7 Marks
    bWhat do you mean by centreless grinding? Discuss.
    How to answer

    • Define centreless grinding: workpiece supported between wheels without centres
    • Components: grinding wheel, regulating wheel, work rest
    • Working principle with sketch
    • Types, advantages and applications