Manufacturing technology-II assignment for ME-VA

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Manufacturing technology-II Assignment

ME-VA

Note: Last date for submission is 23/11/2012

1. Give the nomenclature of lathe and milling machine tool with neat sketch.
2. Explain briefly orthogonal and oblique cutting also differentiate them.

3.  By merchant force circle prove that   ɸ = π/4 - 1/2(β-α).Also find the expression for  tan ɸ

4. Write short note on temperature distribution at chip tool interface.

5. For selection of tool material what properties of material should be considered?

6. Write short note on various cutting tool material.

7. Write short note with neat and suitable sketch-

1.       Types of tool wear

2.       Wear mechanism for tool

3.       Factors responsible for tool life.

8. What  are the basic purposes for using cutting fluids.
9. Write short note on

1.       Types of cutting fluid

2.       Action of cutting fluid

3.       Effect of cutting fluid on cutting tool

4.       Selection criteria for cutting fluid

10. Along with application, advantages, disadvantages and process parameters explain the principle of working of following machining processes:

1.       Abrasive jet machining(AJM)

2.       Electro Chemical Machining(ECM)

3.       Electro chemical grinding(ECG)

4.       Electric Discharge machining(EDM)

5.       Electron Beam Machining(EBM)

6.       Laser Beam Machining(LBM)

11. Write short note on

1.       Selection and classification of electrolyte for ECM

2.       Dielectric and tool material selection for EDM

12. Write short note on :

1.       Locating devices

2.       Clamping devices

3.       Drilling jig

4.       Milling jig

5.       Jigs and fixture

6.       Location principle

13. Explain briefly

1.       Development stages /growth of NC

2.       Axes of NC machines

3.       Classification of NC system

4.       Machine Control Unit (MCU)

5.       Tool changer in NC  Machine tool

6.       NC DNC and CNC and Advantages of each.

14. Explain manual part programming also mention commonly used G an M codes.
15. Write program for

1.       Two axis turning operation  and

2.        two axis milling operation

16. Write short note on –

1.       Group technology

2.       Part coding and classification

3.       Production flow analysis

4.       Steps for implementation/ adoption  of group technology

5.       Advantages for group technology

6.       Mono-code and poly-code system for part coding.

17. What is the effect of speed, feed rate and depth of cut on surface finish
18. What are the types of chips produced in machining and reason /factors responsible for them