Tuesday, April 7, 2009

CAD/CAM lab ME 2309 syllabus and Viva

ME1356 CAD/CAM LAB

LIST OF EXPERIMENTS
A) COMPUTER AIDED DESIGN (CAD) 15
3D Part modeling – protrusion, cut, sweep, draft, loft, blend, rib
Editing – Move, Pattern, Mirror, Round, Chamfer
Assembly – creating assembly from parts – assembly constraints
Conversion of 3D solid model to 2D drawing - different views, sections, isometric view and dimensioning
Introduction to Surface Modeling
Introduction to File Import, Export – DXF, IGES, STL, STEP
3D modeling of machine elements like Flanged coupling, screw jack etc.

Note: Any one of the 3D MODELING softwares like Pro/E, IDEAS, CATIA, UNIGRAPHICS, AutoCAD to be used.

B) COMPUTER AIDED MANUFACTURING (CAM) 21
1. MANUAL PART PROGRAMMING (Using G and M Codes) in CNC lathe
1.1 Part programming for Linear and Circular interpolation, Chamfering and Grooving
1.2 Part programming using standard canned cycles for Turning, Facing, Taper turning and Thread cutting

2. MANUAL PART PROGRAMMING (using G and M codes) in CNC milling
2.1 Part programming for Linear and Circular interpolation and Contour motions.
2.2 Part programming involving canned cycles for Drilling, Peck drilling, and Boring.

C) SIMULATION AND NC CODE GENERATION 9
NC code generation using CAD / CAM softwares - Post processing for standard CNC Controls like FANUC, Hiedenhain etc.

I have made an attempt to list down few FAQs in viva for CAD/CAM lab.
You may follow the pattern and prepare well for the exams.ALL THE BEST


1. What is the difference between linear interpolation and circular interpolation?
2. What are G and M codes? Give examples
3. What is meant by incremental coding system
4. What is meant by absolute method of referring?
5. What is interpolation?
6. What advantage a CNC machine has over a conventional machine?
7. What is a CNC program?
8. What is a simulation? Why is it necessary?
9. What is a dry run?
10. What is part programming?
11. Explain canned cycle.
12. Why is mirroring necessary in programming?
13. What are the controls available in the CNC machine?
14. What are the advantages of using computer aided design?
15. List out some of the modeling software currently available?
16. What are the limitations of solidworks?
17. What are the requirements for installing the solidworks?
18. What is the purpose of hole wizard?
19. Differentiate cut and split.
20. What is meant by detailing?
21. What are the constraints available for assembly?
22. Explain the method of creating a part in solidworks.
23. Explain the parent-child relationship in modeling.
24. list the features that can be created in solidworks.
25. What is instant 3D modeling?

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