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?

Principles of Management [ POM ] MG1351 question bank

click the link below to download the question bank for the subject "Principles of Management " as presribed by Anna University, Chennai

http://rapidshare.com/files/218408265/QUESTION_BANK.pdf

Slider and crank mechanism

In this power point presentation you will learn how to draw the velocity and acceleration polygons

http://rapidshare.com/files/218393446/AP.2_crank-slider-1.pps

Velocity and acceleration polygons

One of the dicy part in kinematics is drawing the velocity and acceleration polygons. I have made an attempt for the learners to understand it easier.
Do share your comments and let me know your view points.

Find the link below in which you can get an idea to draw about velocity and acceleration polygons for a four bar mechanism

http://rapidshare.com/files/218392029/AP.1_fourbar.pps

Saturday, April 4, 2009

Research topics in Mechanical Engineering

When I was browsing the internet I found few of the topics, which are considered for research. Hope you may find it useful.

Robotics { Which is my focus }

Parallel manipulators
Water robots
Master and slave robots
Minibots
BEAM robotics
unmanned arial vehicles
medical surgical robots

Advanced Manufacturing Technology- Laser materials processing
- Precision machining and processing - especially using closed-loop methods
- Novel processes (ultrasonically-assisted rolling, superplastic forming, high efficiency grinding)
- Knowledge support system for manufacture
- Free-from micromachining
- Advanced machining technologies for next generation aerospace materials
- Advanced monitoring strategies for the manufacture of high integrity aero-engine components
- Novel processes (High efficiency grinding)
- Laser materials processing (Laser cleaning)
- Knowledge support system for manufacture
- Intelligent processing monitoring and control
- Design for manufcture (Fixturing optimisation)
- Flexible forming - sheet metals
- Incremental forming - bulk metals

Advanced Materials- Cold 'thermal spraying' for linings of plain bearings
- New nano-crystalline materials for gas-turbine blade insulation
- Grain refinement methods for aluminium alloys
- Economic growth of carbon nano-tubes with emphasis in hydrogen storage
- Manufacture and testing of novel interpenetrating metal matrix composites
- Reactive processing of titanium carbide - reinforced metal composites
- Light metal nanostructured alloys for hydrogen storage applications
- Transparent, rare earth doped, nano-glass-ceramics for active waveguide devices
- Infrared-transmitting glass optical fibres for medical applications such as laser surgery and diagnostics
- Development of nanostructured solar cells for long duration aircrafts
- New nanocomposite coatings for tribological applications
- Life improvement of nanostructured thermal barrier coatings for gas turbine
- Processing and characterisation of functional nanosized powders
- Carbon nanotube reinforced metal matrix composites
- Creation of novel inorganic 1-D nanostructures
- Finite Element modelling of the deformation behaviour of 'real' metal foams for use as energy absorbers in crash protection systems
- Development of transparent nano-glass-ceramics for optical fibres for sensors
- Towards robust, high optical quality infrared optical fibres for applications in laser power transmission for laser surgery, and welding, and medical diagnostics
- Development of a new fabrication method for making glassy integrated chips which use light as the transmission medium

Bioengineering- Transport mechanisms in intervertebral disc degeneration, therapy and regeneration
- Development of a biofidelic, frangible leg form for use in occupant and pedestrian impact safety tests
- Mechanisms of neck and brain injury in 'whiplash'
- Development of feedthrough junctions for implantable medical devices
- Optimal cannula design and placement in mechanical cardiac support
- Development of an implantable rotary blood pump for chronic heart failure
- Exclusion of red blood cells in couette flow
- Modelling compromised hearts in the laboratory
- Nanocomposites and nanostructures for tissue engineering
- Degradable composites and sterilization
- Effect of nanoparticulates on toxicity and biocompatibility
- Physical vapour deposition of modified bioactive coatings
- Functionalised surfaces and cell surface interactions
- Mathematical Modelling of cell motility and experimental studies
- Proteomics and biocompatibility of biomaterials

Human Factors
- Tools and methods for determination of mental workload and situation awareness
- Speech-controlled virtual environments
- Identification of tacit skills and knowledge
- Representation of material properties in virtual environments
- Situation awareness in an industrial context
- Empirical development of interaction design guidance
- 3D data visualization
- Interaction between risk factors for musculoskeletal disorders
- Ergonomic design of work tools and equipment
- Biomechanics of materials handling
- Digital human modelling for work(place) design
- Assessment of risk-taking behaviour in industrial work

Polymer Composite Materials- Structural performance of composite fan blades and guide vanes
- Long fibre composites with nano-scale reinforcements in a polymer matrix
- Recovery of carbon- and other reinforcement fibres from scrap composite components
- Bio-degradable composites for medical implant applications
- Analysis of resin infusion for large composite structures
- Finite element analysis of composite materials with statistical variations
- Automotive composite materials for pedestrian safety applications

Structural Integrity and Dynamics- Combined fretting, fatigue and wear computations for high performance mechanical transmissions
- Elastic-plastic notch-strain prediction methods extending 1D tests to triaxial stress contexts
- Elastic stability of heavily-loaded hollow shafts under combined loading with dynamic effects
- Coupled active controllers for active suspension, ABS and traction control in performance cars
- Modular active sealing in modern turbomachinery
- Dynamic behaviour of aeroengine ball bearings
- Structural integrity of high temperature welded structures
- Elastic-plastic and creep anisotropy of power plant structures
- Smart piezoelectric actuators for precision microsystems applications
- The dynamics of super-extended space tethered systems (space elevators)
- Failure prediction for superplastic forming of aeroengine materials
- Investigation into power losses in automotive transmissions (especially rear differential)
- Novel systems for offshore wind-generation using direct conversion to compressed-air and subsea storage of the compressed air
- Novel power-transmission mechanisms using magnetic fields oscillating at specific frequencies

Thermodynamics and Fluid Mechanics
- CFD studies of combustion processes in novel engine configurations
- Numerical prediction of lubricant distribution and heat-transfer in transmission systems
- Thermal management in advanced mild-hybrid diesel-electric vehicles
- Flow visualisation in the vicinity of working gears
- Thermal management of a solid state hydrogen store utilising the waste heat from a fuel cell
- Experimental and CFD projects in the area of aeroengine transmission systems
- Design of a novel static mixer
- Thermal management of advanced electric actuation systems for aircraft
- Turbulent skin-friction drag reduction using compliant viscoelastic coatings
- Turbulent flow control over an aircraft wing with surface plasma actuators
- CFD studies of periodic instabilities in a combustor
- Particulate dispersion in the environment
- Air-borne drug delivery for paediatric care
- Modelling flow of films liquid around obstructions