Previous year question paper for IT (M-TECH production engineering 2nd)

Introduction:

Friction, wear and lubrication, types of egg. Contacts: conforming and non-conforming. Types of

motion; rubbing sliding. Oscillating. Rolling. and Surface of interactions: elastic and plastic

deformations. Properties of materials. Surface energy and flash temperature theory. (8 Hours)

Friction:

Laws of sliding friction, concept of adhesion, Tabor's mode off friction elastic thermo friction, rolling

friction, measurement of friction. (7 Hours)

Wear:

Laws of wear. Types of wear such as adhesive, declamination, abrasive, fatigue, corrosive, fretting,

erosive, electrical and oxidative. Measurement of wear in dry at me sphere and different

environments. Prevention and control of wear and friction in machines, wear of cutting tool and dies,

study of abrasion in grinding, lapping and honing. (5 Hours)

Lubrication:

Mechanisms of lubrication, Boundary. Squeeze film hydrodynamic and elasto hydro-dynamic and

hydro static lubrications plasto hydrodynamic lubrication, solution of Reynolds's equation in two and

three-dimensional flow. Pressure distribution load carrying capacity friction forces in oil film and

Co-efficient of friction in joumal bearing. Sold lubricants types and applications. (5 Hours)

Bearing Design:

Design of bearing: clearance in journal bearing. minimum film thickness, sommar-field Number, Oil

grooves and flow of oil in axial and circumferential grooves ca vi tat ions and turbulence in oil

bearings. Heat generation and cooling or bearing Hydrostatic and dynamic and their applications in

machine Tools. Design of air bearing and other gas bearing. (5 Hours)

Rolling Friction:

Reynold's slip, Heathe cote concept selection of roller bearings and their methods of lubrication

design aspects and modes of bearing failures and elasto hydro dynamic lubrication. (5 hours)

Solid Lubricants:

Their applications in metal forming processes. (5 Hours)