ME2024 INDUSTRIAL TRIBOLOGY L T P C
3 0 0 3
UNIT I SURFACES AND FRICTION 9
Topography of Engineering surfaces- Contact between surfaces - Sources of sliding Friction – Adhesion-Ploug11hing- Energy dissipation mechanisms Friction Characteristics of metals - Friction of non metals. Friction of lamellar solids - friction of Ceramic materials and polymers - Rolling Friction - Source of Rolling Friction – Stick slip motion - Measurement of Friction.
UNIT II WEAR 9
Types of wear - Simple theory of Sliding Wear Mechanism of sliding wear of metals - Abrasive wear – Materials for Adhesive and Abrasive wear situations - Corrosive wear - Surface Fatigue wear situations - Brittle Fracture - wear - Wear of Ceramics and Polymers - Wear Measurements.
UNIT III LUBRICANTS AND LUBRICATION TYPES 9
Types and properties of Lubricants - Testing methods - Hydrodynamic Lubrication – Elasto-hyd rodynamic lubrication- Boundary Lubrication - Solid Lubrication- Hydrostatic Lubrication.
UNIT IV FILM LUBRICATION THEORY 9
Fluid film in simple shear - Viscous flow between very close parallel plates - Shear stress variation Reynolds Equation for film Lubrication - High speed unloaded journal bearings - Loaded journal bearings – Reaction torque on the bearings - Virtual Co-efficient of friction - The Sommerfield diagram.
UNIT V SURFACE ENGINEERING AND MATERIALS FOR BEARINGS 9
Surface modifications - Transformation Hardening, surface fusion - Thermo chemical processes – Surface coatings - Plating and anodizing - Fusion Processes - Vapour Phase processes - Materials for rolling Element bearings - Materials for fluid film bearings - Materials for marginally lubricated and dry bearings.
TOTAL: 45 PERIODS
TEXT BOOK:
1. A. Harnoy “ Bearing Design in Machinery “Marcel Dekker Inc,NewYork,2003
REFERENCES:
1. M.M.Khonsari & E.R.Booser, “ Applied Tribology”,John Willey &Sons,New York,2001
2. E.P.Bowden and Tabor.D., " Friction and Lubrication ", Heinemann EducationalBooks Ltd., 1974.
3. A.Cameron, " Basic Lubrication theory ", Longman, U.K.., 1981.
4. M.J.Neale (Editor), " Tribology Handbook ", Newnes. Butter worth, Heinemann, U.K., 1995.
3 0 0 3
UNIT I SURFACES AND FRICTION 9
Topography of Engineering surfaces- Contact between surfaces - Sources of sliding Friction – Adhesion-Ploug11hing- Energy dissipation mechanisms Friction Characteristics of metals - Friction of non metals. Friction of lamellar solids - friction of Ceramic materials and polymers - Rolling Friction - Source of Rolling Friction – Stick slip motion - Measurement of Friction.
UNIT II WEAR 9
Types of wear - Simple theory of Sliding Wear Mechanism of sliding wear of metals - Abrasive wear – Materials for Adhesive and Abrasive wear situations - Corrosive wear - Surface Fatigue wear situations - Brittle Fracture - wear - Wear of Ceramics and Polymers - Wear Measurements.
UNIT III LUBRICANTS AND LUBRICATION TYPES 9
Types and properties of Lubricants - Testing methods - Hydrodynamic Lubrication – Elasto-hyd rodynamic lubrication- Boundary Lubrication - Solid Lubrication- Hydrostatic Lubrication.
UNIT IV FILM LUBRICATION THEORY 9
Fluid film in simple shear - Viscous flow between very close parallel plates - Shear stress variation Reynolds Equation for film Lubrication - High speed unloaded journal bearings - Loaded journal bearings – Reaction torque on the bearings - Virtual Co-efficient of friction - The Sommerfield diagram.
UNIT V SURFACE ENGINEERING AND MATERIALS FOR BEARINGS 9
Surface modifications - Transformation Hardening, surface fusion - Thermo chemical processes – Surface coatings - Plating and anodizing - Fusion Processes - Vapour Phase processes - Materials for rolling Element bearings - Materials for fluid film bearings - Materials for marginally lubricated and dry bearings.
TOTAL: 45 PERIODS
TEXT BOOK:
1. A. Harnoy “ Bearing Design in Machinery “Marcel Dekker Inc,NewYork,2003
REFERENCES:
1. M.M.Khonsari & E.R.Booser, “ Applied Tribology”,John Willey &Sons,New York,2001
2. E.P.Bowden and Tabor.D., " Friction and Lubrication ", Heinemann EducationalBooks Ltd., 1974.
3. A.Cameron, " Basic Lubrication theory ", Longman, U.K.., 1981.
4. M.J.Neale (Editor), " Tribology Handbook ", Newnes. Butter worth, Heinemann, U.K., 1995.
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