SRl\1 UNIVERSITY FACULTY OF ENGINEERING AND TECHNOLOGYT

ME0008-INDUSTRIAL TRIBOLOGY COURSE PLAN

Branch"Illrd Ycar-Mcchanical VI Scm, S.No Topics No. of Hrs

UNIT-I SURFACES AND FRICTION 1 Introduction to the concept oftribology, Tribological problems 1 2 Nature of engineering surfaces, Surface topography 1

Surface profilometer, measurement of surface topography 3 1 Contact between surfaces, Sources of sliding Friction 4 I Friction due to ploughing 5 1 Friction due to adhesion 6 1 Friction characteristics of metals and non metals 7 1

8 Sources of rolling friction, Stick slip motion 1 Friction of ceramic materials and polymers, Measurement of friction9 1

UNIT-II WEAR Wear and Types of Wear10 1

11 Simple theory of sliding wear mechanism 1 12 Abrasive Wear 1

Materials for adhesive and abrasive wear situations 13 1 14 Corrosive wear 1 15 Surface fatigue wear situations 1

Wear of ceramics16 1 Wear of polymers17 1 Wear measurements 18 1

UNIT-III FILM LUBRICATION THEORY Fluid film in simple shear 19 1 Viscous flow between very close parallel plates 20 1

21 Shear stress variation 1 22 Reynolds equation for film lubrication 1

Reynolds equation for film lubrication 23 1 24 High speed unloaded journal bearings 1 25 High speed loaded journal bearings 1

Somerfield diagram 26 1 UNIT-IV LUBRICANTS AND LUBRICATION TYPES

Types of Lubricants27 1 28 Types and properties of Lubricants, 1 29 Testing methods 1 30 Hydrodynamic Lubrication 1

Elasto-hydrodynamic Lubrication 31 1 Hydrodynamic Lubrication, Problems,Elasto-hydrodynamic Lubrication 32 1 Solid lubrication 33 1

34 Hydrostatic Lubrication, Problems 1 35 Hydrodynamic Lubrication, Problems 1

UNIT-V SURFACE ENGINEERING AND MATERIALS FOR BEARINGS 36 Classification of Surface modifications and Surface coatings 1

37 Surface modifications, Transformation hardening 1 38 Surface modifications -surface fusion 1 39 Thermo chemical Processes 1 40 Surface coatings -Plating 1 41 Surface coatings -anodizing 1 42 Materials for rolling element bearings 1 43 Materials for fluid film bearings 1 44 Materials for marginally lubricated and dry bearings 1

Total hours: 45 TEXTBOOKS:

1. Hutchings.I,Tribology,Friction and Wear of Engineering Material, Edward Arnold,London, 1992 2. Williams.J.A,Engineering Tribology, Oxford University Press, 1994

REFERENCEBOOKS: 1. Stolarski.T.A, Tribology in Machine Design, Industrial Press Inc.,1990 2. Bowden.E.P.and Tabor.D., Friction and Lubrication, Heinemann Educational Books Ltd,1974 3. Cameron.A, Basic Lubrication Theory, Longman, U.K.,1981 4. Neale.MJ.,(Editor), Tribology Handbook, Newnes Butter worth, Heinemann,U.K.,J975

Name. of the staff: k·~ §.. HPrNM V IJ-AIVI ~ \t; _ P"(\J~(vt~. ot[01J~

L T P C

3 0 30Industrial Tribology MEOOO8

Prerequisite

Nil

Student outcomes Program Educational Objectives

The main objective of the B.Tech in Mechanical Engineering Program is to provide a periodically-updated curriculum so that, following the completion of the program and with a few years of experience, our alumni will have the expertise to:

1. Practice 2. Enhance 3. Solve 4. Work in large mechanical professional industrial, cross-functional teams engineering In practice to meet social, and and pursue life-long different the global environmental learning. disciplines towards standards with problems with system design, ethical and social appropriate realization, and responsibility. techniques and manufacturing. tools. tools.

(a) an ability to apply knowledge of mathematics, X X science, and engineering

(c) an ability to design a X X X system, component, or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturabil ity, and sustainability (e) an ability to identify, X X formulate, and solve engineering problems (j) a knowledge of X X X contemporary issues

(k) an ability to use the X X X techniques, skills, and modem engineering tools necessary for engineering practice. Course designed by Department of Mechanical Engineering

Student1 a b c d e f g h i j k outcome

x x x x x

2 Category GENERAL BASIC ENGINEERING PROFESSIONAL SCIENCES SCIENCES AND SUBJECTS

(G) TECHNICAL ART

(B) (P) (E)

X

Broad area Manufacturing Design3 Thermal I Genaral

I

(for X pl·ofessional courses only, i.e 'under P' category)

4 Course Coordinatol·

L T P C

MEOOO8 Industrial Tribology 3 0 0 3

Prerequisite

Nil

(Approved Hand Book may be used in the Examination)

PURPOSE

To present the engineering concepts of friction, its effects and different lubrication theories and types used in industries.

INSTRUCTIONAL OBJECTIVES

To make the students familiar with

1. The friction and wear in materials 2. The lubricants and their properties. 3. The preparation of bearing materials

UNIT I SURFACES AND FRICTION 9

Topography of Engineering surfaces- Contact between surfaces - Sources of sliding Friction - Adhesion ploughing­Friction characteristics of metals - Friction of non metals- Friction of ceramic materials and polymers - Rolling friction - Source of rolling friction -Stick slip motion - Measurement offriction.

UNIT II WEAR 9

Types of wear - Simple theory of sliding wear mechanism -Abrasive wear - Materials for adhesive and abrasive wear situations - Corrosive wear - Surface fatigue wear situations - Corrosive wear- Surface fatigue wear - Wear of ceramics and polymers - Wear measurements.

UNIT III 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 -The Somerfield diagram.

UNIT IV LUBRICANTS AND LUBRICATION TYPES 9

Types and properties of Lubricants - Testing methods - Hydrodynamic Lubrication - Elasto hydrodynamic lubrication- Boundary Lubrication - Solid Lubrication Hydrostatic Lubrication.

UNIT V SURFACE ENGINEERING AND MATERIALS FOR BEARINGS

Surface modifications - Transformation hardening - Surface fusion - Thermo chemical processes - Surface coatings - Plating and anodizing - Materials for rolling element bearings - Materials for fluid film bearings - Materials for marginally lubricated and dry bearings.

TOTAL 45

TEXTBOOKS

1. Hutchings, I. M., Tribology, Friction and Wear ofEngineering Material, Edward Arnold, London, 1992.

9

2. Williams, J. A., Engineering Tribology, Oxford University Press,1994.

REFERENCE

1.. Stolarski T. A., Tribology in Machine Design, Industrial Press Inc., 1990.

2..Bowden, E. P., and Tabor. D., Friction and Lubrication, Heinemann Educational Books Ltd., 1974.

3. Cameron, A., Basic Lubrication theory, Longman, U.K., 1981.

4. Neale, M. J., (Editor), Tribology Handbook, Newnes Butter worth, Heinemann, U.K., 1975.