0 th Review

ENHANCEMENT OF MECHANICAL PROPERTIES OF ALUMINIUM-GRAPHITE COMPOSITES USING FRICTION

STIR PROCESSING

PRESENTED BY

Praveen - Reg No

UNDER THE GUIDENCE OF MR.J.RAMESH KUMAR.,M.E.,(Ph.D).,

INTRODUCTION

• Aluminium is third abundant element in earths crust .

• Aluminium was isolated by friedrich wholer in 1827.

ALUMINIUM GRAPHITE

•Aluminium is a relatively soft, durable,

lightweight, ductile and malleable metal .

•Corrosion resistance is excellent

•It is one form of carbon and abundant in

nature.

•It has an excellent abrasive resistance

(solid lubricant)

LIMITATIONS OF PURE ALUMINIUM

• Poor strength ,

• Low melting point ,

• Poor machineability.

SOLUTION FOR SUITING ALUMINIUM FOR ENGINEERING APPLICATIONS

Reinforcement of Aluminium

It is the process of intensifying the aluminium usually by influence of other metals.

e.x : Aluminium metal matrix composites, Al6061, LM 26 Al,

Some reinforcing materials

• Silicon carbide,

• Graphite ,

• Boron carbide ,

• Magnesium ,

LITERATURE REVIEW

PAPER TITLE

• Friction and wear performance of copper–graphite surface composites fabricated by friction stir processing(FSP) H. Sarmadi n, A.H.Kokabi,S.M.SeyedReihani

• Prospects for graphite aluminium composites in engineerin industries B.C.pai,R.M.Pillai,K.G Sathyanarayana

• Bearing Performance of Graphitic Aluminum Particulate Composite Materials S. Biswas, A. Shantharam, N.A.P. Rao, K. Narayana Swamy,P.K. Rohatgi, and S.K. Biswas,

• Effect of Processing Parameters and amount of additives on the Mechanical Properties and Wear Resistance of Copper-based Composite Montasser Dewidara*, G.T. Abdel-Jaberb, Mahmoud Bakreya, and Hussien Badry

• Tribological Studies of Al- based Composite Developed from a Waste Material Venkata Siva S. B.1, G. SreenivasaRao2, K. L. Sahoo

RESULTS

• Dispersion of graphite particles is uniform in FSP,good wear resistance.

• Aluminium graphite composites posses good hardness.

• Aluminium graphite composites posses excellent wear resistance.

• Good enhancement of mechanical properties.

• Posses excellent microhardness.

PREDICTION FROM REVIEW

• Graphite act as solid lubricant.

• Aluminium graphite composite posses excellent wear resistance.

• FSP improves micro properties of aluminium graphite composite.

• This composite find wide application in engineering such as bearings, pistons,air

craft fuselage, so on…..

OBJECTIVES

In this paper we are keen in fabricating aluminium

graphite composite using friction stir processing and we also examine its

microhardness and wear behaviour via brinell hardness test ,scanning electron

microscope (SEM) & pin on disk apparatus respectively .

ADVANTAGES

• Excellent wear resistance

• Improved Hardness

• Suitable for automobiles, bearings, pistons & air craft parts.

FRICTION STIR PROCESSING

A nonconsumable rotating tool with a specially designed

pin and shoulder is inserted into the abutting edges of plates, to be joined and then

traversed along the line of joint friction generates heat to joint .

Invention - The welding institute (TWI) in 1991 at U.K.

METHODOLOGY

• Preparation of material - Friction Stir Processing (FSP)

• Material testing

Microstructure - Orientation Imaging Microscopy

Hardness test - Vickers hardness apparatus

Wear Test - Pin on disk apparatus

• Analysis

SCHEMATIC LAYOUT

REFERENCES

1. Friction and wear performance of copper–graphitesurface composites fabricated by friction stir processing(FSP) H. Sarmadi n, A.H.Kokabi,S.M.SeyedReihani

2. Prospects for graphite aluminium composites in engineerin industries B.C.pai,R.M.Pillai,K.G Sathyanarayana 3. Bearing Performance of Graphitic Aluminum Particulate Composite Materials S. Biswas, A. Shantharam, N.A.P.

Rao, K. Narayana Swamy,P.K. Rohatgi, and S.K. Biswas,4. Effect of Processing Parameters and amount of additives on the Mechanical Properties and Wear Resistance of

Copper-based Composite Montasser Dewidara*, G.T. Abdel-Jaberb, Mahmoud Bakreya, and Hussien Badry5. Tribological Studies of Al- based Composite Developed from a Waste Material Venkata Siva S. B.1, G.

SreenivasaRao2, K. L. Sahoo6. Discontinuous Graphite Reinforced Aluminum, and Copper Alloys for High Thermal Conductivity-Thermal

Expansion Matched Thermal Management Applications Dr. James A. Cornie ,Shiyu Zhang ,Robert Desberg ,Mark Ryals

7. Characterization of aluminium/graphite particulate synthesized using novel method termed – in situ powder metallurgy F.AKHLAGHI and S.A.PELASEYYED

8. Metal Matrix Composites Offer the Automotive Industry an Opportunity to Reduce Vehicle Weight, Improve Performance Anthony Macke*B.F. Schultz ,Pradeep Rohatgi,

9. INVESTIGATION OF TRIBOLOGICAL BEHAVIOR AND ITS RELATION WITH PROCESSING AND MICROSTRUCTURES OF AL6061 METAL MATRIX COMPOSITES SURESH R & M. PRASANNA KUMAR

10. Hartaj Singh, Sarabjit, Nrip Jit, Anand K Tyagi; Journal of Engineering Research and Studies, An Overview of Metal Matrix composites processing and SiC based Mechanical properties

THANK YOU

QUERIES ?