Friction stir welding (FSW) is established as one of the prominent welding techniques to join aluminium matrix composites (AMCs). It is a solid state welding process, takes place well below the melting temperature of the material, eliminates the detrimental effects of conventional fusion welding process. Although the process is capable to join AMCs, challenges are still open that need to be fulfill to widen its applications. This paper gives the outline of the friction stir welding technique used to join AMCs. Effect of process variables on the microstructure and mechanical properties of the joints, behavior of reinforcing materials during welding, effect of tool profiles on the joint strength are discussed in detail. Few improvements and direction for future research are also proposed.

Friction stir welding (FSW) is established as one of the prominent welding techniques to join aluminium matrix composites (AMCs). It is a solid state welding process, takes place well below the melting temperature of the material, eliminates the detrimental effects of conventional fusion welding process. Although the process is capable to join AMCs, challenges are still open that need to be fulfill to widen its applications. This paper gives the outline of the friction stir welding technique used to join AMCs. Effect of process variables on the microstructure and mechanical properties of the joints, behavior of reinforcing materials during welding, effect of tool profiles on the joint strength are discussed in detail. Few improvements and direction for future research are also proposed.

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Aluminium base material combined to other metal composite has been attempted many researchers in the modern era. In this research silicon carbide reinforced metal with aluminium (Al+SiC) and molybdenum di sulfide (Al+SiC+MoS 2 ). Reinforced metal fabricated by stir casting process and then various investigations like microscopic, hardness, tensile, ear test, impact test, bending test are used to analyse the mechanical properties for various applications. The result shows, the prepared material (Al+SiC) and (Al+SiC+MoS 2 ) are compared with each other based on the properties of the material it is taken for suitable applications.Index Terms -Aluminium metal matrix composites, silicon carbide, molybdenum di sulphide, mechanical properties.I. INTRODUCTION A composite material composed of very small to large contribution of different constituent. One constituent is Matrix Phase, and another is reinforcing phase. Matrix with reinforcing phase are attached for desired characteristics. Metal matrix constituents are very attractive materials, but these properties developed by adding of selected reinforcement. To attain higher performance, efficiency, reliability for light weight purpose along with cost effective Aluminum composites are used for various applications.Fabrication of liquid state metal matrix composites combine with dispersed phase of metal matrix lead by solidification for greater mechanical properties. Through the observation from published research related to aluminium metal matrix, is good attachment of Sic where it is physically stable at any temperature also good bonding strength, less cost to weight ratio it provides greater thermal conductivity. High demand in low weight aluminium material grow in manufacturing sector with good mechanical properties due to this new aluminium composites are developed in this same. More developed material like Al/SiC/Al 2 O 3 it has been in real applications. Current focus towards the introduction of Sic/Mos2 greater reinforcement comparatively remaining reinforcements. As for greater advantages of MoS2 like high solidification temperature, (200 0 -270 0 C) with good hardness (75 HRA or 820 HV) and greater modulus of rigidity (460x10 3 GPa). MoS 2 composition reveals that it stable in liquification, so it avoids the chances of formation of brittle structure. SiC impacts the reduction of 24% weight for any metals whereas constant mechanical properties. II. EXPERIMENTAL WORKIn the first specimen reinforcement of silicon carbide (SiC) has chosen. Molybendinum die sulfide reinforcement is taken as a second specimen aluminium 6082 is metal matrix phase both silicon carbide and molybdenum die sulfide metal matrix weight percentage is 10%. To remove hydrogen oxide and other contained gases silicon carbide preheated to 1000 0 C at the duration of 2 hour to obtain wettability. Molybdenum die sulfide is preheated upto 200 0 C. A matrix melt completely when furnace temperature raise to 750 0 C in this preheated stage silicon carbide of 2 grams, and manganese of 1gms added to impro...

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