In this study, aluminum (Al-6070)/alumina (Al2O3) and Al-6070/graphite (Gr)-reinforced metal—matrix composites (MMCs) are fabricated by melt-stirring technique. The MMC bars and plates are prepared with varying the reinforced particles volume fraction ranging from 5% to 15%. The average reinforced particle sizes of alumina (Al 2O3) and graphite (Grp) are 23 and 53 μm, respectively. The stirring process was carried out at 200 rpm rotating speed by graphite impeller for 15 min. The microstructure and mechanical properties are investigated on prepared MMCs. It was observed that the hardness of the composite is increased with the increase in reinforced particle volume fraction. Both tensile strength and impact strength are decreased with increase in reinforced volume fraction. The prepared composite plates are welded by gas welding with Al—Si-base filler metal. Rockwell hardness test was conducted and the test result was presented for un-welded and welded zones.
In this study aluminum (Al-6070)/alumina (Al2O3), and Al-6070/ graphite (Gr) reinforced particles metal-matrix composites (MMCs) are fabricated by melt-stirring technique. The MMCs bars and plates are prepared with varying the reinforced particles volume fraction ranging from 5% to 15%. The average reinforced particles size of alumina (Al2O 3) and graphite (Grp) are 23 μm and 53 μm, respectively. The stirring process was carried out at 200 rev/min rotating speed by graphite impeller for 15 min. The microstructure and mechanical properties are investigated on prepared MMCs. It was observed that the hardness of the composite is increased with increasing of reinforced particle volume fraction. The tensile strength and impact strength both are decreased with rising of reinforced volume fraction. The prepared composite plates are welded by gas welding with Al-Si-base filler metal. Rockwell hardness test was conducted and presented the test result for un-welded and welded zone.
Squeeze casting was used to prepare aluminium alloy-6061/titanium diboride (TiB2) to create a composite with varied TiB2 quantities. The composite's metallographic structure, tensile strength, and hardness have been explored. The tensile strength and hardness of produced metal matrix composites increased when a particle of TiB2 was increased from 5 to 10 vol.%. This study uses electrical discharge machining (EDM) to investigate the output response tool wear rate (TWR). Variables in EDM operation were investigated, such as current, pulse on time, and voltage gap. The experiments were designed using the Box–Behnken strategy. Statistical approaches were used to analyse the experiments. At ideal settings for TiB2 concentrations of 5 and 10 vol.%, TWR was 0.2146 and 0.1749 mm3 min-1 and surface roughness was 2.47 and 3.03 µm, respectively. TiB2 is utilized in automobile disc brakes, an industry where components slide against each other. The aluminium alloy-6061/titanium diboride has many applications as a biomaterial and is a good prospect.
Metal matrix composites have exhibited better mechanical properties in comparison withconventional metals over an extensive range of working conditions. This makes them an appealing alternative in substituting metals for different applications. This paper gives a survey report, on machining of Aluminium metal Matrix composites (AMMC), particularly the molecule strengthened Aluminium metal matrix composites. It is an endeavour to give brief record of latest work to anticipate cutting parameters and surface structures in AMMC. The machinability can be enhanced by the utilization of Minimum Quantity Lubrication (MQL) during the machining of AMMC.
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