Machining studies of die cast aluminum alloy-silicon carbide composites |
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Authors: | Thambu Sornakumar Marimuthu Kathiresan |
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Institution: | (1) Central Mechanical Engineering Research Institute, CSIR, Durgapur, 713209, India;(2) National Institute of Technology, Durgapur, 713209, India;(3) Fraunhofer Institute for Production Technology, 52074 Aachen, Germany |
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Abstract: | Metal matrix composites (MMCs) with high specific stiffness, high strength, improved wear resistance, and thermal properties
are being increasingly used in advanced structural, aerospace, automotive, electronics, and wear applications. Aluminum alloy-silicon
carbide composites were developed using a new combination of the vortex method and the pressure die-casting technique in the
present work. Machining studies were conducted on the aluminum alloy-silicon carbide (SiC) composite work pieces using high
speed steel (HSS) end-mill tools in a milling machine at different speeds and feeds. The quantitative studies on the machined
work piece show that the surface finish is better for higher speeds and lower feeds. The surface roughness of the plain aluminum
alloy is better than that of the aluminum alloy-silicon carbide composites. The studies on tool wear show that flank wear
increases with speed and feed. The end-mill tool wear is higher on machining the aluminum alloy-silicon carbide composites
than on machining the plain aluminum alloy. |
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Keywords: | |
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