EFFECTS OF PROCESS PARAMETERS ON SURFACE ROUGHNESS IN CNC TURNING OF AA5083/SIC-TIO2 MC

In present work, an attempt has been made to experimental investigate the machinability of aluminum metal matrix composite during continuous turning of composite bars using carbide inserts. The aluminum metal matrix composite was fabricated by stir casting process. Base matrix material is Aluminum Alloy 5083 reinforced with 10wt% silicon carbide particles and 3wt % of TiO2 of mean diameter 20 μm to 40 μm is used. Experiments has been performed on CNC Turning center by using carbide insert at various cutting conditions and parameters such as cutting speed, feed and depth of cut and surface roughness was found at different levels. The effect of machining parameters, e.g. cutting speed and depth of cut on the surface roughness has been discussed.