Karuppasamy Ramasamy

• Master of Engineering
• Professor (Assistant) at Karpagam Academy of Higher Education

In this present study, the impact of axial force on the mechanical properties of friction stir welded dissimilar aluminium alloy joint was investigated. Four different axial forces such as 4kN, 5kN, 6kN, and 7kN were used. The tool rotating speed and welding speed of 2000 rpm and 60 mm/min respectively was employed. The microstructure of various zo...

In recent years, developments of new materials are finding more importance in various engineering applications the reason for this development is attributed to the needed for the lighter and stronger materials. The major advantage of lighter and stronger materials is that, it improves the efficiency of the parts made of materials without compromisi...

In solid state welding process, friction welding is the most comfortable technique in joining strategy of metal in various applications. In this research work, the base metal used in this research work is Al 7075 and Al6063 in a plate structure. Speed of tool (rpm), plunge depth (mm) and welding time (sec) are the input parameters and the desired o...

The worldwide demand for ultralight multifunctional material is increasing rapidly. One such material is honeycomb structured materials, which is however very costly. Metal foams, especially aluminium foam can be a possible replacement of such materials. Aluminium foam offers a unique combination of various properties as has been already discussed....

The objective of this research work is to manufacture lightweight aluminium cellular structure through stir casting and infiltration technique from base metal alloy aluminium A413. In stir casting technique, along with the molten base metal alloy foaming agent calcium carbonate (CaCO3) is mixed with different compositions, thorough mixing yielded m...

The aim of the present research is to develop a high performance self lubricating composite in economical way. Aluminium 7075 base matrix is reinforced with titanium carbide (TiC) and boron nitride (BN) through squeeze casting methodology to fabricate the composite. The weight percentage of primary reinforcement (TiC) in Aluminium matrix is varied...

Abstract: The objective of this research work is to manufacture lightweight aluminium cellular structure through stir casting and infiltration technique from base metal alloy aluminium A413. In stir casting technique, along with the molten base metal alloy foaming agent calcium carbonate (CaCO3) is mixed with different compositions, thorough mixing...

In the modern engineering world, the demand for novel materials is always high. The aluminium foam is the one of the widely used material. The researchers are concentrated to prepare the foam material with better cost effectiveness. The low density aluminium foam is produced using sand balls which are arranged in matrix form. The sand balls are mad...

o Aluminium bar is melted to its melting temperature (750°C). o The molten metal is stirred for several minutes. o The dolomite powder was pre heated up to 200 °C and it is mixed with the molten metal. o The foaming agent attains the decomposition temperature (660°C) the carbon dioxide (CO2) which is present in it will be emitted as CO2 gas. o The...

The intend of this work is to produce aluminium foam from aluminium (LM0) for the application of light weight structural components. Melt route method is the technique adapted. Here 2kgs of aluminium (LM0) is melted to its melting temperature (750°C) and 200g of preheated dolomite CaMg (CO3)2 was mixed to the molten metal and stirred for 30-90 seco...

Aluminium bar is melted to its melting temperature (750°C). o The molten metal is stirred for several minutes. o The dolomite powder was pre heated up to 200 °C and it is mixed with the molten metal. o The foaming agent attains the decomposition temperature (660°C) the carbon dioxide (CO2) which is present in it will be emitted as CO2 gas. o The un...

The machining parameters of any machining activity highly influence the surface nature of a component. The goal of this research work is to think about the impact of cutting fluid (SERVOCUT 'S' Grade oil emulsified with water) on the surface quality of LM6 Aluminium alloy cylindrical components. The turning operation was completed with TiN coated c...

Surface roughness (R) is an indication of product quality. Inferior surface finish is observed in piston rod after turned using CNC lathe. This results in poor product quality. The optimum set of cutting parameters to minimize the surface roughness in turning operation, using Genetic Algorithm (GA). The control parameters for the study included spe...