Green sand casting is treated as the most versatile casting process due to their excellent design flexibility that offer complex shapes and ability to reclaim silica sand. The modern foundries are looking for alternate moulding materials to partially replace the high cost silica sand. Cow dung is a naturally available eco-friendly binding as well as additive material and is used to partially replace the silica sand. Improper choice of the combination of moulding sand variables, such as degree of ramming, percentage of cow dung, percentage of clay, and percent of water will affect the moulding sand properties and thereby quality of casting. In the present work, Taguchi method is employed to plan and conduct experiments. Pareto analysis of variance is performed to know the contribution of variables on the moulding sand properties (i.e. compression strength, permeability, loss-on-ignition). Taguchi DEAR method is used to determine the single optimal levels of input factors that enhances the performances of all the sand mould properties. Percent of clay and cow-dung found to be the most dominating factor towards all the sand mould properties.
Drilling is a complex manufacturing process used for producing hole on engineering materials. Hole produced and followed by its quality parameters such as surface roughness and circularity to declare its quality. In this work, drilling process is carried out on titanium alloy using carbide drill. The input parameters considered in the work include cutting speed and feed rate and the output parameters include are surface roughness, circularity and diameter error. Three set of drilling process parameters are used to carry out experiments and the output parameters are measured by surface roughness tester and coordinate measuring machine. The result concluded that the feed rate and followed by cutting speed influencing the surface roughness, low circularity error is observed with higher cutting speed due to dynamic stability and also at higher cutting speed lower hole diameter error is observed due to reduced interfacial friction. This quality parameter analysis is used for increasing assembly accuracy of drilled hole.
-The main purpose of my project is to study the types of cylinders and their firing order and also to fabricate the prototype of a 4-stroke four cylinder engine. The four stroke engine mainly divided into 2 types based upon their use of fuels. (i.e., petrol and diesel).Based on the volume(cc) of an engine the cylinders are manufactured, and are classified into different types in-line, vtype, horizontal, w-type, and radial cylinders. the firing orders are different for different types of cylinders and were given correct orders to overcome from vibrations and from superheated zone.The various process involved in the fabrication of prototype are raw material cutting, grinding and machining. Under this processes like lathe machine and their application process, chamfering and tapering etc is done respectively. The arc welding is used to fabricate the mildsteel (M.S.) prototype of four stroke four cylinder engine.these are widely used in ships, locomotives and other automotives.
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