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Essay On Surface Roughness

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LITERATURE REVIEW
2.1 INTRODUCTION
In this chapter, there will be three parts of literature review which will cover the study of the surface roughness, the study regarding the water droplet impact on a heated surface and also reviews of any related past studies that has been done over the years. The focus of this chapter is to give good understanding and clear view about each aspects that contribute to this final year project. At the end of this chapter, a summary will be made which will conclude the previous knowledge about this study.
2.2 SURFACE ROUGHNESS
2.2.1 BACKGROUND
Study of surface roughness has been carried out since years as the surface roughness is one of the important aspects in evaluating the quality of a ground component[1].

Surface roughness is the measure of minutely spaced irregularities produced during manufacturing process[2]. This is supported by Svetovoy which states that it occurs in various processes and it is quite difficult to avoid and control[3]. Furthermore, this matter has been confirmed earlier by, that even though the roughness of a material is usually undesirable, it is very hard and requires large cost in order to control it during the manufacturing process. Decreasing the surface roughness will exponentially …show more content…

Furthermore, surface roughness is one of the factors that affect the properties of a material[6].

2.2.2 PARAMETERS FOR DROPLET IMPACT TEST
In this study, the parameters affecting the surface roughness are different than the parameters affecting the surface roughness during material removal process. According to Oka (2007), the factors affecting surface roughness during droplet impact are stand-off distance between the surface and the water dropper, the velocity of the droplet and also the drop frequency[7].

2.3STUDIES REGARDING WATER DROPLET IMPACT ON A HEATED

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