Effect of cutting parameter on roughness during surface grinding of inconel 718

Yaakob, Nurul Afizan (2015) Effect of cutting parameter on roughness during surface grinding of inconel 718. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 pages) Effect Of Cutting Parameter On Roughness During Surface Grinding Of Inconel 718 24 Pages.pdf - Submitted Version Download (468kB)
	Text (Full text) Effect of Cutting Parameter on Roughness During Surface Grinding of Inconel 718.pdf - Submitted Version Restricted to Repository staff only Download (1MB)

Abstract

Surface grinding is a finishing process where it will give the surface roughness of the product lower than before. By this process, smooth surface can be produced. In order to do this process, surface grinding machine is used. The parameters that are variable in order to get the smoother surface roughness are traverse speed, depth of cut and number of passes. The surface roughness is identified by using portable surface roughness machine. The surface of the material look closer by using a stereo microscope. In this experiment, there are 19 runs. Historical data under Response Surface Methodology (RSM) is used to construct and analyze the data. Analysis of variance (ANOVA) is used in order to look for the trend of the parameter towards the surface roughness. After the analysis is done, the parameters can be known whether it is significant or non-significant. A factor that is significant and not significant has been identified. Traverse speed and depth of cut are significant factors while the number of passes is not a significant factor in this experiment. A model is created after a trend have been developed. In order to know whether the model is valid to use, validation of the model is done. The number of errors produced is indicated whether the model is valid or not. The model was valid as the error from actual value and predicted value of surface roughness is 9.86%, which is less than the maximum acceptable error. The future surface roughness can be predicted by insert the parameters into the model. The optimum response were achieved by traverse speed of 9173 mm/min, depth of cut of 7 μm, and 10 number of passes. From this experiment, Inconel 718 can have low surface roughness even though it is difficult to machine.

Actions (login required)

View Item