Determination of optimum parameters for surface roughness in CNC turning by using GRA-PCA

Abstract

In the current research, the CNC turning operation was implemented by employing the L 16 orthogonal arrays on the AA 6463 material, while the impact of the CNC turning process parameters, for instance, the feed rate, spindle speed, depth-of-cut, and coolant (dry and wet condition) are examined with a focus on two output objectives, Ra and Rz. The designed investigational outcomes are employed in GRA while the weights of the responses are calculated by using PCA. The outcome of confirmation trials exposes that GRA joined with PCA can excellently be employed to achieve the best grouping of turning factors. The output accomplishment measures viz., roughness of finished surface are estimated by defining grey relational grade and then the noteworthy contribution of factors are ascertained by ANOVA. In this examination, it was discovered that the generally significant process factor is the coolant, afterward feed rate, spindle speed and depth-of-cut on the selected response parameters.

Experimental Investigation on Al 6061 and Al 2024 Aluminium Alloys for Achieving Surface Roughness Using CNC Vertical Face Milling Process

“…Depth of cut, feed rate, and spindle speed are a few of the variables taken into account. The data are analysed using the MINITAB-18 programme and its numerous capabilities, including the Taguchi technique, and the S/N ratio is shown graphically [8]. The author M.Navaneethbalaji et al proposed The effective machining process and to predict the optimal choice for each parameters such as transverse speed, abrasive flow rate and standoff distance respectively is analysed in order to find the surface roughness of the materials [9].…”

Archive of Mechanical Engineering

“…If the P-value is lower than 0.05, the value is acceptable and significant. The same applies to the Fisher's test, if the F higher value is acceptable and significant [39,[54][55][56]. The assessment was done at a level of α = 0.05 (95% confidence interval) and Fisher's F-test was used to determine the situation in which the composite drilling parameter affects various performance aspects [57][58][59].…”