L. VENUGOPAL, M.j. DAVİDSON, N. Selvaraj -

Analysis of tube end forming process using Taguchi design of experiments

In this study, the Taguchi method is used to find the optimum process parameters for maximum expansion of tube ends. The various process parameters namely the punch/die cone angle, the expansion ratio and the friction conditions are taken as the input process condition and the output; the maximum radial displacement is critically analyzed. Radial expansion is the increase in diameter of the tube by the die measured on the top most portion of the tube across its circumference. The optimal combination of the process parameters is obtained through the signal to noise ratio (S/N) analysis and the analysis of variance (ANOVA) methods. The parameters that affect the process are determined using Taguchi method and the most significant process parameters and their percentage contribution was determined by using ANOVA technique. Among all the three process parameters considered, it is found that the most significant factor is the die cone angle (α) and this factor contributes 43.56% on the total output response value while expansion ratio rp/r0 contributes 8.89% and the lubricant has contributed 38.59% on the total output. The experimental results are in acceptance with the predicted values for the 95% confidence interval and it is observed that the error is within the reasonable limit.

Anahtar Kelimeler:

Tube end expansion, Taguchi analysis, ANOVA, AA6061 tubes

Analysis of tube end forming process using Taguchi design of experiments

Keywords:

Tube end expansion, Taguchi analysis, ANOVA, AA6061 tubes,

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