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Journal of the Brazilian Society of Mechanical Sciences and Engineering

Print version ISSN 1678-5878


GAITONDE, V. N.  and  KARNIK, S. R.. Selection of optimal process parameters for minimizing burr size in drilling using Taguchi's quality loss function approach. J. Braz. Soc. Mech. Sci. & Eng. [online]. 2012, vol.34, n.3, pp.238-245. ISSN 1678-5878.

The exit burr in drilling degrades the precision of products and causes additional cost of deburring. Therefore, it is essential to minimize burr size at the exit of holes in drilling at the manufacturing stage. Taguchi's quality loss function approach, a multi-response optimization method, has been employed to determine the best combination values of cutting speed, feed, point angle and lip clearance angle for specified drill diameters to simultaneously minimize burr height and burr thickness during drilling of AISI 316L stainless steel workpieces. The experiments were planned as per L9 orthogonal array and multi-response signal to noise (S/N) ratio was applied to measure the performance characteristics. Analysis of means (ANOM) and analysis of variance (ANOVA) were performed to determine the optimal levels and to identify the level of importance of parameters. The confirmation tests with the optimal levels of parameters were carried out to illustrate the effectiveness of Taguchi optimization.

Keywords : AISI 316L stainless steel; drilling; burr size; Taguchi's quality loss function; ANOVA.

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