Abstract
The best practice to obtain a high-quality hole drilling is to minimize the delamination factor during the drilling process. This can be assured by correctly selecting the appropriate process parameters. The most significant parameters affecting the performance response are feed rate (f), spindle speed (N) and drill diameter (d). The current study aims to identify appropriate tools for drilling the hybrid jute/cork biosandwich based on multi-objective response surface methodology (RSM) and genetic algorithm (GA). The work aims to optimize the drilling parameters for minimizing the delamination factor of two tools, one made from High Speed Steel (HSS) and the other made from High Speed Steel covered with Titanium Nitride (HSS-TiN). The results revealed that the HSS-TiN tool is the more suitable to achieve a minimum delamination of 1.165 compared to the HSS tool (1.214 and 1.249 obtained by RSM and GA, respectively), with 50 mm/min feed rate, 1800 rpm spindle speed and a 5-mm diameter.