Parametric optimization in drilling of Bamboo/Basalt hybrid composite

Abstract

In recent years, natural fiber reinforced composites have captured the attention of the researcher due to their specific properties, non carcinogenic and bio-degradable nature. Bamboo and Basalt are the example of some such material, which are cost effective and having excellent mechanical properties comparable to uni-directional glass reinforced plastic. Drilling is a machining operation that is often used for making holes to facilitate the assembly of parts. However, drilling is often associated with damage like delamination and other cutting parameters. In the present investigation, Taguchi L9 orthogonal array with grey relational analysis has been performed to determine the optimum combination of process parameters to minimize delamination factor and maximize tensile strength. ANOVA analysis is also performed. The results revealed that the cutting speed and feed rate are the two important parameters that make largest contribution to the delamination and tensile strength. Confirmation experiments are performed to verify the predicted results with the experimental results.