Optimization of drilling process variables using taguchi technique for LM6 aluminium alloySarla Rubi Charles, Udaya Prakash Jayavelu, Rajkumar Chinnaraj and Sachin SalunkheInt. J. Simul. Multidisci. Des. Optim., 13 (2022) 19DOI: https://doi.org/10.1051/smdo/2022008