Optimization of machining parameters in drilling of LM6/B4C/Fly ash hybrid compositesJayavelu Udaya Prakash, Charles Sarala Rubi, Sivaprakasam Palani, Sunder Jebarose Juliyana and Arasumugam Divya SadhanaManufacturing Rev., 9 (2022) 28DOI: https://doi.org/10.1051/mfreview/2022026