Deshpande, Y. V.; Barve, P. S.; Madankar, T. A.; Pund, S. S. OPTIMIZATION OF SURFACE ROUGHNESS AND CONE ANGLE IN AWJ MACHINING OF AIRCRAFT MATERIAL USING RSM: Received: 14th October 2021; Revised: 29th December 2021, 11th February 2022, 15th February 2022; Accepted: 17th February 2022. mijst 2022, 8, 17-32.