Ultrasonically assisted drilling of rocks
conference contributionposted on 17.07.2018 by N.V. Mikhailova, P.Y. Onawumi, Anish Roy, Vadim Silberschmidt
Any type of content contributed to an academic conference, such as papers, presentations, lectures or proceedings.
Conventional drilling of rocks can generate significant damage in the drilled material; a material layer is often split off a back surface of a sample during drilling, negatively affecting its strength. To improve finish quality, ultrasonically assisted drilling (UAD) was employed in two rocks - sandstone and marble. Damage areas in both materials were reduced in UAD when compared to conventional drilling. Reductions in a thrust force and a torque reduction were observed only for UAD in marble; ultrasonic assistance in sandstone drilling did not result in improvements in this regard.
This research was supported by the FP7 IRSES project TAMER IRSES-GA-2013-610547.
- Mechanical, Electrical and Manufacturing Engineering