Dynamics of ultrasonic percussive drilling of hard rocks
作者： M. Wiercigroch , J. Wojewoda , A.M. Krivtsov
DOI: 10.1016/J.JSV.2003.12.045
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摘要: Ultrasonic percussive drilling with diamond-coated tools has been extensively studied under laboratory conditions on rocks such as sandstone, limestone, granite and basalt, in order to investigate the applicability of this technique to downhole drilling. An experimental set-up, a programme of work and example results are presented. The studies showed that an introduction of high-frequency axial vibration significantly enhances drilling rates compared to the traditional rotary type method. It has been found out that the material removal rate …
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