Rock breaking modes under different cutting edge angles of axe drill teeth

LI Shangjie; ZHAO Xing; HUANG Jiqing; LIU Wei

doi:10.13394/j.cnki.jgszz.2021.6.0015

Volume 41 Issue 6

Dec. 2021

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LI Shangjie, ZHAO Xing, HUANG Jiqing, LIU Wei. Rock breaking modes under different cutting edge angles of axe drill teeth[J]. Diamond & Abrasives Engineering, 2021, 41(6): 85-90. doi: 10.13394/j.cnki.jgszz.2021.6.0015

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LI Shangjie, ZHAO Xing, HUANG Jiqing, LIU Wei. Rock breaking modes under different cutting edge angles of axe drill teeth[J]. Diamond & Abrasives Engineering, 2021, 41(6): 85-90. doi: 10.13394/j.cnki.jgszz.2021.6.0015

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Rock breaking modes under different cutting edge angles of axe drill teeth

doi: 10.13394/j.cnki.jgszz.2021.6.0015

1. Shenzhen Haimingrun Superhard Materials Co., Ltd., Shenzhen 518000, Guangdong, China;
2. Bohai Equipment Manufacturing Co., Ltd., China National Petroleum Corporation, Tianjin 300457, China;
3. MoE Key Laboratory of Petroleum Engineering, University of Petroleum (Beijing), Beijing 102249, China

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Rev Recd Date: 2021-10-12

Available Online: 2022-04-07

Abstract

Abstract

To further study the rock-breaking mechanism of the axe blade PDC cutter, a 3D finite element model of the dynamic rock breaking of the PDC cutter was established, and a comparative study of three axe cutters with different angles was evaluated. The result shows that the blade with 135° has higher shearing force and cutting force compared to those of cutters with 150° and 165°, which results in a higher efficiency on rock breaking. It is also found that with the same back rake angle, cutting depth and cutting force, the axe blade with 165° cutting edge shows a smaller fluctuation than those of others. Compared with the data collected from vertical lathe (VTL), the trend of simulation results matches with the experiment one and the deviations between experiment and finite element analysis (FEA) can be accepted.
- axe type PDC drill teeth,
- finite element analysis,
- simulation of single blade cutting,
- laboratorial vertial lathe experiment

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沈阳化工大学材料科学与工程学院沈阳 110142

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Rock breaking modes under different cutting edge angles of axe drill teeth

doi: 10.13394/j.cnki.jgszz.2021.6.0015

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Rock breaking modes under different cutting edge angles of axe drill teeth

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