西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (1): 171-175.

• 石油机械工程及其他 • Previous Articles     Next Articles

Research of Bit’s Performance Affected by the Cutting Angle of PDC

Zhang Shaohe1，2, Xie Xiaohong1,3, Wang Jialiang1   

  1. 1. College of Geology and Environmental Engineering，Central South University，Changsha，Hunan 410083，China2. The Ministry of Education Key Laboratory of non-ferrous metal ore forecast，Changsha，Hunan 410083，China3. Editorial Office Of Journal，China University Of Geosciences，Wuhan，Hubei 430074，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-02-01 Published:2012-02-01

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Abstract: To improve the PDC bit’s drilling performance，PDC is used to abrade rock in the lathe，and the effect of cutting
angle on PDC bit’s drilling performance is researched. Under the same stress，same rub distance，and five different group of
cutting angle，PDC abrasion volume are measured respectively. How the cutting angle affect the bit’s drilling performance is
analyzed with FEA（Finite Element Analysis）. The results indicate that，the smaller the cutting angle，the bigger the stress；
the bigger the abrasion volume，the larger the abrasion volume in the same node of the PDC，and the shorter the using life of
bit. That is to say，there is a best cutting angle for PDC bit.

Key words: PDC, cutting angle, drilling performance, abrasion volume, FEA

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