PD C钻头的力学分析是钻头工作性能预测分析的基础。
PDC bit mechanics analysis is the foundation of the working performance prediction and analysis of the bit.
三牙轮钻头结构复杂，其中齿面结构直接与地层接触，对于岩石破碎过程和钻头工作性能的影响最大。
The structure of tri-cone rock bit is complicated. As the cutting structure touch the stratum directly, it affects the process of breaking rock and the performance of tri-cone rock bit.
钢齿牙轮钻头增强了工作的平稳性，降低了牙齿的冲击载荷，使牙轮钻头的耐磨性能得到提高；
Steel tooth bit can increase the bit's stability and lower the tooth impact load, and enhance its wear resistance.
牙轮钻头是钻井工程中最主要的破岩工具，其工作性能的好坏直接影响钻井质量、钻井效率和钻井成本。
The operating performance quality of the roller bit, which is the most main broken crag tool, directly influence the well drilling quality, well drilling efficiency and well drilling cost.
合理的布齿是保证PD C钻头有优良工作性能的关键。
It is the key to ensure that PDC bit has choiceness of the work performance to reasonably place cutting.
采用修形技术改善了这种应力分布状态，为轴承结构的优化提供理论依据，进一步提高钻头的工作性能；
Using the technique of modification improved the stress distribution, which provides the theory basis for bearing structure optimization, further improved the performance of bits.
采用修形技术改善了这种应力分布状态，为轴承结构的优化提供理论依据，进一步提高钻头的工作性能；
Using the technique of modification improved the stress distribution, which provides the theory basis for bearing structure optimization, further improved the performance of bits.
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