New Idea of Cutting Teeth Arrangement Design for PDC Rock Bit
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摘要: 切削齿布齿设计是PDC钻头设计的关键。为提高PDC钻头的钻进效率,综合考虑PDC钻头切削齿的设计特点和切削先后顺序等因素,并且通过对PDC钻头单切削齿实验结果进行分析,提出了以冠部轮廓法线为基准的切削齿布齿设计方法。Abstract: Cutting teeth arrangement is the key of PDC rock bit design, in order to improve the drilling efficiency, the de-sign features of cutting teeth of PDC bit, the cutting order and some other factors are taken into account;by the analysis on the experimental results of PDC bit single tooth, a new design method of cutting teeth arrangement is put forward, which is based on crown surface normal line.
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Key words:
- PDC bit /
- cutting teeth arrangement /
- cutting teeth /
- crown surface normal line
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