PDC 钻头切削齿布齿设计的新思路

摘要

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.%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。