【摘要】 牙齿刮切实验是“牙轮钻头与岩石互作用仿真”课题的基础实验研究工作。西南石油学院钻头研究室针对不同岩石、不同齿形的硬质合金牙齿,进行了大量的牙齿刮切破岩实验。以楔形齿和锥形齿为例提出了牙齿刮切破碎坑几何模型的建模过程,并简要介绍了获取破碎坑几何模型特征参数的方法。更多还原

【Abstract】 Several groups of scraping tests for rock by single insert are made. The conical and chisel inserts and dolomite,limestone,sandstone,shale are involved in the tests. The tests are performed by Rock Bit Lab of South- west Petroleum Institute. The principle of tests,the method of geometric modeling,which is important for computer simulation research on rock-bit penetrating procedure,and the interpretation of scraping test data are all presented. Some related problems are also discussed.更多还原