沙溪庙组硬质砂岩地层异形PDC齿的设计与研究
马亚超,罗逸非,荣准,陶垒,曾汇川,蒋东,张文远

Design and study of special-shaped PDC cutter for hard sandstone strata of Shaximiao Formation
Yachao MA,Yifei LUO,Zhun RONG,Lei TAO,Huichuan ZENG,Dong JIANG,Wenyuan ZHANG
图21 PDC齿的平均切削力对比
Fig.21 Comparison of average cutting force of PDC cutters