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6 圆弧半径不同的圆弧曲面齿

Fig.6 Circular-arc curved-surface cutters with different arc radii