Effects of rotation speed on the grinding process during high-speed diamond drilling by considering the metal matrix/rock chips interface

被引：0
|
作者：
Wang, Ying [1 ]
Gao, Mingyang [2 ]
Zhang, Kai [2 ]
Li, Yuxiao [2 ]
Li, Fuqiang [1 ]
Liu, Xiao [1 ]
机构：
[1] Third Explorat Team Shandong Coalfield Geol Bur, Tai An 271000, Peoples R China
[2] China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China
来源：
DISCOVER APPLIED SCIENCES | 2024年 / 6卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Impregnated diamond bit; Interface law; Stable grinding; Rotational speed; Three-body grinding; ROCK; WEAR; PERFORMANCE; PRESSURE; TOOLS; SIZE; BITS; LAWS;
D O I：
10.1007/s42452-024-06236-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this paper, the effect of rotation speed on the grinding process during the high-speed diamond drilling was studied by considering the metal matrix/rock chips interface. The results showed that when the grinding enters the Phase 3 (three-body wear among diamond, matrix, and rock cuttings), the weight-on-bit and frictional force exhibited significant periodicity. The two-body grinding process (Phase 1 and 2) was converted into a three-body grinding process (Phase 3). The results of the microscopic showed that the depth of each revolution became shallower, and the increasing proportion of primary chip was higher than that of the secondary chip as the speed increased at Phase 3. The increasing the rotational speed promotes the generation of primary chips and inhibits brittle fracture.
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页数：14
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