Results 211 to 220 of about 43,494 (242)

CFD-DEM method is used to study the multi-phase coupling slag discharge flow field of gas-lift reverse circulation in drilling shaft sinking. [PDF]

Sci Rep
Guo L, Cheng H, Yao Z, Rong C, Wang Z, Wang X.   +5 more
europepmc   +1 more source

Optimization of Internal Chip Evacuation Cutting Tool System for Deep Bottle Holes Based on Chip Morphology Control. [PDF]

Materials (Basel)
Feng Y, Xu Z, Li W, Shi K, Zhang Y, Yang W.   +5 more
europepmc   +1 more source

Research on dynamic characteristics of cutter breaking frozen soil and optimal drum rotation speed of the new shaft tunneling machine. [PDF]

Sci Rep
Chen XM, Yang Z, Jiao HZ, Zhang JL, Wang J, Sun JY.   +5 more
europepmc   +1 more source

Characterization of particle exposure during tunnel excavation by tunnel boring machines. [PDF]

Ann Work Expo Health
Ervik TK, Leite M, Weinbruch S, Nordby KC, Ellingsen DG, Ulvestad B, Dahl K, Berlinger B, Skaugset NP.   +8 more
europepmc   +1 more source

Tribological Effects of Surface Biomimetic Micro-Nano Textures on Metal Cutting Tools: A Review. [PDF]

Biomimetics (Basel)
Sheng Z, Zhu H, He Y, Shao B, Sheng Z, Wang S.   +5 more
europepmc   +1 more source

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Rock cutting mechanism of special-shaped PDC cutter in heterogeneous granite formation

Journal of Petroleum Science and Engineering, 2022
Xiaohua Zhu, Yunxu Luo, Weiji Liu
exaly   +2 more sources

The rock-breaking performance of the special-shaped PDC cutter under combined penetration and cutting

Geoenergy Science and Engineering
Xiaohua Zhu, Yanfei Wang, Weiji Liu
exaly   +2 more sources

Investigation on the rock-breaking performance of specially-shaped PDC cutter under confining pressure conditions

Geoenergy Science and Engineering
Weiji Liu, Hongxing Deng, Xiaohua Zhu
exaly   +2 more sources

Study on Cutting Force of Diamond Cutter in Special-Shaped Stone Processing

Advanced Materials Research, 2011
The cutting force is the key factors influencing the processing precision and efficiency in special-shaped stone production. In this research, the cutting force is measured and analyzed in the process of special shaped cutter cutting stone. It is found that the relationship of cutting force with peripheral speed of cutter is nearly inverse proportional.
Bo Huang, Zeng Wen Liu
openaire   +1 more source

Rock-breaking performances of the special-shaped PDC cutter: insights from discrete element model

Journal of the Brazilian Society of Mechanical Sciences and Engineering
Xiaohua Zhu, Yanfei Wang, Weiji Liu
exaly   +2 more sources