Results 1 to 10 of about 18,049 (162)

Investigation of the Influence of Cutting Parameters on Conical Pick Cutting Performance and Rock Damage

Machines, 2022
Conical picks are applied to rock breaking, and the cutting parameters greatly influence cutting performance and rock damage. A conical pick rock-cutting numerical simulation model and software to provide a quantitative analysis of rock damage are ...
Zhiwen Wang, Qingliang Zeng, Lirong Wan, Zhenguo Lu, Hongbin Wang   +4 more
doaj   +3 more sources

Generalized equation for calculating rock cutting efficiency by pulsed water jets

Journal of Rock Mechanics and Geotechnical Engineering, 2019
One of the promising methods for rock cutting technology is the use of high-speed water jets. In order to improve the cutting capacity of water jets without increasing the hydraulic power of equipment, pulsed water jets are basically used to increase the
Andrey Polyakov, Aleksandr Zhabin, Eugene Averin, Aleksey Polyakov   +3 more
doaj   +3 more sources

CORRECT-Net: A Multimodal Vibration-Current Fusion Network for Coal-Rock Cutting State Recognition in Shearers. [PDF]

Sensors (Basel)
Zhao L, Zhang Z, Wang Y, Wu T, Hao J.
europepmc   +2 more sources

Numerical and experimental investigations on the rock-cutting mechanism of cylindrical PDC cutters and the influence of key parameters on cutting efficiency. [PDF]

Sci Rep
Xue D, Liao X, Zhang H, Wu H.
europepmc   +3 more sources

Rotary cutting tests and rock-breaking characteristics of triple-ridged PDC cutters in tight hard sandstones from Xujiahe Formation in Sichuan Basin in China. [PDF]

Sci Rep
He W, Li X, Zhang Z, Shi H, Chen H, Ma Q, Huang Z, Xiong C, Dong J, Li Y.   +9 more
europepmc   +3 more sources

Evaluation of Cutting Performance of a TBM Disc Cutter and Cerchar Abrasivity Index Based on the Brittleness and Properties of Rock

Applied Sciences, 2023
The brittleness of rock is known to be an important property that affects the fragmentation characteristics of rock in mechanized rock cutting. As the interaction between the cutting tool and the rock (i.e., cutter forces, cutting efficiency, s/p ratio ...
Hoyoung Jeong, Seungbeom Choi, Yong-Ki Lee   +2 more
doaj   +1 more source

Analysis of the Influence of Surrounding Rock State on Working Performance of Cutting Head in Metal Mining

Applied Sciences, 2023
Continuous mining is one of the development goals for metal mines, and the application of coal mining equipment represented by shearers provides a reference for continuous mining. However, rock in metal mines is generally harder than coal, making cutting
Weipeng Xu, Lirong Wan, Kuidong Gao, Yu Bu, Meng Xu, Shenghao Ma, Kao Jiang   +6 more
doaj   +1 more source

Research on Cutting Performance of Conical Pick Cutting Rock Plate with One Side Constrain and Three Sides Free

Science Progress, 2022
To improve the conical pick cutting performance by per cutting to the free surface. The cutting performance of rock and rock plate breaking are investigated by theoretical and experimental methods.
Zhenguo Lu, Hongbin Wang, Qingliang Zeng, Zhiwen Wang, Lirong Wan, Changjiang Li   +5 more
doaj   +1 more source

Fold catastrophe analysis of constitutive model of pick cutting coal with rock

Energy Reports, 2022
Considering the failure mechanism of pick cutting coal & rock, combined with the cutting load test, the single pick load of cutting coal & rock is obtained and analyzed,​ based on the load of single coal & rock caving load change process in ...
Chenxu Luo, Junbei Qiao, Jiawei Zhou, Zhijia Sun, Jun Cao   +4 more
doaj   +1 more source

Numerical Simulation of Conical Pick Cutting Arc Rock Plate Fracture Based on ANSYS/LS-DYNA

Advances in Materials Science and Engineering, 2020
The new method of rock breaking based on the combination of circular sawblade and conical pick was proposed to improve the effectiveness of hard rock breaking.
Zhiwen Wang, Qingliang Zeng, Zhenguo Lu, Lirong Wan, Xin Zhang, Guanshun Gao   +5 more
doaj   +1 more source