A experimental study on the loads and temperature acting on the shaft of a disc cutter during linear rock cutting test

Polycrystalline diamond compact (PDC) cutters, as a major cutting tool, have been widely applied in oil and gas drilling processes. The understanding of the complex interactions at the rock and cutter interfaces is essential for the advancement of future drilling technologies; yet, these interactions are still not fully understood. Linear cutting of rock, among all the testing methods, avoids the geometric and process complexities and offers the most straightforward way to reveal the intrinsic mechanisms of rock cutting. Therefore, this paper presents an experimental study of the cutter’s cutting performance and the rock’s failure behaviors on a newly developed linear rock cutting facility. A series of rock cutting tests were designed and performed. The acquired experimental data was analyzed to investigate the influences of process parameters and the rock’s mechanical properties on chip formation and force responses.

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Experimental Study on Wear Behaviors of TBM Disc Cutter Ring in Hard Rock Conditions

Tribology Transactions ◽

10.1080/10402004.2018.1442895 ◽

2018 ◽

Vol 61 (5) ◽

pp. 920-929 ◽

Cited By ~ 8

Author(s):

Laikuang Lin ◽

Yimin Xia ◽

Qingsong Mao ◽

Xuhui Zhang

Keyword(s):

Experimental Study ◽

Hard Rock ◽

Disc Cutter

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Simulation and Experimental Study on Coal and Rock Cutting Test Equipment Hydraulic Feed System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.687-691.463 ◽

2014 ◽

Vol 687-691 ◽

pp. 463-467

Author(s):

Shu Lin Zhu ◽

Shi Bo Wang ◽

Xue Zhi Wang ◽

Xue Feng Li ◽

Mu Xing Ji

Keyword(s):

Cutting Parameters ◽

Hydraulic Cylinder ◽

Rock Cutting ◽

Test Equipment ◽

Feed System ◽

Proportional Valve ◽

Cutting Test ◽

Pump Station ◽

Voltage Signal ◽

Test Requirements

In order to control the speed of hydraulic cylinder precisely through a given voltage signal on proportional valve, we adopt the pressure compensator and proportional directional valves throttle circuit in the hydraulic feed system of the designing coal and rock cutting test equipment. The simulation model of the system based on AMESim is built, the dynamic characteristic on the feed system of proportional valve-controlled cylinder’s speed is analyzed, experiments under no-loading condition on the hydraulic pump station is done. Simulation and experimental results show that the cylinder’s speed can be controlled precisely through a given voltage signal on proportional valve, the experimental and simulation results are close, which can better meet the test requirements of coal and rock cutting. Finally the sorting curves of the cylinder’s speed varies with the proportional valve opening can provide the basis of cutting parameters of coal and rock cutting test equipment.

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