首页|Cutting performance and contact behavior of partial-wear TBM disc cutters: A laboratory scale investigation
Cutting performance and contact behavior of partial-wear TBM disc cutters: A laboratory scale investigation
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NSTL
Elsevier
? 2022 Elsevier LtdThe rock cutting performance and cutter-rock contact behavior of partial-worn cutters are investigated via scaled rock cutting experiments. The results reveal that the partial-wear of the cutter reduces the normal force, while the tangential force increases. Changes are also observed in the rock breaking mechanism. Although the rock breaking capacity of the partial-worn cutters is not significantly reduced, the increase of volume ratio of the rock powder results in a rise in specific energy, indicating that the energy utilization of the partial-worn cutters is relatively low. In addition, plastic deformation and abrasive wear are observed on the partial-worn cutter surface. The changes of motion modes and surface geometry play a key role in the above-mentioned phenomena.
Contact behaviorDisc cutterPartial-wearRock cutting performanceScaling test
Sun R.、Mo J.、Zhang M.、Su Y.、Zhou Z.
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Institute of Tribology Research Southwest Jiaotong University
NSTL
Elsevier
