Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting
A vast majority of experimental researches focuses on the cutting action of a sharp cutter, while there has been limited experimental work devoted to the study of the contact process at the wear flat-rock interface. The specific objective of this study is to determine the effect of the wear flat inc...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/69831 |
| _version_ | 1848762145775288320 |
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| author | Rostamsowlat, I. Richard, T. Evans, Brian |
| author_facet | Rostamsowlat, I. Richard, T. Evans, Brian |
| author_sort | Rostamsowlat, I. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A vast majority of experimental researches focuses on the cutting action of a sharp cutter, while there has been limited experimental work devoted to the study of the contact process at the wear flat-rock interface. The specific objective of this study is to determine the effect of the wear flat inclination angle ( β ) with respect to the cutter velocity vector ( vv ) on both the contact stress ( σ ) and friction coefficient ( μ ) mobilized at the wear flat-rock interface. An extensive and comprehensive set of cutting experiments was carried out on thirteen different sedimentary quarry rock samples using a state-of-the-art rock cutting equipment. A unique cutter holder was purposely designed and manufactured along with a precise experimental protocol implemented in order to change the back rake angle and therefore the inclination β by steps of 0.10∘ . The experimental observations confirm the existence of three regimes of frictional contact (identified as elastic, elasto-plastic and plastic) for all rock samples. Further, the results suggest that the scaled contact stress is predominantly controlled by a dimensionless number η=E∗tanβq with E∗ the plane strain elastic modulus and q the rock strength. |
| first_indexed | 2025-11-14T10:42:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-69831 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:55Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-698312020-06-02T00:38:46Z Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting Rostamsowlat, I. Richard, T. Evans, Brian A vast majority of experimental researches focuses on the cutting action of a sharp cutter, while there has been limited experimental work devoted to the study of the contact process at the wear flat-rock interface. The specific objective of this study is to determine the effect of the wear flat inclination angle ( β ) with respect to the cutter velocity vector ( vv ) on both the contact stress ( σ ) and friction coefficient ( μ ) mobilized at the wear flat-rock interface. An extensive and comprehensive set of cutting experiments was carried out on thirteen different sedimentary quarry rock samples using a state-of-the-art rock cutting equipment. A unique cutter holder was purposely designed and manufactured along with a precise experimental protocol implemented in order to change the back rake angle and therefore the inclination β by steps of 0.10∘ . The experimental observations confirm the existence of three regimes of frictional contact (identified as elastic, elasto-plastic and plastic) for all rock samples. Further, the results suggest that the scaled contact stress is predominantly controlled by a dimensionless number η=E∗tanβq with E∗ the plane strain elastic modulus and q the rock strength. 2018 Journal Article http://hdl.handle.net/20.500.11937/69831 10.1007/s11440-018-0674-1 fulltext |
| spellingShingle | Rostamsowlat, I. Richard, T. Evans, Brian Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title | Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title_full | Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title_fullStr | Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title_full_unstemmed | Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title_short | Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| title_sort | experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting |
| url | http://hdl.handle.net/20.500.11937/69831 |