Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting
Abstract 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 ( ) with respect to the cutter velocity vector ( ) on both the contact stress ( ) and friction coefficient ( ) 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 by steps of . 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 with the plane strain elastic modulus and q the rock strength.
Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting
Abstract 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 ( ) with respect to the cutter velocity vector ( ) on both the contact stress ( ) and friction coefficient ( ) 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 by steps of . 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 with the plane strain elastic modulus and q the rock strength.
Experimental investigation on the effect of wear flat inclination on the cutting response of a blunt tool in rock cutting
Rostamsowlat, Iman (Autor:in) / Richard, Thomas (Autor:in) / Evans, Brian (Autor:in)
Acta Geotechnica ; 14 ; 519-534
05.05.2018
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Contact stress , Frictional contact , Friction coefficient , Rock cutting , Wear flat inclination angle Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
The model for tool wear in rock cutting
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Effect of Cutting Tool Properties and Depth of Cut in Rock Cutting: An Experimental Study
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Effect of Cutting Tool Properties and Depth of Cut in Rock Cutting: An Experimental Study
| Online Contents | 2018