Evaluation of normal forces at varying cutting angles of conical picks on sandstones
Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force...
Ausführliche Beschreibung
Autor*in: |
Wang, Xiang [verfasserIn] Su, Okan [verfasserIn] Gao, Kui-dong [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Schlagwörter: |
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Anmerkung: |
© Saudi Society for Geosciences 2021 |
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Übergeordnetes Werk: |
Enthalten in: Arabian journal of geosciences - Berlin : Springer, 2008, 14(2021), 7 vom: 17. März |
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Übergeordnetes Werk: |
volume:14 ; year:2021 ; number:7 ; day:17 ; month:03 |
Links: |
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DOI / URN: |
10.1007/s12517-021-06924-8 |
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Katalog-ID: |
SPR043533493 |
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520 | |a Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. | ||
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700 | 1 | |a Gao, Kui-dong |e verfasserin |4 aut | |
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10.1007/s12517-021-06924-8 doi (DE-627)SPR043533493 (SPR)s12517-021-06924-8-e DE-627 ger DE-627 rakwb eng 550 ASE Wang, Xiang verfasserin aut Evaluation of normal forces at varying cutting angles of conical picks on sandstones 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Saudi Society for Geosciences 2021 Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 Su, Okan verfasserin aut Gao, Kui-dong verfasserin aut Enthalten in Arabian journal of geosciences Berlin : Springer, 2008 14(2021), 7 vom: 17. März (DE-627)572421877 (DE-600)2438771-X 1866-7538 nnns volume:14 year:2021 number:7 day:17 month:03 https://dx.doi.org/10.1007/s12517-021-06924-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 14 2021 7 17 03 |
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10.1007/s12517-021-06924-8 doi (DE-627)SPR043533493 (SPR)s12517-021-06924-8-e DE-627 ger DE-627 rakwb eng 550 ASE Wang, Xiang verfasserin aut Evaluation of normal forces at varying cutting angles of conical picks on sandstones 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Saudi Society for Geosciences 2021 Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 Su, Okan verfasserin aut Gao, Kui-dong verfasserin aut Enthalten in Arabian journal of geosciences Berlin : Springer, 2008 14(2021), 7 vom: 17. März (DE-627)572421877 (DE-600)2438771-X 1866-7538 nnns volume:14 year:2021 number:7 day:17 month:03 https://dx.doi.org/10.1007/s12517-021-06924-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 14 2021 7 17 03 |
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10.1007/s12517-021-06924-8 doi (DE-627)SPR043533493 (SPR)s12517-021-06924-8-e DE-627 ger DE-627 rakwb eng 550 ASE Wang, Xiang verfasserin aut Evaluation of normal forces at varying cutting angles of conical picks on sandstones 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Saudi Society for Geosciences 2021 Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 Su, Okan verfasserin aut Gao, Kui-dong verfasserin aut Enthalten in Arabian journal of geosciences Berlin : Springer, 2008 14(2021), 7 vom: 17. März (DE-627)572421877 (DE-600)2438771-X 1866-7538 nnns volume:14 year:2021 number:7 day:17 month:03 https://dx.doi.org/10.1007/s12517-021-06924-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 14 2021 7 17 03 |
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10.1007/s12517-021-06924-8 doi (DE-627)SPR043533493 (SPR)s12517-021-06924-8-e DE-627 ger DE-627 rakwb eng 550 ASE Wang, Xiang verfasserin aut Evaluation of normal forces at varying cutting angles of conical picks on sandstones 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Saudi Society for Geosciences 2021 Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 Su, Okan verfasserin aut Gao, Kui-dong verfasserin aut Enthalten in Arabian journal of geosciences Berlin : Springer, 2008 14(2021), 7 vom: 17. März (DE-627)572421877 (DE-600)2438771-X 1866-7538 nnns volume:14 year:2021 number:7 day:17 month:03 https://dx.doi.org/10.1007/s12517-021-06924-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 14 2021 7 17 03 |
allfieldsSound |
10.1007/s12517-021-06924-8 doi (DE-627)SPR043533493 (SPR)s12517-021-06924-8-e DE-627 ger DE-627 rakwb eng 550 ASE Wang, Xiang verfasserin aut Evaluation of normal forces at varying cutting angles of conical picks on sandstones 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Saudi Society for Geosciences 2021 Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 Su, Okan verfasserin aut Gao, Kui-dong verfasserin aut Enthalten in Arabian journal of geosciences Berlin : Springer, 2008 14(2021), 7 vom: 17. März (DE-627)572421877 (DE-600)2438771-X 1866-7538 nnns volume:14 year:2021 number:7 day:17 month:03 https://dx.doi.org/10.1007/s12517-021-06924-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 14 2021 7 17 03 |
language |
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Enthalten in Arabian journal of geosciences 14(2021), 7 vom: 17. März volume:14 year:2021 number:7 day:17 month:03 |
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Enthalten in Arabian journal of geosciences 14(2021), 7 vom: 17. März volume:14 year:2021 number:7 day:17 month:03 |
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Normal force Rock cutting angles Linear cutting machine Conical pick |
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Arabian journal of geosciences |
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Wang, Xiang @@aut@@ Su, Okan @@aut@@ Gao, Kui-dong @@aut@@ |
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2021-03-17T00:00:00Z |
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The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. 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|
author |
Wang, Xiang |
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Wang, Xiang ddc 550 misc Normal force misc Rock cutting angles misc Linear cutting machine misc Conical pick Evaluation of normal forces at varying cutting angles of conical picks on sandstones |
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550 ASE Evaluation of normal forces at varying cutting angles of conical picks on sandstones Normal force (dpeaa)DE-He213 Rock cutting angles (dpeaa)DE-He213 Linear cutting machine (dpeaa)DE-He213 Conical pick (dpeaa)DE-He213 |
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ddc 550 misc Normal force misc Rock cutting angles misc Linear cutting machine misc Conical pick |
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ddc 550 misc Normal force misc Rock cutting angles misc Linear cutting machine misc Conical pick |
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Evaluation of normal forces at varying cutting angles of conical picks on sandstones |
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Evaluation of normal forces at varying cutting angles of conical picks on sandstones |
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Wang, Xiang |
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Arabian journal of geosciences |
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Arabian journal of geosciences |
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Wang, Xiang Su, Okan Gao, Kui-dong |
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10.1007/s12517-021-06924-8 |
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verfasserin |
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evaluation of normal forces at varying cutting angles of conical picks on sandstones |
title_auth |
Evaluation of normal forces at varying cutting angles of conical picks on sandstones |
abstract |
Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. © Saudi Society for Geosciences 2021 |
abstractGer |
Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. © Saudi Society for Geosciences 2021 |
abstract_unstemmed |
Abstract In mechanical excavation, the response of the tool forces on the cutterhead is important when the excavation begins in actual cutting conditions because the reliability and efficiency of the cutting machine are influenced directly by the pick performance. The magnitude of the cutting force is utilized to estimate the specific energy, which is calculated from experimental tests to predict the performance of a mechanical excavation machine. However, the magnitude of normal force is also the other key parameter that used to calculate the load of the work unit of excavation machine. Therefore, based on linear rock cutting experiments performed on the low and high strength sandstones, the variation of the normal force and the variation of ratio of normal force to cutting force have been investigated under different cutting angles. The influence of related cutting angles, which have some direct or indirect effects on the normal force, has been discussed in detail. In this context, the attack angles lower than 80°, preferably between 50 and 60°, the clearance angle lower than 10°, resulted in a decrease on the normal forces. Besides, the positive values of rake angles led to more efficient cutting. Furthermore, it was suggested to employ the conical picks having the tip angles lower than 80° in order to obtain optimum cutting conditions. The certain ranges of the relevant angles exhibited the same characteristic both on low and high strength sandstones. As a result, the empirical models, which were found to be statistically significant, were put forward. These results would be essential for the design of the pick and cutterhead. © Saudi Society for Geosciences 2021 |
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title_short |
Evaluation of normal forces at varying cutting angles of conical picks on sandstones |
url |
https://dx.doi.org/10.1007/s12517-021-06924-8 |
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author2 |
Su, Okan Gao, Kui-dong |
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Su, Okan Gao, Kui-dong |
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10.1007/s12517-021-06924-8 |
up_date |
2024-07-03T19:16:59.302Z |
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|
score |
7.400098 |