Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/12879
DC Field | Value | |
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dc.title | Cryogenic treatment of cutting tools | |
dc.contributor.author | YONG YUN LEONG, ANDREW | |
dc.date.accessioned | 2010-04-08T10:28:02Z | |
dc.date.available | 2010-04-08T10:28:02Z | |
dc.date.issued | 2007-03-15 | |
dc.identifier.citation | YONG YUN LEONG, ANDREW (2007-03-15). Cryogenic treatment of cutting tools. ScholarBank@NUS Repository. | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/12879 | |
dc.description.abstract | This study evaluates the performance of cryogenically treated tungsten carbide cutting tools and the mechanism responsible for their improved wear resistance. Experiments show that the treated tools show better wear resistance during the initial part of cutting, but deteriorates as time progresses. Other experiments involving temperature analysis of the cutting edge show that a threshold temperature exists for the cryogenically treated tungsten carbide tools. If this temperature is exceeded during cutting operations, the treated tool loses its improved wear resistance. This phenomenon where the wear resistance is diminished during cutting has not been observed with other cryogenically treated products. Microstructural studies show that the binder phase in these tools increase in size and quantity after cryogenic treatment and is suspected to be responsible for the improved wear resistance. A reduction in the thermal conductivity of the treated tools also suggests that the binder phase increases in quantity after treatment. | |
dc.language.iso | en | |
dc.subject | Cryogenic Treatment, Tungsten Carbide, Wear, Microstructure, Turning, Milling, Temperature | |
dc.type | Thesis | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.contributor.supervisor | SEAH KAR HENG | |
dc.contributor.supervisor | RAHMAN, MUSTAFIZUR | |
dc.description.degree | Ph.D | |
dc.description.degreeconferred | DOCTOR OF PHILOSOPHY | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Ph.D Theses (Open) |
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Files in This Item:
File | Description | Size | Format | Access Settings | Version | |
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Chapter 0 Preliminaries.pdf | 221.51 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 1 Introduction.pdf | 18.52 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 2 Literature Survey.pdf | 75.37 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 3 Programme.pdf | 30.68 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 4 Experimental Procedure.pdf | 785.78 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 5 Microstructure.pdf | 1.04 MB | Adobe PDF | OPEN | None | View/Download | |
Chapter 6 Mechanical Properties.pdf | 315.69 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 7 Turning.pdf | 72.47 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 8 Milling.pdf | 71.02 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 9 Temperature.pdf | 3.12 MB | Adobe PDF | OPEN | None | View/Download | |
Chapter 10 Performance.pdf | 30.59 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 11 Conclusions.pdf | 27.57 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 12 References.pdf | 21.41 kB | Adobe PDF | OPEN | None | View/Download | |
Chapter 13 Appendices.pdf | 2.95 MB | Adobe PDF | OPEN | None | View/Download |
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