Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/12879
Title: Cryogenic treatment of cutting tools
Authors: YONG YUN LEONG, ANDREW
Keywords: Cryogenic Treatment, Tungsten Carbide, Wear, Microstructure, Turning, Milling, Temperature
Issue Date: 15-Mar-2007
Source: YONG YUN LEONG, ANDREW (2007-03-15). Cryogenic treatment of cutting tools. ScholarBank@NUS Repository.
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.
URI: http://scholarbank.nus.edu.sg/handle/10635/12879
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Chapter 0 Preliminaries.pdf221.51 kBAdobe PDF

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Chapter 1 Introduction.pdf18.52 kBAdobe PDF

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Chapter 2 Literature Survey.pdf75.37 kBAdobe PDF

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Chapter 3 Programme.pdf30.68 kBAdobe PDF

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Chapter 4 Experimental Procedure.pdf785.78 kBAdobe PDF

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Chapter 5 Microstructure.pdf1.04 MBAdobe PDF

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Chapter 6 Mechanical Properties.pdf315.69 kBAdobe PDF

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Chapter 7 Turning.pdf72.47 kBAdobe PDF

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Chapter 8 Milling.pdf71.02 kBAdobe PDF

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Chapter 9 Temperature.pdf3.12 MBAdobe PDF

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Chapter 10 Performance.pdf30.59 kBAdobe PDF

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Chapter 11 Conclusions.pdf27.57 kBAdobe PDF

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Chapter 12 References.pdf21.41 kBAdobe PDF

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Chapter 13 Appendices.pdf2.95 MBAdobe PDF

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