ISIS Neutron and Muon Source Data Journal

The effect of manufacturing conditions on residual stress in polycrystalline diamond cutters

Abstract: Polycrystalline diamond cutters are ultra-hard tools used for oil and gas drilling. They are produced by sintering diamond particles at High Pressure (5.5+ GPa) and High Temperature (1300+ K). After synthesis, the cutter is returned to room temperature and pressure. The significant mismatches in thermal expansion coefficient and stiffness between the diamond table and the tungsten carbide substrate result in residual stresses. The magnitude and distribution of these residual stresses is believed to impact cutter failure rate. We have produced finite element models to estimate these residual stress but previous measurements at Engin-X show significantly lower strains than predicted. The proposal is to investigate the effect of varying different manufacturing conditions on the residual stress, to identify the most important factors determining the magnitude and distribution of the stresses

Principal Investigator: Professor Richard Todd
Experimenter: Mr Tuoran Chen
Local Contact: Dr Saurabh Kabra
Experimenter: Dr Robin Laurence
Experimenter: Professor Clive Siviour

DOI: 10.5286/ISIS.E.RB1920638

ISIS Experiment Number: RB1920638

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Richard Todd et al; (2020): The effect of manufacturing conditions on residual stress in polycrystalline diamond cutters, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920638

Data is released under the CC-BY-4.0 license.