Determination of the wear mechanism of the diamond tool matrix by analysis of wear particles
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
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| Publication Date | 2025-08-27 |
| Journal | Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu |
| Authors | O.P. Vynohradova, Viktoriia Vapnichna |
| Analysis | Full AI Review Included |
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Executive Summary
Section titled āExecutive Summaryā- Value Proposition: The study identifies the wear mechanism of diamond tool matrices by analyzing wear particles, focusing on the contact zone between rock microindenters and the matrix material.
- Specific Achievement: Determination of the direct contact point between rock microindenters and the non-diamond element (Ni-Sn system) in wear particles.
- Method: Wear products were generated via short-term contact between a Ni-Sn alloy and abrasive sandstone under simulated drilling conditions. Sludge analysis was performed using SEM-EDS and optical microscopy.
- Key Finding: The contact zone exhibits an elliptical groove, the epicenter of microcrack formation. Morphological similarities between wear particles and the diamond tool bond suggest a shared wear mechanism.
- Originality: Identifying a damage source on the diamond toolās working surface, enabling further study of bond wear mechanisms.
- Practical Value: Characterizing wear particles aids in assessing wear resistance and developing improved wear resistance criteria for diamond tools.
- Resource Savings: Improved wear resistance leads to reduced tool consumption and associated cost savings.
Technical Specifications
Section titled āTechnical Specificationsā| Parameter | Value | Unit | Context |
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View Original Abstract
Purpose. Determining the contact zone of microindentors from the rock side with the surface of a non-diamond element based on the Ni-Sn system (6 wt%) and in comparison with the contact zone of the specified microindentors with the surface of a similar bond of a diamond-containing element, under dynamic loading. Methodology. To select the wear products of the experimental element material, made by resistive electro-sintering and the core of abrasive sandstone as a result of short-term contact between their surfaces, the tests were performed on a stand created on the basis of the screw-cutting lathe ŠŠŠ-200 according to the parameters of technological conditions that simulate the drilling process. The sludge suspension was selected and examined using a ZEISS EVO 50 XVP scanning electron microscope with an Oxford Instruments Ultim Max energy dispersive X-ray analyser. Also, the worn surface of the diamond-free element was subjected to microscopic examination using Lomo Metam R-1 microscopes with a Digital KOCOM CCD video camera and Bausch & Lomb, mod. Gemolite. Findings. The result of the study involves the determination of the direct point of contact between the microindenter on the rock side and the surface of the non-diamond element in the wear particle. The point of direct contact of the specified counterbodies has the form of an elliptical groove, which is the epicenter of the formation of a system of microcracks. The morphometric identity of the wear particles of the studied element and the diamond tool bond indicates the similarity of one of the mechanisms of microindentation from the side of the rock. Originality. Determination of one of the sources of damage to the working surface of the diamond tool element opens up prospects in the study of all stages of the bond wear mechanism depending on changes in its chemical composition or technological parameters of the tool use. Practical value. Determination of the chemical and morphometric features of the wear particles of the diamond tool bond will allow assessing its wear resistance and developing wear resistance criteria, which is reflected in the saving of resources.