FIELD: process engineering.
SUBSTANCE: invention relates to abrasive elements and can be used in cutting tools for drilling holes in underground rocks. Proposed abrasive element incorporates a layer of polycrystalline diamond bound with base on boundary surface, work surface on side directed from said boundary surface and lateral surface arranged between work surface and boundary surface. Note here that abrasive element has a region enriched in catalytic material facilitating sintering during formation of polycrystalline diamond and annular region depleted of catalytic material, arranged along lateral surface of abrasive element and adjoining its work surface.
EFFECT: increased wear resistance of abrasive element.
12 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POLYCRYSTALLINE DIAMOND ABRASIVE ELEMENT | 2004 |
|
RU2355865C2 |
| MACHINING TOOL COMPONENT | 2008 |
|
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| FINE-GRAINED POLYCRYSTALLINE ABRASIVE MATERIAL | 2006 |
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|
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| INSERT FOR CRUSHING TOOL, METHOD OF ITS PRODUCTION AND TOOL WITH SAID INSERT | 2009 |
|
RU2532932C2 |
| POLYCRYSTALLINE DIAMOND WITH CATALYTIC MATERIAL-DEPLETED SURFACE | 2001 |
|
RU2270820C9 |
| ABRASIVE COMPACT FROM POLYCRYSTALLINE DIAMOND | 2007 |
|
RU2466200C2 |
| HARD-FACING MATERIALS INCLUDING PCA-PARTICLES, WELDING BARS AND DRILL TOOLS WITH SUCH MATERIALS, METHODS OF THEIR PRODUCTION AND APPLICATION | 2010 |
|
RU2537462C2 |
| METHOD OF PREPARING MODIFIED ABRASIVE COMPACT | 2006 |
|
RU2418673C2 |
