Aluminum diamond cutting tool
AssigneeNano Materials International Corporation
InventorsOmar Kevin Loutfy, Raouf Loutfy, Birol Sonuparlak
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Abstract
A novel diamond cutting tool and its use in cutting and grinding applications. The cutting surface of the tool is composed of an aluminum/diamond metal matrix composite comprising diamond particles dispersed in a matrix of aluminum or an aluminum alloy, and wherein the diamond particles have thin layers of beta-SiC chemically bonded to the surfaces thereof.
Claims28
A method for machining a workpiece comprising:
- fabricating a diamond cutting tool by a pressure infiltration of molten aluminum or an aluminum based alloy in a cylindrical compact of SiC-coated diamond particles surrounding an inner metal core, thus providing a cylindrical diamond cutting tool comprising an outer diamond-containing cutting surface bonded to the inner metal core, wherein said outer diamond-containing cutting surface is composed of an aluminum/diamond metal matrix composite comprising diamond particles dispersed in a matrix of aluminum or aluminum based alloy;
- cutting or grinding said workpiece with the rotating diamond cutting tool;
- and
- redressing the cutting tool by at least partially dissolving the matrix of aluminum or aluminum based alloy to expose additional diamond particles dispersed in said matrix.
A diamond cutting tool comprising a cylindrical outer diamond-containing cutting surface formed by a pressure infiltration of molten aluminum or an aluminum based alloy in a cylindrical compact of SiC-coated diamond particles and bonded to an inner metal core, said outer diamond-containing cutting surface being composed of an aluminum/diamond metal matrix composite comprising diamond particles dispersed in a matrix of aluminum or an aluminum based alloy, wherein said outer diamond-containing cutting surface and said inner metal core are each provided with interlocking grooves or protrusions for improved bonding between them.
A method for machining a workpiece comprising:
- fabricating a diamond cutting tool by a pressure infiltration of molten aluminum or an aluminum based alloy in a cylindrical compact of SiC-coated diamond particles surrounding an inner metal core, thus providing a cylindrical diamond cutting tool comprising an outer diamond-containing cutting surface bonded to the inner metal core, wherein said outer diamond-containing cutting surface is composed of an aluminum/diamond metal matrix composite comprising diamond particles dispersed in a matrix of aluminum or aluminum based alloy;
- and
- cutting or grinding said workpiece with the rotating diamond cutting tool;
- wherein said outer diamond-containing cutting surface and said inner metal core are each provided with interlocking grooves or protrusions for improved bonding between them.
Dependencies are inferred from the claim text.