Molding process for making diamond tools
AssigneeChien-Min Sung
InventorChien-Min Sung
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Abstract
The present invention provides diamond tools, and a method for the formation thereof, using CVD techniques. In one aspect, an ephemeral mold is provided which has a diamond interface surface configured to inversely correspond to the desired shape for the working surface of a diamond layer in a tool. After the mold is provided, various CVD techniques may be used to deposit diamond layers upon the diamond interface surface of the mold. Following diamond deposition upon the diamond interface surface, the mold may be removed by various means, such as chemical etching, etc. Thus, the working surface of the diamond receives a shape which inversely corresponds to the configuration of the mold's diamond interface surface. The diamond mass may then be incorporated into a tool, if such incorporation has not yet taken place.
Claims26
A method for making a diamond tool comprising the steps of:
- a) providing a mold having a diamond interface surface configuration which inversely corresponds to a desired shape for a working surface of the tool;
- b) coating said diamond interface surface with diamond using a chemical vapor deposition (CVD) technique to form a diamond layer;
- c) separating the mold from the diamond layer such that the resultant diamond layer has a working surface which inversely corresponds to the diamond interface surface configuration of the mold and a growth surface opposite the working surface;
- and
- d) forming a tool body against at least a portion of the growth surface of the diamond layer.
Dependencies are inferred from the claim text.