Earth-boring bits and other parts including cemented carbide
AssigneeTDY Industries, Inc.
InventorsPrakash K. Mirchandani, Morris E. Chandler, Michale E. Waller, Heath C. Coleman
Life of this patent
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AssigneeTDY Industries, Inc.
InventorsPrakash K. Mirchandani, Morris E. Chandler, Michale E. Waller, Heath C. Coleman
Estimating the term…
An article of manufacture includes a cemented carbide piece and a joining phase that binds the cemented carbide piece into the article. The joining phase includes inorganic particles and a matrix material. The matrix material is a metal and a metallic alloy. The melting temperature of the inorganic particles is higher than the melting temperature of the matrix material. A method includes infiltrating the space between the inorganic particles and the cemented carbide piece with a molten metal or metal alloy followed by solidification of the metal or metal alloy to form an article of manufacture.
An article of manufacture comprising:
An earth-boring article, comprising:
An earth-boring article, comprising:
An earth-boring article, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Button-type inserts: with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
Sintering only: liquid phase sintering
After-treatment of workpieces or articles: impregnating
Based on carbides, but not containing other metal compounds: based on tungsten carbide
About 2 years 7 months of term left · ends 19 May 2029 (estimated)
1. Field of the Technology
The present disclosure relates to earth-boring articles and other articles of manufacture comprising sintered cemented carbide and to their methods of manufacture. Examples of earth-boring articles encompassed by the present disclosure include, for example, earth-boring bits and earth-boring bit parts such as, for example, fixed-cutter earth-boring bit bodies and roller cones for rotary cone earth-boring bits. The present disclosure further relates to earth-boring bit bodies, roller cones, and other articles of manufacture made using the methods disclosed herein.
2. Description of the Background of the Technology
The features and advantages of methods and articles of manufacture described herein may be better understood by reference to the accompanying drawings in which:
FIG. 1 is a schematic perspective view of a fixed-cutter earth-boring bit body fabricated from either solid cemented carbide or infiltrated hard particles;
FIG. 2 is a schematic side view of one non-limiting embodiment of an article of manufacture including cemented carbide according to the present disclosure;
The reader will appreciate the foregoing details, as well as others, upon considering the following detailed description of certain non-limiting embodiments according to the present disclosure.
In the present description of non-limiting embodiments, other than in the operating examples or where otherwise indicated, all numbers expressing quantities or characteristics are to be understood as being modified in all instances by the term “about”. Accordingly, unless indicated to the contrary, any numerical parameters set forth in the following description are approximations that may vary depending on the desired properties one seeks to obtain by the methods and in the articles according to the present disclosure. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each such numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques.
Any patent, publication, or other disclosure material, in whole or in part, that is said to be incorporated by reference herein is incorporated herein only to the extent that the incorporated material does not conflict with existing definitions, statements, or other disclosure material set forth in this disclosure. As such, and to the extent necessary, the disclosure as set forth herein supersedes any conflicting material incorporated herein by reference. Any material, or portion thereof, that is said to be incorporated by reference herein, but which conflicts with existing definitions, statements, or other disclosure material set forth herein is only incorporated to the extent that no conflict arises between that incorporated material and the existing disclosure material.