Superhard material article of manufacture
AssigneeKennametal Inc.
InventorsTed R. Massa, John J. Prizzi, David R. Siddle
Life of this patent
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Abstract
The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube having a longitudinal bore lined with a superhard material, including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness greater than that of alumina as the abrasive material. The invention also comprises methods of using an AWJ system having a mixing tube having a longitudinal bore lined with a superhard material. Some embodiments include AWJ mixing tubes comprised of a plurality of connected components. Such connections may be disconnectable.
Claims142
An abrasive water jet mixing tube comprising a longitudinal bore lined with a monolithic superhard material.
An abrasive water jet mixing tube comprising an abrasive water jet body having a longitudinal bore lined with a superhard material and further having a tapered entryway lined with a superhard material.
The abrasive water jet mixing tube of claim 68 wherein the superhard material lining the tapered entryway has a thickness of at least about 0.005 inches (0.13 mm).
The abrasive water jet mixing tube of claim 68 wherein the bore and the tapered entryway are formed by EDM.
An abrasive water jet mixing tube comprising a flow passage formed by EDM machining in at least one abrasion-resistant material piece, wherein at least part of the flow passage has a lining comprising a superhard material.
An abrasive water jet mixing tube comprising:
- a) a plurality of components, and
- b) at least one connection connecting together said components;
- wherein each of said components has a flow passage formed by EDM machining in at least one abrasion-resistant material piece, and wherein the flow passage of a portion of at least one of said components has a lining comprising a superhard material, and wherein the flow passage of each of said components is in fluid communication with the flow passage of each other of said components.
A tubular elongate superhard material body having a bore formed by EDM machining, wherein said bore is substantially parallel to the longitudinal axis of the tubular elongate superhard material body, and wherein a ratio of the bore length to the bore diameter is in the range of about 20 to about 400.
A superhard material cylinder having a diameter of about 0.2 inches (5 mm) or less and a length of about 0.2 inches (5 mm) or more and a straight passage formed by EDM machining, wherein a ratio of the length of the superhard material cylinder to the diameter of the straight passage is at least 3 to 1.
A superhard material cylinder having a diameter of about 0.2 inches (5 mm) or less and a length of about 0.2 inches (5 mm) or more and a conical passage formed by EDM machining.
An abrasive water jet system comprising an abrasive water jet mixing tube, the abrasive water jet mixing tube having a longitudinal bore lined with and formed by EDM in a superhard material.
An abrasive water jet system comprising an abrasive water jet mixing tube, said abrasive water jet mixing tube including a flow passage formed by EDM machining in at least one abrasion-resistant material piece, wherein said flow passage has a lining comprising a superhard material.
An abrasive water jet system comprising an abrasive water jet mixing tube, said abrasive water jet mixing tube comprising:
- a) a plurality of components, and
- b) at least one connection connecting together said components;
- wherein each of said components has a flow passage formed by EDM machining in at least one abrasion-resistant material piece, and wherein the flow passage of at least one of said components has a lining comprising a superhard material, and wherein the flow passage of each of said components is in fluid communication with the flow passage of each other of said components.
A method for producing an abrasive water jet mixing tube, the method comprising the steps of:
- a) providing at least one superhard material body;
- and
- b) EDM machining a longitudinal bore through the at least one superhard material body.
A method for producing an abrasive water jet mixing tube, the method comprising the steps of:
- a) providing at least one superhard material body;
- b) surrounding the at least one superhard material body with a durable material to form an abrasive water jet mixing tube blank having a superhard material core;
- and
- c) EDM machining a longitudinal bore through the superhard material core of the abrasive water jet mixing tube blank.
A method for producing an abrasive water jet mixing tube, the method comprising the steps of:
- a) providing at least one composite body, the at least one composite body having a superhard material layer bonded to a cemented tungsten carbide substrate;
- b) providing at least one durable material body;
- c) bonding the at least one composite body to the at least one durable material body so as to form an AWJ mixing tube blank having a superhard material core;
- and
- d) EDM machining a longitudinal bore through the superhard material core of the AWJ mixing tube blank.
A method for producing an abrasive water jet mixing tube, the method comprising the steps of:
- a) providing an abrasive water jet body piece, the abrasive water jet body piece having a longitudinal bore lined with a superhard material;
- and
- b) bonding an entryway piece to the abrasive water jet body piece, the entryway piece having a superhard material formed on a tapered entryway.
A method for producing an AWJ mixing tube, the method comprising the steps of:
- a) providing an abrasion-resistant material piece comprising a superhard material;
- b) EDM machining a flow passage into said abrasion-resistant material piece so that at least part of the flow passage has a lining comprising a superhard material.
A method for producing an AWJ mixing tube, the method comprising the steps of:
- a) providing an abrasion-resistant material piece comprising a superhard material;
- b) inserting said abrasion-resistant material piece into a jacket;
- and
- c) EDM machining a flow passage into said abrasion-resistant material piece so that at least part of the flow passage has a lining comprising a superhard material.
A method for producing an abrasive water jet mixing tube, the method comprising the steps of:
- a) providing a plurality of components wherein each of said components has a flow passage formed by EDM, and wherein the flow passage of at least one of said components has a lining comprising a superhard material;
- and
- b) connecting said components together so that the flow passage of each of said components communicates with the flow passage of each other of said components.
A method for making a tubular elongate superhard material body, the method comprising the steps of:
- a) forming an elongate superhard material body;
- and
- b) EDM machining at least one bore in the elongate superhard material body so that said bore is substantially parallel to the longitudinal axis of said elongate superhard material body.
A method of using an abrasive water jet system, the method comprising the steps of:
- a) providing an abrasive water jet mixing tube having a longitudinal bore lined with and formed by EDM in a superhard materials
- b) providing abrasive particles;
- c) emitting the abrasive particles from the abrasive water jet mixing tube;
- and
- d) machining a workpiece with the emitted abrasive particles.
A method of using an abrasive water jet system, the method comprising the steps of:
- a) providing an abrasive water jet mixing tube, said abrasive water jet mixing tube including a flow passage formed by EDM machining in at least one abrasion-resistant material wherein at least part of the flow passage has a lining comprising a superhard material;
- b) providing abrasive particles;
- c) emitting said abrasive particles from said abrasive water jet mixing tube;
- and
- d) machining a workpiece with said emitted abrasive particles.
A method of using an abrasive water jet system, the method comprising the steps of:
- a) providing an abrasive water jet mixing tube;
- b) providing abrasive particles;
- c) emitting the abrasive particles from said abrasive water jet mixing tube;
- and
- d) machining a workpiece with said emitted abrasive particles;
- wherein the abrasive water jet mixing tube comprises a plurality of components and at least one connection connecting together said components, and wherein each of said components has a flow passage formed by EDM machining in at least one abrasion-resistant material piece, and wherein the flow passage of at least one of said components has a lining comprising a superhard material, and wherein the flow passage of each of said components is in fluid communication with the flow passage of each other of said components.
Dependencies are inferred from the claim text.