Laser-brazed PCD element

Patent metadata

Field	Value
Publication number	US-10668564-B2
Application number	US-201815901940-A
Country	US
Kind code	B2
Filing date	Feb 22, 2018
Priority date	Dec 11, 2013
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

The present disclosure relates to an industrial device, such as a drill bit that may be fabricated by performing a first coupling process that includes activating an attachment material between a first cutter element and a first recess of a bit body, monitoring a temperature associated with the first cutter element by a camera, and adjusting one or more parameters associated with the laser in response to output from the camera. The process may be repeated for a plurality of cutter elements. The disclosure further includes the process and a system to perform the process.

First claim

The invention claimed is:

1. A method for fabricating a bit body, the method comprising:
performing a first coupling process, the first coupling process comprising:
heating an attachment material located along at least a portion of an attachment joint between a first cutter element and a first recess of a bit body, wherein heating comprises applying a substantially automated heat source comprising a laser;
monitoring a temperature of at least one of the first cutter element, the bit body, the attachment joint, and the attachment material using a camera; and
adjusting at least one parameter associated with the laser in response to at least one output from the camera related to the monitored temperature.

2. The method of claim 1 , wherein the one or more parameters associated with the laser comprise the intensity of the laser.

3. The method of claim 1 , wherein the one or more parameters associated with the laser comprise the location of the laser.

4. The method of claim 1 , wherein the one or more parameters associated with the laser comprise the heating pattern of the laser.

5. The method of claim 1 , further comprising:
rotating the bit body to expose a second cutter element to the substantially automated heat source, the second cutter element located within a second recess of the bit body; and
performing a second coupling process, wherein the second coupling process is substantially similar to the first coupling process.

6. The method of claim 1 , wherein the first recess is configured to mechanically lock the first cutter element within the recess.

7. The method of claim 1 , wherein the first recess is configured to mechanically lock the first cutter element along an axis tangential to the surface of the bit body.

8. The method of claim 1 , wherein the first recess is configured to mechanically lock the first cutter element along an axis perpendicular to the surface of the bit body.

Assignees

• Halliburton Energy Services Inc

Inventors

• Bird Jay Stuart

Classifications

• E21B10/42

  Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits (characterised by wear resisting parts E21B10/46; by conduits or nozzles for drilling fluid E21B10/60; by detachable or adjustable parts E21B10/62) · CPC title

• E21B10/54

  the bit being of the rotary drag type, e.g. fork-type bits · CPC title

• B23K26/20 Primary

  Bonding (soldering by means of radiant energy B23K1/005) · CPC title

• E21B10/56 Primary

  Button-type inserts (E21B10/52 takes precedence) · CPC title

• E21B10/567

  with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts · CPC title