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.

Abstract: A disclosed example embodiment includes a drill bit used to form wellbores in subterranean formations. The drill bit includes a drill bit body for coupling to a lower end of a drill string. The drill bit body includes at least one support arm having an inwardly extending journal with a journal bearing having at least one radially reduced pocket extending at least partially circumferentially around the journal bearing including a load side of the journal bearing. At least one rotary cutter assembly is rotatably mounted to the journal. A plurality of cutting elements is disposed on the at least one rotary cutter assembly. At least two independent hardmetal pads are positioned within the at least one radially reduced pocket such that the hardmetal pads have a gap disposed therebetween.

Abstract: A wellbore formation system includes a downhole cutting tool having a body and at least one cutting element. A sensor is coupled to the downhole cutting tool, and the sensor includes a transmitter configured to transmit a signal prior to wear on a portion of the downhole cutting tool reaching a first amount. The sensor ceases transmission of the signal when the wear on the portion of the downhole cutting tool reaches the first amount.

Abstract: The present disclosure relates to downhole tools containing bearings with cladding on their surfaces. The cladding contains a low dilution zone. In specific embodiments, the downhole tools may be roller cone drill bits, also sometimes referred to as rotary cone drill bits. The present disclosure further relates to processes for applying cladding to bearings.

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.

Abstract: The present disclosure relates to downhole tools containing bearings with cladding on their surfaces. The cladding contains a low dilution zone. In specific embodiments, the downhole tools may be roller cone drill bits, also sometimes referred to as rotary cone drill bits. The present disclosure further relates to processes for applying cladding to bearings.

Abstract: A wellbore formation system includes a downhole cutting tool having a body and at least one cutting element. A sensor is coupled to the downhole cutting tool, and the sensor includes a transmitter configured to transmit a signal prior to wear on a portion of the downhole cutting tool reaching a first amount. The sensor ceases transmission of the signal when the wear on the portion of the downhole cutting tool reaches the first amount.

Abstract: A disclosed example embodiment includes a drill bit used to form wellbores in subterranean formations. The drill bit includes a drill bit body for coupling to a lower end of a drill string. The drill bit body includes at least one support arm having an inwardly extending journal with a journal bearing having at least one radially reduced pocket extending at least partially circumferentially around the journal bearing including a load side of the journal bearing. At least one rotary cutter assembly is rotatably mounted to the journal. A plurality of cutting elements is disposed on the at least one rotary cutter assembly. At least two independent hardmetal pads are positioned within the at least one radially reduced pocket such that the hardmetal pads have a gap disposed therebetween.

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.

Abstract: Internal coarse particle injection plasma transferred arc torch nozzles comprising: a heat-resistant nozzle body; at least one coarse hard-metal particle internal injection port; at least one fine hard-metal particle and matrix internal injection port; at least one gas port; and a cathode. Related systems, apparatus, compositions, and methods involving such arc torch nozzles are also disclosed.

Abstract: A system of repairing and protecting a surface of a drill bit includes forming a drill bit body that includes a magnetized material or is otherwise magnetizable. The drill bit includes at least one cutting element and is operable to generate a magnetic field. A drilling fluid that includes magnetizable, regenerative particles is circulated through a drill string and wellbore in which the drill bit is deployed. The magnetic field attracts the regenerative particles to the surface of the drill bit body to occupy cracks and chips formed in the surface of the drill bit body, and to form a protective layer of the regenerative particles over the surface of the drill bit body.

Abstract: Internal coarse particle injection plasma transferred arc torch nozzles comprising: a heat-resistant nozzle body; at least one coarse hard-metal particle internal injection port; at least one fine hard-metal particle and matrix internal injection port; at least one gas port; and a cathode. Related systems, apparatus, compositions, and methods involving such arc torch nozzles are also disclosed.

Abstract: A rotary cone drill bit for forming a borehole having a body with an underside and an upper end portion adapted for connection to a drill string. The drill bit rotates around a central axis of the body. A number of angularly-spaced arms are integrally formed with the body and depend therefrom. Each arm has an inside surface with a spindle connected thereto and an outer shirttail surface. Each spindle projects generally downwardly and inwardly with respect to its associated arm, has a generally cylindrical upper end portion connected to the associated inside surface, and has an inner sealing surface on the upper end portion. A number of rotary cone cutters equal to the number of arms are each mounted on respective spindles.