Abstract: A method of manufacturing an erosion-shielded turbine blade includes providing a turbine blade for use with a rotary machine. The turbine blade includes an airfoil extending between a root and a tip. The airfoil includes a pressure side and an opposite suction side, and each of the pressure and suction sides extends between a leading edge and a trailing edge. The method also includes printing a green body part by an additive manufacturing process by selectively depositing a binder solution across a particulate erosion-resistant material, and sintering the green body part to produce a post-sintering erosion shield that includes densified erosion-resistant material. The method also includes coupling the erosion shield to the leading edge of the turbine blade.

Abstract: A method of forming an erosion shield for a turbine blade includes depositing a layer of filler material defining an upper surface. The method also includes depositing a layer of erosion-resistant material across the upper surface of the layer of filler material. An interface is defined between the layer of filler material and the layer of erosion-resistant material and has a shape of the upper surface. The method also includes machining the layer of filler material to produce the erosion shield. The erosion shield has the layer of erosion-resistant material, the machined layer of filler material, and the interface defined therebetween. An inner surface of the erosion shield is defined by the machined layer of filler material that is sized and shaped for attaching to a leading edge of the turbine blade. Each of the interface and the inner surface extend a length of the erosion shield.

Abstract: A block assembly for locking a toothed gear housed in a frame includes a body shaped to couple to a portion of the frame adjacent to the gear for translation in a first direction parallel to an axis of the gear, and a locking block coupled to the body that includes at least one locking tooth shaped complementary to at least one gear tooth of the gear. The block assembly further includes an adjustment mechanism operable, when the body is coupled to the frame, to move the locking block in a second direction that is substantially orthogonal the axis of the gear, such that at least one locking tooth is received between a circumferentially spaced pair of the gear teeth to prevent movement of the toothed gear.

Abstract: Various embodiments include a system for machining a hole in a turbine blade. The system can include: a mount for engaging a first side of a turbine rotor, the mount including: a drill plate for coupling with the first side of the turbine rotor, the drill plate having: a body; a feed opening on a first side of the body; a passage extending from the feed opening through the body; and a second opening on a second side of the body, the second opening coupled with the passage and positioned to align with the pre-formed hole in the turbine rotor; an alignment bushing for engaging the pre-formed hole in the rotor at a second side of the rotor; and a cutting device for extending through the body and alignment bushing, the cutting device for machining the hole in the blade, the cutting device aligned along a chamfer axis relative to a primary axis of the turbine rotor.

Abstract: A block assembly for locking a toothed gear housed in a frame includes a body shaped to couple to a portion of the frame adjacent to the gear for translation in a first direction parallel to an axis of the gear, and a locking block coupled to the body that includes at least one locking tooth shaped complementary to at least one gear tooth of the gear. The block assembly further includes an adjustment mechanism operable, when the body is coupled to the frame, to move the locking block in a second direction that is substantially orthogonal the axis of the gear, such that at least one locking tooth is received between a circumferentially spaced pair of the gear teeth to prevent movement of the toothed gear.

Abstract: Various embodiments include a system for machining a hole in a turbine blade. The system can include: a mount for engaging a first side of a turbine rotor, the mount including: a drill plate for coupling with the first side of the turbine rotor, the drill plate having: a body; a feed opening on a first side of the body; a passage extending from the feed opening through the body; and a second opening on a second side of the body, the second opening coupled with the passage and positioned to align with the pre-formed hole in the turbine rotor; an alignment bushing for engaging the pre-formed hole in the rotor at a second side of the rotor; and a cutting device for extending through the body and alignment bushing, the cutting device for machining the hole in the blade, the cutting device aligned along a chamfer axis relative to a primary axis of the turbine rotor.

Abstract: An inspection system for a cylindrical member includes at least one retention member positionable about at least a portion of a circumference of the cylindrical member. The inspection system also includes a positioning system and at least one housing. The at least one housing is coupleable to the at least one retention member at each of a series of circumferential inspection locations. The at least one housing includes at least one probe. The positioning system cooperates with the at least one retention member to position the at least one probe at each of the circumferential locations. The at least one probe is configured to send and receive a signal through an interior of the cylindrical member.

Abstract: A turbine induction temper system. In one embodiment, an induction temper system for a turbine includes: an induction member; a control system operably connected to the induction coil; and a temperature sensor operably connected with the control system, wherein the control system is configured to control an electrical current supplied induction member in response to a temperature indicator about a component of the turbine obtained from the temperature sensor.

Abstract: Various embodiments include an ultrasonic detection method, performed using an ultrasonic detection system having a set of corresponding transmitting phased array devices and receiving phased array devices, the method including: for each of a plurality of static positions about a portion of a machine rotor: transmitting, at a corresponding transmitting phased array device, a set of ultrasonic waves through the portion of the machine rotor, and receiving, at the corresponding receiving phased array device, the set of ultrasonic waves after transmission through the portion of the machine rotor, to obtain a set of ultrasonic detection information about the machine rotor; and forming an ultrasonic representation of the machine rotor by aligning the sets of the ultrasonic detection information about the machine rotor obtained from each of the plurality of static positions about the portion of the machine rotor.

Abstract: A system for honing a shaft is provided. The system includes a rod having an axis and a head coupleable to the rod. The system also includes a drive motor coupleable to the rod such that the rod and the head are rotatable via the drive motor. The system further includes a linear actuator coupleable to the rod such that the rod and the head are translatable along the axis while being rotated via the drive motor.

Abstract: This disclosure describes embodiments of a method of repairing a diaphragm found in a turbine, and a diaphragm assembly resulting from the same, that does not require welds in between the partitions. The method inserts a replacement part in place of certain machine-removed portions of the existing partitions on the diaphragm. The replacement part includes coupons that work in combination with the remaining portions of the partitions to form the aerodynamic shape of the original partitions.

Abstract: A table for use in working on a circularly arcuate component is disclosed. The table includes a base frame and a first work surface mounted to the base frame, the first work surface including at least one linearly slidable work section separable from a remaining portion of the first work surface. A fastener for holding a circularly arcuate component relative to the at least one linearly slidable work section is provided. A mount for mounting a machining tool for machining the circularly arcuate component or a circular component may also be provided.

Abstract: A turbine diaphragm airfoil, a turbine diaphragm assembly employing such an airfoil, and a method of repair are described. In one embodiment, a turbine diaphragm airfoil includes: a composite airfoil body which includes a pressure side and a suction side, the composite airfoil including: a leading edge section forming a portion of each of the pressure side and the suction side; and a trailing edge section integral with the leading edge section, the trailing edge section including: a prefabricated member affixed to the leading edge section, the prefabricated member forming a remainder of the pressure side of the composite airfoil body; and a weld or braze section contacting the leading edge section and the prefabricated member, the weld or braze section forming a remainder of the suction side of the composite airfoil body.

Abstract: An apparatus is provided comprising a base frame having a turntable, and a vertical section configured to be mounted on the turntable via a slidable mounting platform. The vertical section has a tapered wedge configured to move up and down the vertical section. The turntable is configured to rotate at least 360 degrees, and the vertical section is configured to move in a radial direction with respect to a center of rotation of the turntable.

Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.

Abstract: A tool and a method are disclosed for cutting coils in a dynamoelectric machine. In an embodiment, the tool includes a blade having a cutting edge on a distal end thereof. The blade is operably connected on a proximal end thereof to a double acting hydraulic cylinder. The tool further includes at least one guide arm coupled to and extending longitudinally in a distal direction from the double acting hydraulic cylinder, wherein the at least one guide arm is disposed alongside the blade and extends parallel to a path of the blade.

Abstract: This disclosure describes embodiments of a method of repairing a diaphragm found in a turbine, and a diaphragm assembly resulting from the same, that does not require welds in between the partitions. The method inserts a replacement part in place of certain machine-removed portions of the existing partitions on the diaphragm. The replacement part includes coupons that work in combination with the remaining portions of the partitions to form the aerodynamic shape of the original partitions.

Abstract: A method of welding a bearing is provided. The method includes providing an apparatus including at least one welding torch and a processor, positioning a holding fixture proximate the apparatus, securing a bearing in position in the holding fixture, applying a bead of weld to facilitate repairing a damaged surface of the bearing and incrementally rotating the bearing with the apparatus.

Abstract: An apparatus is provided comprising a base frame having a turntable, and a vertical section configured to be mounted on the turntable via a slidable mounting platform. The vertical section has a tapered wedge configured to move up and down the vertical section. The turntable is configured to rotate at least 360 degrees, and the vertical section is configured to move in a radial direction with respect to a center of rotation of the turntable.

Abstract: An apparatus adapted for servicing a turbomachine component includes a tool delivery mechanism adapted for delivering a tool to a desired location in a turbomachine. A tool support is adapted to be secured onto the body of the turbomachine, and is also configured to support the tool delivery mechanism. A machining tool is attached to the tool delivery mechanism, and includes an axial slide clamp configured to clamp to the turbomachine component, a radial slide slidably connected to the axial slide clamp, a spring connected to the axial slide clamp and the radial slide, the spring providing axial tension, and a machining bit retained at least partially within the radial slide. The apparatus is adapted to service the component of the turbomachine in-situ.