Abstract: Present embodiments relate to a riser bolt torque device that is configured to couple a first riser joint to a second riser joint to form a riser of a subsea drilling system. The riser bolt torque device includes a first arm and a second arm, multiple torque tools supported on the first arm and the second arm, and one or more actuators configured to drive the first arm and the second arm to pivot relative to one another from an open configuration to a closed configuration to enable alignment between the multiple torque tools and a flange of the first riser joint.

Abstract: A rolling bearing cage includes axially spaced side rings, cage webs connecting the side rings, cage pockets, and first and second cage ends. The cage webs have rolling element guides projecting radially inwards and the cage pockets are formed between the rolling element guides. The first cage end has a closing element formed by an axial groove at a radial web surface of a cage web that is reinforced relative to the other cage webs and delimits a penultimate cage pocket. The second cage end has a closing element formed by a partial cage web connecting the end portions at the second cage end to one another. The partial cage web is arranged to hook into the axial groove to form a cage lock that secures the second cage end to the first cage end against unintentional loosening in a peripheral direction and in both radial directions.

Abstract: Provided is a method of manufacturing a spring for inspecting the stress distribution of the spring under load. The method for manufacturing a spring (1) includes the steps of applying a load to the spring (1), measuring the stress of the spring (1) under the load, and releasing the load applied to the spring (1), the measuring the stress of the spring (1) being made by measuring the stress on the surface of the active part of the spring (1) using X-ray diffraction with the cos ? method, and the method further including the step of determining whether the magnitude of the stress of the spring (1) meets a criterion.

Abstract: A method for assembling blade parts of a wind turbine blade includes the steps of: obtaining information about a connection area of a blade part, at least one of selecting, customizing and manufacturing an adaptor piece depending on the obtained information about the connection area of the blade part, wherein the adaptor piece serves to connect the blade part with at least another blade part, and connecting the blade part to the adaptor piece. Independently manufactured blade parts of a wind turbine blade are assembled in a manner such that the assembled blade comes as close as possible to a single-casted blade.

Abstract: A component supply device is configured to feed a component having a through hole to a target position. The component supply includes: a rod including at its distal end a holding portion to be inserted into the through hole; an actuator; a valve mounted on the rod; and a fixing portion by which the valve that advances with the rod passes. The rod includes a gas outlet located in an outer periphery of the holding portion and configured to blow gas rearward, and a gas passage extending inside the rod and configured to send gas supplied from a gas source to the gas outlet. The valve includes a push switch configured to be switched between an advanced attitude and a withdrawn attitude, and a biasing unit configured to bias the push switch to the withdrawn attitude. The fixing portion includes a pressing wall portion facing the push switch.

Abstract: A fastener installation tool is provided with a first fastener guide that guides a fastener into a side of a workpiece at an angle, and includes a pusher block that can be used to urge the workpiece toward an adjacent workpiece. The tool can include a second fastener guide having a spacer with a spacer width that establishes a consistent, predetermined gap between the adjacent workpieces. The pusher block can be strengthened via a pusher block width that is greater than the spacer width to withstand forces when the pusher block urges one workpiece toward another. The guide can be selectively moveable in a guide tube and able to be clamped in a selected location therein to set the spacer a predetermined distance from the pusher block to accommodate a variety of board sizes. Related methods of use also are provided.

Abstract: A method for repairing a crack in ships or other structures that includes adhesively applying fiber reinforced metal matrix composite tape across the crack of the structure to reduce propagation of the crack and provide additional structural stability until the crack can be permanently repaired.

Abstract: A rotor for a turbomachine and a method of manufacturing the same. The method includes providing a lug with a lug body and an interface material disposed on the lug body. The method also includes friction welding the lug to a hub member via the interface material to define a projected structure for an outer radial area of a disc assembly of the rotor. The projected structure is configured to support a first side of a rotor blade of the rotor in cooperation with a second projected structure of the disc assembly supporting a second side of the rotor blade. The lug body and the hub member are made from different materials.

Abstract: A fluid end assembly of a hydraulic fluid pump includes a housing having a first housing bore and a second housing bore offset axially from the first housing bore. A plate is fastened to the housing. The plate has a first plate bore axially aligned with the first housing bore and a second plate bore axially aligned with the second housing bore. A first removable valve cover closes the first housing bore and a second removable valve cover closes the second housing bore. A first retainer engages the first plate bore and abuts the first removable valve cover and a second retainer engages the second plate bore and abuts the second removable valve cover.

Abstract: A process for processing a rotary tillage blade for a dry farmland based a wasted steel rail is provided. The process specifically includes the following steps: selecting a waste annotated steel rail U71Mn or U75V; breaking the steel rail into a rail head, a rail web and a rail bottom in a cutting area by means of a flame cutting device and then cutting the steel rail; and applying a hydrostatic pressure to the steel rail by using a hydraulic machine to separate the rail head, the rail web and the rail bottom. The wasted steel rail can be processed into the rotary tillage blade for the dry farmland by means of methods such as segmenting, rolling, blanking, punching, electric furnace heating, bending, hot forging and thermal treatment. The surface hardness and a wear resistance value thereof are superior to those of an existing rotary tillage blade.

Abstract: A slab manufacturing method in which casting drum housing screw-down system deformation characteristics which have been acquired prior to the start of slab casting and which indicate deformation characteristics of a housing configured to support a casting drum and deformation characteristics of a screw-down system configured to screw down the casting drum is used to calculate an estimated plate thickness at both end portions of a slab in a width direction thereof from Expression 1 ((estimated plate thickness on entry side of rolling mill)=(screw-down position of casting cylinder)+(elastic deformation of casting drum)+(casting drum housing screw-down system deformation)+(drum profile of casting drum)?(elastic deformation of casting drum at time of screw-down position zero-point adjustment)), an entry-side wedge ratio and an exit-side wedge ratio are calculated on the basis of the estimated plate thickness calculated from Expression 1.

Abstract: A self-piercing riveting (SPR) system includes a top sheet and a bottom sheet. The top sheet is layered above the bottom sheet and are disposed between a die and a blank holder. The SPR system further includes a barrier disposed between the bottom sheet and the die, wherein the barrier is configured to reduce stress concentrations during formation of a joint between the top sheet and the bottom sheet. The barrier may has a thickness between 0.8 mm and 1.0 mm and is made from a cold formed or a dual phase steel alloy.

Abstract: Plating systems and related methods are disclosed for prepping of structural members, such as splicing and/or pre-plating structural members. A plating system can include a splicing system and a pre-plating system. A splicing system include an infeed system, an outfeed system, and a press to affix or otherwise secure a plate to opposing surfaces of structural members to splice the structural members together. Guides are automatically positioned to guide short members through the splicing system. A pre-plating system includes a press, an infeed system configured to deliver a structural member to the press, and an outfeed system configured to remove the structural member from the press. The press is configured to secure a plate to the structural member on a surface other than the opposing surfaces used to splice the structural members together. A plate picking robot is configured to pick a plate from a plate container and position the plate on a press surface.

Abstract: An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

Abstract: In a process for the adjustment of backlash between a pinon (20) and a rack (10) in a rack-pinion drive, a motor-gearbox assembly (30) including a motor and a gearbox is supported on a carrier (40) via a positioning mechanism (42) for precisely positioning the assembly (30) in a radial position relative to the rack (10). In the process, the assembly (30) is positioned in a first radial distance relative to the rack (10), using the positioning mechanism (42) and a first circumferential backlash between the pinon (20) and the rack (10) is determined at a first position of the pinion (20) along the rack (10), based on measurements taken on an input side of the gearbox.

Abstract: A projection-welding spinning tensioner includes a first spoke and a second spoke. The first spoke includes a first rim end, a first plate end and a first center plate end. The second spoke includes a second rim end, a second plate end and a second center plate end. The first and second spokes have a same structure and are arranged in a mirror-symmetrical manner. Several projection-welding points are disposed on opposing surfaces of the first plate end and/or the second plate end, the projection-welding points are annularly arranged at an interval, the projection-welding points are arranged in a form of a concentric circle to form a least two annular arrangements, welded fixation of the first plate end and the second plate end is completed through the projection-welding points. A cavity groove for holding a bearing is formed inside after the first and second center plate ends are docked.

Abstract: An airfoil component for attaching to a cropped airfoil is provided. The cropped airfoil comprises a cropped airfoil attachment section and a cropped first side opposite a cropped second side, which each extend axially between a cropped first edge and a cropped second edge to define a cropped chord length. The airfoil component comprises a body having a component first side opposite a component second side. The body defines an attachment section for attaching the airfoil component to the cropped airfoil at the cropped airfoil attachment section. The attachment section extends axially between a component first edge and a component second edge to define a component chord length, and the attachment section is oversized with respect to the cropped airfoil attachment section such that the component chord length is longer than the cropped chord length. Systems and methods also are provided.

Abstract: At least one turbine component for a gas turbine includes a base component formed by casting and an article. The base component includes a platform. The article on the upper surface of the platform is formed by additive manufacturing. The article has a proximal face sized and shaped to cover at least a portion of the upper surface of the platform of the turbine component and a contoured distal face opposite the proximal face. The contoured distal face has a contour surface serving as at least a portion of a hot gas path surface of the turbine component. The contour surface is arranged and disposed to provide a controlled flow pattern of a working fluid across the contour surface based on a clock mounting location of the turbine component in a turbine.

Abstract: A manufacturing method is provided during which a preform component for a turbine engine is provided. The preform component includes a substrate. An outer coating is applied over the substrate. A characteristic of the outer coating is determined. Instructions for forming a cooling aperture are revised based on the characteristic of the outer coating to provide revised instructions. The cooling aperture is formed in the outer coating and the substrate based on the revised instructions.

Abstract: A method for producing a valve body of a hollow valve includes providing a workpiece blank or semi-finished product, spin extruding the workpiece to produce a preform having a cup with a hollow shape formed by the cup wall. A hollow valve produced by this method is also provided.