Abstract: According to one implementation, a method of producing an ultrasonic inspection system includes creating design information on the ultrasonic inspection system and assembling the ultrasonic inspection system based on the design information. The design information includes numbers, positions and directions of at least one ultrasonic sensor and at least one ultrasonic transducer. The design information is created by an optimization calculation of which at least one parameter includes at least one of the numbers, positions and directions of the at least one ultrasonic sensor and the at least one ultrasonic transducer. The optimization calculation includes a simulation of an ultrasonic inspection for detecting a defect by the ultrasonic inspection system having the at least one ultrasonic sensor and the at least one ultrasonic transducer. The simulation is performed using a model simulating an object of the ultrasonic inspection.

Abstract: A method of repairing a piston seal assembly comprises removing worn material from a piston seal groove to generate a worked seal groove, applying a groove buildup member to the worked seal groove, and disposing a seal member proximate the groove buildup member.

Abstract: A tolerance compensation arrangement for fastening a first and second component, with automatic compensation of tolerances in the spacing between the components, has a base element with a first internal thread and a fastening structure for fastening the base element in an opening of the first component. The arrangement has an adjusting unit with a first external thread that forms a first thread pairing of a first thread direction with the first internal thread of the base element, and the adjusting unit has a fastening sleeve with a second internal thread. The arrangement has a dragging unit arranged at least partially in the adjusting unit. A fastening screw can be screwed into the second internal thread, and subsequently to the dragging unit. The adjusting unit can be co-rotated and brought into contact with the second component, and a press fit established between the adjusting unit and the base element.

Abstract: A method for manufacturing a heat dissipation device that includes stamping a composite plate including a welding material to form a first plate having a plurality of angled grooves, depositing powder in the plurality of angled grooves of the first plate, contacting the first plate to a second plate, and welding the first plate and the second plate together, and sintering powder to obtain a capillary structure.

Abstract: Systems and methods for repairing corrosion damage of a part of a thrust reverser assembly. The method includes removing the part having an inner surface and an outer surface. The method also includes removing an outer skin from the inner surface and the outer surface of the part. The method further includes installing a ply of synthetic fiber material onto an area of the inner surface or the outer surface of the part. The method also includes installing one or more doublers onto the ply of synthetic fiber material and heat curing layers of film adhesive. The method further includes applying an edge seal to gaps between the one or more doublers and the inner surface or outer surface of the part. The method also includes installing the outer skin to the inner surface and the outer surface of the part and installing the part to the thrust reverser assembly.

Abstract: An inner cavity near-net-shaping device for micro cast-rolling additive manufacturing of large-scale special-shaped pipe, includes a main transmission assembly, an inner cavity near-net-shaping assembly and a main feed assembly. The inner cavity near-net-shaping assembly comprises an inner cavity mold, an expansion cylinder and an expansion push rod, the expansion cylinder is provided with a gap in a direction of a thin wall thickness thereof, an inner cavity surface of the expansion cylinder is evenly distributed along a circumferential direction thereof with the inner wedge-shaped slider, and the expansion push rod comprises a first shaft section, a second shaft section, an outer wedge-shaped slider and a third shaft section, an outer surface of the second shaft section of the expansion push rod is evenly distributed along a circumferential direction thereof with an outer wedge-shaped slider.

Abstract: A method of bonding a mini-core to a surface of a core is provided. The method includes providing the mini-core with an attachment device that includes a protrusion of a surface of the mini-core, dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion and affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion.

Abstract: A composite blade made of prepreg obtained by impregnating reinforcement fibers with resin and curing the resin-impregnated reinforcement fibers, the composite blade including: a blade root provided on a base end and fitted into a blade groove; an airfoil provided extending from the blade root toward a tip end; and a metal patch provided between the blade groove and the blade root and placed on the blade root. The metal patch includes a plurality of projections protruding toward the blade root.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion having a front portion, a first interior cavity in the body portion having a first opening in the front portion, a second interior cavity at least partially surrounded by the first interior cavity and having a second opening in the front portion, a first filler material at least partially filling the first interior cavity, and a second filler material at least partially filling the second interior cavity. The first face portion is attached to the front portion to close the first opening. The second face portion is attached to the front portion to close the second opening. The first filler material and the second filler material have at least one different physical property. Other examples and embodiments may be described and claimed.

Abstract: A rotorcraft service fixture includes a fixture body and one or more rotor assembly connectors rigidly attached to or integral with the fixture body. The one or more rotor assembly connectors are sized and shaped to provide an interference fit with a portion of a rotor assembly of a rotorcraft to removably attach the fixture body to the portion of the rotor assembly. The rotorcraft service fixture also includes one or more support connectors rigidly attached to or integral with the fixture body. The one or more support connectors are sized and shaped to provide an interference fit with a partially detached component of the rotor assembly to immobilize the partially detached component during inspection or maintenance of the rotor assembly.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion having a toe portion with a toe portion edge, a hosel portion, a top portion with a top portion edge, a sole portion with a sole portion edge, a front portion, a back portion with a back wall portion, and an interior cavity having a first recessed portion having a center portion of the interior cavity including a maximum width of the interior cavity, and a second recessed portion at least partially surrounding the first recessed portion and located proximate to a perimeter portion of the body portion. A first filler material is in the first recessed portion, and a second filler material is in the second recessed portion. The first filler material and at least a portion of the second filler material engage an inner surface of the back wall portion.

Abstract: A computer-implemented method for marking an object on an aligner. The aligner surface is modeled. The method includes calculating a normal for each tile in a tessellated surface and disqualifying a tile from being selected. For tiles not disqualified, a patch is identified that produces a markable area. The method includes selecting an object to be marked, calculating a location of the object in the markable area, and providing the location of the object to a marking device. Disqualifying includes comparing an angle between a normal and an orientation of the beam to an origin of the calculated normal on each tile. Disqualifying includes disqualifying the at least one tile when the angle is outside of a range of ?90° to +90°. Identifying the patch includes separating the patch into at least two smaller patches, and one of the two smaller patches of tiles is the markable area.

Abstract: Disclosed is a cooled airfoil having a hub end and tip, an airfoil height being defined between the hub end and the tip. The airfoil has a leading edge, trailing edge, suction side and pressure side. The airfoil has a first airfoil height section adjacent the hub end and extending towards the tip, wherein, in a meridional view, the leading edge and trailing edge are straight along the first airfoil height section. The airfoil has a second airfoil height section adjacent the tip and extending towards the hub end, wherein, in a meridional view, the airfoil is concavely shaped at the leading edge and is convexly shaped at the trailing edge along the second airfoil height section. At least one cooling channel has a length principally extending along the airfoil height, extends straight in a first cooling channel length section, and is bent in a second cooling channel length section.

Abstract: A method of making a heat exchanger that includes sealing tubes to header slots and brazing the tubes to the header slots. The method further includes coupling a cover to the header to cover a liquid-side surface of the header and to cover ends of the tubes, and applying flux to an air-side surface of the header and to the tubes. Coupling the cover to the header is performed after sealing the tubes to the header slots and coupling the cover to the header is performed before applying flux to the air-side surface of the header and to the tubes. Applying flux is performed before brazing each of the tubes to the header slots and sealing each of the tubes to the header slot includes sealing a perimeter of each of the tubes to the header slot.

Abstract: A fastening system including a bolt with a shank defining a bolt axis and a bolt head secured to the shank. The bolt head includes a bolt head body with two channels therein, and two slots aligned with the channels. The channels and the slots extend between oppositely positioned axis-parallel surfaces. The channels are partially defined by internal walls in the bolt head body. The bolt head includes a cap surface transverse to the bolt axis. The system also includes a tool with a blade defining a tool axis, with a tip located at the second end. The tip is receivable in the channels. To rotate the bolt, the tip is positioned in a selected one of the channels, to align the tool axis with the bolt axis. Rotation of the bolt is urged by the tool, when the tool is rotated about the tool axis.

Abstract: A method of assembling a vehicle is disclosed, comprising the steps of (in sequence) providing a chassis structure, affixing a door inner panel to the chassis structure via a hinged attachment, at a location adjacent to a door opening defined by the chassis structure, attaching at least one external body panel to the chassis structure, attaching a door outer panel to the door inner panel via an adhesive fixing. In this way, the door inner panel can be attached in place during the build, at a position tailored to the needs of the seals provided between the door and the chassis structure. Production of the vehicle can continue, and in due course the exterior body panels can be fitted to the chassis structure. The door outer panel can then be attached to the door inner panel, using the tolerance in the adhesive attachment to adjust for panel gap and flushness of fit. The application also relates to a vehicle made in this way.

Abstract: A self-piercing rivet for joining workpieces comprises: a head defining a head diameter, and a shank which defining a shank diameter. The shank on a foot end opposite to the head, partially defines an axial recess which has an axial depth. The shank further includes a flat surface portion or a circular cutter on the foot end. And an axial circular recess is partially defined in a transition portion between the head and the shank.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion including an interior cavity, a filler material in the interior cavity, and a face portion having a front surface, a back surface, a face perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge.

Abstract: A turbine blade repair method is provided. The turbine blade repair method includes quantizing a position and a shape of a damaged portion of a turbine blade into numerical values, calculating a momentum loss of the turbine blade due to removal of the damaged portion, modeling a shape of a repair portion to replace the damaged portion so that the repair portion has the same momentum as the damaged portion, removing the damaged portion, and forming the modeled repair portion by performing an additive manufacturing at a position of the removed damaged portion.

Abstract: A fin manufacturing apparatus includes: a progressive pressing device that forms, by forming in a metal plate having thermal conductivity a plurality of openings for tube-insertion and a plurality of slits while leaving uncut portions, strips that each have openings along a longitudinal direction of the strip and are partially coupled to each other in a width direction; an inter-row cutting device that separates, by cutting the portions via which the strips are coupled to each other, the strips such that each strip has a width of the fin; a cutoff device that cuts the separated strips to a predetermined length; and a guiding device between the inter-row cutting device and an inter-row slit device that guides and supplies, to the inter-row cutting device, the strips that are partially coupled to each other in the width direction, are arranged in the width direction, and are conveyed in the longitudinal direction.