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.

Abstract: A method for manufacturing a component of a rotary machine, the component extending to an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end of a core of a center of the component and to a second end at a radial limiting surface of the component and which is at least partially closed. A blank includes the core of the component and is limited by an outer surface in the radial direction. The blank is subtractively processed in a first subtractive process step, such that an outer contour is elaborated in the area of the outer surface, which extends in the radial direction, and a part of the channel is manufactured, which radially extends in the blank to the first end. The channel is finished by a build-up process on the blank.

Abstract: Apparatuses and methods for facilitating fastening of a fastener are provided. In one example, the apparatus includes a body portion that extends distally from a body proximal portion to a body distal portion. A head portion extends distally from the body distal portion. A first prong that extends distally from a first prong proximal section that has a first thickness to a first prong distal section that has a second thickness that is less than the first thickness. A second prong that extends distally from a second prong proximal section that has a third thickness to a second prong distal section that has a fourth thickness that is less than the third thickness. The second prong is spaced apart from the first prong to define a gap therebetween that is configured to receive the fastener.

Abstract: A centrifugally cast composite roll for rolling comprising an outer layer and an inner layer, which are integrally fused to each other, the outer layer being made of an Fe-based alloy comprising by mass 1.70-2.70% of C, 0.3-3% of Si, 0.1-3% of Mn, 1.1-3.0% of Ni, 4.0-10% of Cr, 2.0-7.5% of Mo, 3-6.0% of V, 0.1-2% of W, 0.2-2% of Nb, 0.01-0.2% of B, and 0.01-0.1% of N, the balance being Fe and inevitable impurities, and the inner layer being made of ductile cast iron.

Abstract: A method of manufacturing a heat sink includes a rib portion forming step of forming a rib portion on a substrate having a flat plate shape in such a manner that a first groove and a second groove are formed on a front surface side of the substrate by plastically deforming the substrate by a press thus forming the rib portion in a region sandwiched between the first groove and the second groove. The method further includes a back surface protruding ridge portion cutting removal step of removing protruding ridge portions formed on a back surface side of the substrate by cutting. The method further includes a fin forming step of forming a plurality of fins by working the rib portion; and a heat sink separating step of obtaining the heat sink by separating a portion within a predetermined range which includes the fins from the substrate.

Abstract: A mechanical seal clamping assembly includes a base, a fulcrum, a lever, and a cap. The base supports a mechanical seal. The lever is pivotally coupled to the fulcrum at a first pivot spaced from the base. The cap is coupled to the lever and is movable by the lever with respect to the base. The cap is movable from a first position to a second position. In the first position, the cap is at a first distance away from the base. In the second position, the cap is at a second distance away from the base larger than the first distance. The lever moves the cap from the second position toward the first position to engage the mechanical seal to clamp, between the cap and the base, the mechanical seal to maintain a spring of the mechanical seal compressed during assembly or disassembly of the mechanical seal.

Abstract: A method for sealing a high-temperature heat pipe includes: (1) necking and reducing two ends of the heat pipe separately, so as to obtain a necked end and a reduced end; (2) sealing the necked end by laser welding or electron beam welding; (3) placing the heat pipe in an inert gas glove box, and pouring a working medium without impurities into the heat pipe; (4) heating the heat pipe, connecting the reduced end to a vacuum pump, pumping gas inside the heat pipe by the vacuum pump to vacuumize the heat pipe, such that pressure in an inner cavity of the heat pipe reaches a target pressure, and flattening the reduced end; and (5) sealing an opening of the flattened reduced end by electron beam welding or laser welding, so as to obtain the high-temperature heat pipe.

Abstract: A method of fabricating a catalytic reactor assembly having an outer tube and an inner tube is provided. The method may include inserting a catalyst into the outer tube and inserting the inner tube through the catalyst. The method may further include radially expanding the inner tube against the catalyst.

Abstract: A system and method is presented wherein a disposable pod having two chambers, each of which can be either wet or dry and contain a variety of substances, is sized to fit distinct brewing systems offered by third parties, such that the puncturing and water dispensing functionality of such brewing systems cause the mixture of the variety of substances in the two chambers resulting in a wide range of beverages.

Abstract: The method provides for the manufacturing a sensor bearing unit including a bearing having a first ring and a second ring capable of rotating concentrically relative to one another, and an impulse ring provided with a target holder secured to the first ring and with a magnetic target mounted on the target holder. The method further includes securing the target holder to the first ring, and magnetizing the magnetic material of the magnetic target after the step of securing the target holder to the first ring.

Abstract: The invention relates to a method for connecting a connection section (33) of a hose (3) with a plug-in connector (4). The plug-in connector (4) comprises a connector body (6), which connector body (6) has a ring space (22). In a first method step, the connection section (33) is pushed into the ring space (22) of the plug-in connector (4) of the hose (3) from the hose accommodation side (25) of the connector body (6), and positioned there; in a second method step, a pressing tool (50) deforms the first mantle section (12) of the connector body (6).

Abstract: Disclosed is a paper-sheet-feeding/conveying roller having a shaft, and a bi-layer roller material which is formed of an inner layer provided on the shaft and an outer layer. The inner layer provided on the shaft is a foamed elastic layer. The outer layer provided on the foamed elastic layer is a non-foamed elastic layer. The foamed elastic layer is formed of a foamed elastic body of silicone-modified EPDM.

Abstract: One aspect is a system for securing an external structure to overlapping surfaces. The system includes a housing having a bore extending from a first surface of the housing to an opposite surface of the housing. The system further includes a rotor that has an inner bore and is arranged radially inward from the housing bore. An extending member is attached to the rotor and arranged radially inward from the inner bore. Additionally, a fastener member is engaged with the extending member.

Abstract: A hardfacing metal composition and method of restoring worn work string tubing by application of a hardfacing metal to the worn regions of the work string tubing.