Abstract: A method for manufacturing a liquid fueled rocket engine involves forming a first flange in apposition to a top end of a first tube, fixing an injector head to the first flange to form an inner shell liner assembly, shaping the inner shell liner assembly, forming a second flange in apposition to a top end of a second tube, positioning the inner shell assembly inside the second flanged tube and fixing the second flange to the injector head. Rocket engines manufactured using the method have performance superior to existing rocket engines in at least one parameter.

Abstract: An attachment assembly includes a conically tapered missile body interface surface of a missile body attachment interface wedged against a conically tapered missile component interface surface of a missile body attachment interface. The missile body attachment interface also includes an engagement rod for locked engagement by a hook of the missile component attachment interface. Specifically, the missile component attachment interface includes an auto-adjusting assembly having a series of pivoting arms connected to a rotatable engagement drive at a first end thereof and a hook at a second end thereof. The auto-adjusting assembly is moveable between a first position and a second position, and between the second position and a third position. The missile component attachment interface includes a pre-loaded over-center mechanism operably coupled to the auto-adjusting assembly and configured to lock the hook in engagement with the engagement rod in the third position.

Abstract: Methods and devices for controlling a mechanical joining or forming process, in particular friction drilling in thin-walled materials, apply several reverse pulses acting on a process parameter to bring the course of an actual curve of the parameter more into line with the course of a predetermined nominal curve of the process parameter. The number and length of the reverse pulses and the length of the intervals between the pulses are determined as a function of at least one immediately detectable variable associated with the process parameter.

Abstract: The present invention relates to a method for the design and manufacture of a dental component with a surface, wherein a 3D model of the dental component is designed by means of a CAD unit and the dental component is manufactured by a CAM unit on the basis of the 3D model.

Abstract: A method for mounting on a clamp parts or profiles in a processing center provided with a supporting frame for a turntable, comprising a robot for the loading/unloading of the profiles to be worked and of the subsequently worked profiles. The method provides for the steps of inserting the profile to be worked, by means of the robot, in a region arranged below at least one first open clamp; resting the profile to be worked on at least one first lower fixed reference, resting the profile to be worked on a second and/or third front fixed reference, resting the profile to be worked on at least one fourth lateral fixed reference, laterally closing the profile to be worked and then upper closing of the profile to be worked.

Abstract: A method and a plant for the production of a rim for a wheel of a vehicle. At first and by means of an additive manufacturing process, a temporary rim is manufactured, which is provided with a central hub, with a raw ring arranged around the central hub and with a series of spokes, which are radially arranged and connect the raw ring to the central hub; subsequently, the temporary rim is subjected to a flow-forming process, which deforms the raw ring determining an axial lengthening thereof, which transforms the raw ring into a channel having the desired final shape.

Abstract: A sheet feed shaft includes a metallic rod, and a plurality of projections formed by plastic working to rise in a circumferential direction at a plurality of regions in the circumferential direction and in an axial direction on a peripherical surface of the metallic rod. ? and ? satisfy following relations (a) and (b) in a range that the ? is not less than 300 and not more than 110°, ?0=?0.002?2+0.854??3.72,??(a) 0.85×?0???1.15?0,??(b) where an apex angle of the projections viewed from the circumferential direction of the metallic rod is defined as ?, and an apex angle of the projections viewed from an axial direction of the metallic rod is defined as ?.

Abstract: The invention relates to a method which comprises making a hole in a metallic support of an absorber tube, putting a vacuum pump in fluid communication with the chamber of the absorber tube by means of the hole, actuating the vacuum pump to generate a vacuum in the chamber until reaching a predetermined vacuum threshold, and introducing an inert gas inside the chamber and performing a plurality of sweeps with said inert gas, removing hydrogen from the chamber, allowing to thus reduce or remove the accumulation of hydrogen in said chamber, such that, as a result, at least part of the hydrogen absorption capacity of the getter material is recovered.

Abstract: An apparatus configured to support a diffuser segment during removal from and installation into an assembly. The apparatus includes a body having two or more supports and at least two clamp rods. The clamp rods each extend from a first end to a second end. The body defines a pocket extending between the supports on a first side of the clamp rods. An end clamp releasably mates with the second end of each clamp rod. The end clamp has a foot extending into the first side of the clamp rod. A wheel is received within each support. The pocket and the foot of each end clamp releasably retain a diffuser segment and the wheels rotate to allow the diffuser segment to be removed without damaging a surface coating of the diffuser segment.

Abstract: A method for manufacturing a T-shaped structure includes depositing one or more layers of weld beads over a portion of a surface of a first component such that the one or more layers of weld beads develop a metallurgical bond with the portion. Also, the method includes placing an end of a second component over the one or more layers of weld beads such that the end develops a metallurgical bond with the one or more layers of weld beads. The one or more layers of weld beads define a fully penetrated weld joint between the end and the portion to form the T-shaped structure.

Abstract: The invention relates to a dental prosthesis part production method, wherein: a dental prosthesis part model is generated taking into account a dental model; a load analysis of the dental prosthesis part model is carried out; a first reinforcing structure model having a first shape and position is arranged inside the dental prosthesis part model and the dental prosthesis part model is reduced by a volume corresponding to the arranged first reinforcing structure model; the reduced dental prosthesis part model is divided into a lower partial volume and an upper partial volume; a lower part of the dental prosthesis part is produced from a first composite material according to the lower partial volume by means of the 3D printer; a first reinforcing structure corresponding to the first reinforcing structure model is arranged on the first part of the dental prosthesis part; and, by means of the 3D printer using the first composite material, an upper part of the dental prosthesis part according to the upper partial

Abstract: Systems and methods are provided for inspecting installation of a fastener. One method includes monitoring hydraulic pressure of a tool that is installing the fastener, detecting that the hydraulic pressure has dropped by more than a threshold amount within a period of time, determining that a pintail of the fastener has snapped in response to the detecting, and reducing the hydraulic pressure in response to the determining.

Abstract: Disclosed are example embodiments of a milling bur specifically designed to mill a dental prosthesis from a full-sintered zirconia blank. The milling bur comprises a milling tip configured to have a factor of safety of at least 2 by having a first coverage-percentage of grinding particles covering a surface area of the tip of the milling bur. The factor of safety is a number of time the milling bur can fully mill a dental prosthesis from a fully-sintered zirconia blank.

Abstract: The invention relates to a mobile, in particular portable, pin pulling device for pulling/inserting pins for connecting components of a construction machine, in particular of a crane, wherein the pin pulling device is designed in compact construction and has at least one electric drive having a rechargeable battery and a linear actuator drivable by the drive to move at least one pin.

Abstract: An adjustable support device can include a main body; a pin housed within the main body that is vertically adjustable and has external threading; and a wheel cap attached to the top of the main body and having internal threading, wherein the wheel cap and the pin are threadedly engaged. The adjustable support device can include a plug positioned below the main body; and a shoulder screw configured to removably connect the plug to the main body. The plug can be comprised of a compressible material and can be tapered from its top to its bottom. The shoulder screw can be insertable through the center of the plug, and the shoulder screw can be configured to threadedly connect to an interior of the main body. The adjustable support device can include a cap grip interconnected with external surfaces of the wheel cap; and a lower grip connected to a bottom of the main body.

Abstract: A multipoint fuel injection system comprises an injection system segment including a circumferentially extending outer support defining a fuel manifold with a plurality of manifold passages extending circumferentially therethrough. A first connector is included at a first circumferential end of the outer support and a second connector is included at a second circumferential end of the outer support opposite the first circumferential end. The first and second connectors are each configured to connect each manifold passage with a manifold passages of a respective outer support of a circumferentially adjacent injection system segment. The system includes a circumferentially extending inner support and a plurality of circumferentially spaced apart feed arms extending radially between the inner support and the outer support. A plurality of outlet openings extend in an axial direction from each feed arm for feeding respective injection nozzles.

Abstract: A three-dimensional additive manufactured product includes a body portion and a male screw portion integrally disposed on a surface of the body portion so as to protrude therefrom. The male screw portion includes a following side flank forming a first flank angle with respect to a vertical plane to an axis thereof. The first flank angle is not less than 45 degrees.

Abstract: The invention provides a method of manufacturing a transition piece that has a high degree of freedom in adjustment of a length, a shape, or the like, can carry out a dissimilar metal welding easily, and is easy to perform, and a transition piece. The transition piece includes one end having the same composition as one material to be welded, another end having the same composition as another material to be welded, and an intermediate layer formed between the one end and the other end. The composition of the one end and the composition of the other end become the same as approaching a center. In the method of manufacturing the transition piece according to the invention, at least the intermediate layer among the one end, the other end, and the intermediate layer is formed by a additive manufacturing method.

Abstract: A thin-skin support member is provided. The thin-skin support member may include a semi-circular edge and a flat edge that define a hollow cavity. A cylindrical cavity may be adjacent the hollow cavity and at least partially defined by the semi-circular edge. The cylindrical cavity may be configured to retain a strut assembly. A mounting interface may be coupled to the semi-circular edge and the flat edge. A torsion interface may be disposed adjacent the cylindrical cavity and configured to receive a torsion link. The thin-skin support member may be made using additive manufacturing and thus may have a grain structure grown in the direction of material being added.

Abstract: A method of manufacturing a hollow coil spring which is made of a hollow wire in which a terminal sealed portion is formed on an end portion of the wire. The terminal sealed portion has a rotationally symmetric shape in which an axis passing through the center of the wire is the symmetric axis. The hollow coil spring includes an end wall portion, and an end face arc-shaped curved surface. The end wall portion includes an end face perpendicular to the axis. A distal-end-center closure portion is formed on the axis at the center of the end wall portion. A spring seat includes a base member and a sheet member. An end turn portion of the hollow coil spring is in contact with the sheet member. The end face of the end turn portion is opposed to a stopper wall of the spring seat.