Abstract: A preparation method of a uniform low stress cone shaped charge liner includes the steps of multi-pass extrusion forming, vibration aging treatment, and cryogenic treatment. The step of multi-pass extrusion forming refers to 4 to 8 passes of extrusion deformation under the actions of a three-dimensional compressive stress and a deformation rate of 5 to 10 mm/s, having a deformation amount of 5 to 50% for each pass. The shaped charge liner prepared by the present invention has high dimensional accuracy, good geometric symmetry, low stress value, and excellent stability in the precise machining process and in use, which may significantly improve the penetration capability and stability of the shaped charge liner of high-explosive anti-tank warheads.

Abstract: A heat shield panel including: a first surface; a second surface opposite the first surface; and a plurality of cooling apertures extending from the first surface to the second surface through the heat shield panel, each of the plurality of cooling apertures are oriented at a non-normal angle relative to the second surface.

Abstract: An assembly apparatus includes a retainer, a position measurement device, and a machining device. The retainer is configured to hold an assembly. The position measurement device is configured to measure a difference between an intended machining position and an actual machining position of a first coupling hole in a first assembly component. The first coupling hole is capable of being coupled to the assembly. The machining device is configured to form a second coupling hole capable of communicating with the first coupling hole in the assembly based on a reference position set on the assembly and the difference.

Abstract: A machining method for forming an opening through a workpiece, serving as a green compact, by moving a milling tool in a radial direction relative to the workpiece is provided. The milling tool includes a first milling tool and a second milling tool. The method includes a pre-machining step of using the first milling tool, and forming the first sidewall surface by rotating the first milling tool so as to cause cutting edges of the first milling tool to cut the workpiece from the acute angle corner to the obtuse angle corner, while leaving a cutting allowance on the second sidewall surface; and a post-machining step of using the second milling tool whose cutting edges are reversed from the cutting edges of the first milling tool, and forming the second sidewall surface by rotating the second milling tool so as to cause the cutting edges of the second milling tool to cut the cutting allowance from the acute angle corner to the obtuse angle corner.

Abstract: A method for joining a modular hot gas component by welding and high-temperature soldering. In order to optimally join high-temperature components, a first component is plugged into pins of a second component, a soldering material is placed between the two components, and the pins of the second component are welded to the first component.

Abstract: Methods of manufacturing a bladed stator element for a turbomachine include mounting a tool on a circumferential zone of an annular shell prior to welding vanes in the circumferential zone, welding radially outer ends of the vanes to the annular shell, dismantling the tool after welding the vanes in the circumferential zone, and repeatedly mounting and dismounting the tool on different circumferential zones of the annular shell so as to fix the vanes all around the annular shell.

Abstract: A wheel bearing device (1) including: an outer member (2) on the inner periphery of which an outer-side rolling surface (2c/2d) is formed; an inner member (3) on the outer periphery of which an inner-side rolling surface (3c/3d) is formed; and a plurality of rolling bodies (41) interposed between the rolling surfaces (2c/2d/3c/3d) of the outer member (2) and the inner member (3). The wheel bearing device having a spline hole (3b) formed in a through hole (3h) of the inner member (3). The spline hole includes a guide groove (3G) formed on an inner circumferential surface thereof. A guide plate (8G) of a finishing broach (8) passes through the guide groove in the inner periphery of the spline hole (3b).

Abstract: Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.

Abstract: A method for continuous generating grinding of at least two gear workpieces with a topologically modified grinding worm comprising a topologically modified worm region to grind tooth flanks which are topologically modified on the gear workpieces, wherein the method comprises at least the following steps: a) providing a first gear workpiece, b) performing a topological generating grinding operation by carrying out relative movements between the first gear workpiece and the grinding worm, which comprises a relative feed movement, a relative axial feed which occurs parallel or obliquely to the tool rotation axis, and a relative shift movement, c) providing the second gear workpiece, d) performing a relative jumping motion extending substantially parallel or obliquely to the tool rotation axis between the second gear workpiece and the grinding worm, e) repeating step b) for the second gear workpiece.

Abstract: A method of connecting an expansion ring to at least one end of a braided implant, the method including positioning the braided implant about a tube; everting an end portion of the braided implant over a first end of the tube; assembling an expansion ring to the braided implant, the expansion ring being a multi-leaved expansion ring comprising clips terminating with an open-ended coupling opening, wherein the openings are pushed over a set of intersecting wires of the braided implant at respective circumferential locations on or adjacent the first end of the tube; closing the openings over the set of intersecting wire; trimming ends of the braided implant; and reversing eversion of the braided implant thereby positioning the expansion ring internal to the braided implant.

Abstract: The invention provides a method and a product for manufacturing a titanium alloy dual-structure turbine disk based on partial hydrogenation, which includes the following steps: coating a glass coating on the partial surface of a titanium alloy billet where hydrogen-blocking is required, and sintering the titanium alloy billet coated with the glass coating; performing hydrogenation treatment on the titanium alloy billet, such that the hydrogen concentration at the hydrogenation-required portion reaches the predetermined level; removing the glass coating from the titanium alloy billet; preheating the titanium alloy billet, and then performing high temperature die forging in the forging dies; performing vacuum dehydrogenation treatment on the forged turbine disk to remove hydrogen element inside the forging, so that the hydrogen content is 0.015 wt. % or less.

Abstract: A tooth groove machining method includes: defining a shift angle as a phase correction angle in skiving when shifting a reference point of a predetermined tooth groove of a workpiece in a circumferential direction of the workpiece; machining a first tooth side surface by the skiving with a gear cutting tool, by setting an intersection angle to a predetermined intersection angle, and by setting the phase correction angle to a first phase correction angle; and machining a second tooth side surface by the skiving with the same gear cutting tool as the gear cutting tool that machined the first tooth side surface, by setting the intersection angle to be the same with the predetermined intersection angle, and by setting the phase correction angle to a second phase correction angle different from the first phase correction angle.

Abstract: A wind turbine blade includes a base member formed of FRP and having a blade shape, an intermediate layer arranged on the base member and formed of metal, cermet, ceramic, or a mixture of at least one thereof and resin as a major constituent, and an erosion-resistant overcoat arranged on the intermediate layer and formed of a spray film having a porosity of 5% or lower.

Abstract: A method produces a composite component from a first joining element and a second joining element by use of an adhesive and a flow drill screw. Before attaching the second joining element to the first joining element, a recess is made around the at least one screw position in which the respective flow drill screw penetrates the second joining element, in a joining surface of the second joining element.

Abstract: Provided is a lifting tool for lifting a wind turbine blade by means of a crane for subsequent assembly with a wind turbine, the lifting tool having at least one attachment means for attachment to the crane and at least one holding device for holding the wind turbine blade, whereby the at least one holding device is connected to a controller of the lifting tool and the holding device includes at least one movable supporting element for supporting the wind turbine blade and at least one actuator connected to the at least one movable supporting element and controlled by the controller so that the movable supporting element is movable by means of the actuator. Further provided is a lifting arrangement, a wind turbine installation environment and a method for assembling a wind turbine blade with a hub of a wind turbine.

Abstract: A service table for transporting a battery pack comprises four frame members arranged end-to-end in a circuit, four hinges between adjacent frame members, and wheels. The service table further comprises a support bed mounted to at least one of the frame members and configured to support the battery pack. At least one hinge lock is disposed between adjacent frame members and arranged to be rigidly fixed to both of the adjacent frame members in a locked configuration and arranged to be decoupled from at least one of the adjacent frame members in an unlocked configuration. The frame members are arranged in a service configuration having a first width when the hinge lock is arranged in the locked configuration for transporting the battery pack thereon and in a storage configuration having a second width, less than the first width, when the hinge lock is arranged in the unlocked configuration.

Abstract: The present invention relates to a quick clamping device.

Abstract: A system and method of connecting a cargo rack to a vehicle having a convertible, retractable or removable roof system. Reinforced frame sections of the vehicle are exposed by removing access panels and/or any obstructing trim. Attachment brackets are mounted to the reinforced frame sections The attachment brackets extend above the roof well and into a gap space below the canopy of the roof system. A crossbar is mounted between the attachment brackets. The crossbar has a flat top surface that contains a plurality of receptacles. Various mounting accessories are provided, wherein each of the mounting accessories is configured to be selectively received by any one of the receptacles.

Abstract: A lift system mountable in a nacelle of a wind turbine has a boom having a proximal end mountable in the nacelle and a distal end extending over a hub of a rotor of the wind turbine when the lift system is mounted in the nacelle. The lift system has a frame structure for mounting the proximal end of the boom in the nacelle, a winch mounted to the boom, a fastener situated below the boom and operatively connected to the winch by at least one cable, and a trolley movably mounted to the boom to permit translation of the trolley longitudinally along the boom thereby permitting longitudinal movement of the fastener with respect to the boom.

Abstract: The apparatus and method for splicing substantially flat continuous material comprises a transport unit for transporting a first substantially flat continuous material and a second substantially flat continuous material to a splicing location. The transport unit is adapted to transport the first substantially flat continuous material and the second substantially flat continuous material parallel to each other forming an overlap portion of the first substantially flat continuous material and the second substantially flat continuous material in the splicing location. A pressure unit is arranged in the splicing location. The pressure unit is adapted to apply a mechanical impact onto at least a part of the overlap portion of the first substantially flat continuous material and the second substantially flat continuous material, thereby at least partially merging the first substantially flat continuous material with the second substantially flat continuous material.