A tool for compressing a stented prosthesis. The tool includes first and second sets of rollers. The first set includes a plurality of rollers arranged to define a first working region having a first working diameter. The second set includes a plurality of rollers arranged to define a second working region having a second working diameter. The sets of rollers are arranged such that the working regions are axially aligned. The first working diameter is greater than the second working diameter. A stented prosthesis traversing the first working region and then the second working region is forced to a compressed state. In some embodiments, the tool includes one or more intermediate sets of rollers between the first and second sets of rollers, with each of the intermediate sets of rollers defining a working region having a working diameter. The respective working diameters progressively decrease in a downstream direction.

A tool for compressing a stented prosthesis. The tool includes first and second sets of rollers. The first set includes a plurality of rollers arranged to define a first working region having a first working diameter. The second set includes a plurality of rollers arranged to define a second working region having a second working diameter. The sets of rollers are arranged such that the working regions are axially aligned. The first working diameter is greater than the second working diameter. A stented prosthesis traversing the first working region and then the second working region is forced to a compressed state. In some embodiments, the tool includes one or more intermediate sets of rollers between the first and second sets of rollers, with each of the intermediate sets of rollers defining a working region having a working diameter. The respective working diameters progressively decrease in a downstream direction.

A system having a device for producing a pipeline unit from a pipeline having a pipeline outer surface and a pipe connector having a pipe connector outer surface. Also described is a method for producing the system.

A passive modification device comprising an elongated body extending along a first axis made of a shape memory alloy with a threshold contraction along the first axis at a threshold temperature. The modification device further comprises a passageway extending along a second axis shaped to surround a conduit line extending along the second axis. The modification device further includes a first modifying structure on a first portion of the passageway and a second modifying structure on a second portion of the passageway opposite the first modifying structure. Contraction of the elongated body can cause the first modifying structure and the second modifying structure to move towards each other; where movement of at least one of the first modifying structure or the second modifying structures can be configured to modify the conduit line. The conduit line may comprise mechanical cables, electrical conductors, optical fibers, or brittle portions that readily shatter.

Provided is a pipe joining body in which a wire rod and a tubular member are joined. The wire rod includes a concave portion formed by plastically deforming a part of an outer periphery of the wire rod. The tubular member includes a deformed portion that is formed so as to enter the concave portion by inserting the wire rod into the tubular member and by pressing a portion of the tubular member covering the concave portion toward the concave portion to plastically deform the portion. A maximum displacement amount of the tubular member when the deformed portion is formed is not larger than a maximum displacement amount of the wire rod by the plastic deformation when the concave portion is formed. The concave portion is formed by bringing a mold having a convex surface into contact with the part of the outer periphery of the wire rod to press.

Provided is a pipe joining body in which a wire rod and a tubular member are joined. The wire rod includes a concave portion formed by plastically deforming a part of an outer periphery of the wire rod. The tubular member includes a deformed portion that is formed so as to enter the concave portion by inserting the wire rod into the tubular member and by pressing a portion of the tubular member covering the concave portion toward the concave portion to plastically deform the portion. A maximum displacement amount of the tubular member when the deformed portion is formed is not larger than a maximum displacement amount of the wire rod by the plastic deformation when the concave portion is formed. The concave portion is formed by bringing a mold having a convex surface into contact with the part of the outer periphery of the wire rod to press.

Methods for producing connecting or junction elements, which in some cases may be utilized in steel structures of towers for wind turbines, may involve using a flow forming process to produce which a flange and a casing integrally adjoining the flange from a blank. Further, an end of the casing opposite the flange may be adapted to a contour of a component to which the casing is intended to be connected. In some examples, the casing may be formed with a second flange. Likewise, in some examples, at least a portion of the casing may have a conical design.

A method for joining members includes: providing a wall surface body which is a die-molded article provided with a hole portion with a draft angle provided from its opposite end portions toward its center portion, a tubular body with a hollow shape, and an elastic body; inserting the tubular body into the hole portion in the wall surface body; inserting the elastic body into the inside of the tubular body; and compressing the elastic body in the direction of an axial line L of the tubular body to expand the elastic body outwardly in the radial direction of the axial line L, thereby deforming and expanding the tubular body to joint the tubular body to the wall surface body by press-fitting.

A method for joining members includes: providing a wall surface body which is a die-molded article provided with a hole portion with a draft angle provided from its opposite end portions toward its center portion, a tubular body with a hollow shape, and an elastic body; inserting the tubular body into the hole portion in the wall surface body; inserting the elastic body into the inside of the tubular body; and compressing the elastic body in the direction of an axial line L of the tubular body to expand the elastic body outwardly in the radial direction of the axial line L, thereby deforming and expanding the tubular body to joint the tubular body to the wall surface body by press-fitting.

A pipe processing tool that is configured to deform the end of a pipe so that the circumferential shape of the end of the pipe generally matches the circumferential shape of an adjacent pipe end. Matching the circumferential shapes of the pipe ends is advantageous during a pipe attachment process. The pipe processing tool can include a deformation ring with a plurality of pipe deformation members. Each pipe deformation member faces radially inward and is actuatable in a radial direction toward and away from the center of the deformation ring in order to permit engagement with the pipe. Each pipe deformation member is individually and separately actuatable from the other pipe deformation members so that the circumferential shapes of the pipes can be altered by controlling suitable ones of the pipe deformation members.