Abstract: A strengthening member for an automotive vehicle comprises an eight-cornered cross section including sides and corners. The sides comprise four straight sides and four curved sides. A length of each straight side ranges from about 10 mm to about 200 mm and a length of each curved side is about 10 mm to about 200 mm.

Abstract: Hollow decorative tubing fabricated from thin walled metallic stock material, the stock material preferably being stock tubing. Tubing is cold worked to impart any desired design such as simulated bamboo having realistic culm and node characteristics. The tubing is preferably formed into serial or repeating sections, each characterized by the desired design. For simulated bamboo, a realistic node is worked into the tubing between adjacent sections. The invention may be regarded as a method for manufacturing the resultant elongate hollow decorative tubing or, alternatively, an article of manufacture such as a chair incorporating the resultant elongate simulated bamboo article.

Abstract: Methods of forming a lined tubular member are described herein. A method includes forming at least one corrugated portion in a conduit having at least one substantially tapered end to form a corrugated conduit, providing the corrugated conduit to a tubular member; and expanding the corrugated conduit while the corrugated conduit is inside the tubular member.

Abstract: A computing system is communicated with a metal fabrication device for analyzing performance of an industrial robot. The metal fabrication device includes the industrial robot, and a plate bender. The computing system is operable to generate an analysis report of the performance of the industrial robot by providing section model creating function, bending point obtainting function, bending operation monitoring function, workpiece modeling function for the metal fabrication device. The quality of a finished workpiece bent by the industrial robot from a metal plate may be analyzed from the analysis report generated by the computing system.

Abstract: A driveshaft assembly includes a tubular slip member having a first spline member having a plurality of splines formed thereon having a first tolerance and a second spline member having a plurality of spline sections. The plurality of spline sections includes a plurality of splines formed thereon having a second tolerance. The second spline member cooperates with the first spline member. A zone is disposed on the second spline member and has a first profile. The zone is disposed adjacent to at least one of the plurality of spline sections of the second spline member, and the first profile defines a clearance relative to the first spline member.

Abstract: A toothed rack has hollow sections and a longitudinal axis that extends parallel to a longitudinal direction and which in the hollow region includes a wall encompassing the longitudinal axis of the toothed rack in a circumferential direction and in at least a subregion comprises a toothing. In the circumferential direction spaced apart from the toothing, at least one local attenuation and/or holding edge is developed in the wall, which, with respect to the longitudinal direction of the toothed rack, extends at least over a portion of the length of the toothing next to the attenuation.

Abstract: A corrugated conduit and method of expanding to form a lined tubular member are described. In some embodiments, a corrugated conduit may be expandable. The corrugated conduit may be inserted into a tubular member and hydraulically or otherwise expanded against walls of the tubular member to strengthen and/or seal the tubular member when the corrugated conduit is expanded in the tubular member. In certain embodiments, the tubular member is a drill stem.

Abstract: The invention relates to a method for producing longitudinal grooves in cylindrical workpieces using a rolling deformation method preceded by a performing method.

Abstract: Provided is a method of manufacturing a hollow power transmission shaft, which makes it possible to ensure stable quality even when there is a difference in wall thickness or hardening ratio along an axial direction thereof. A hollow shaft material (1?) is provided with, on an outer peripheral surface (1g) side thereof, for example, a movable induction heating coil (5) wrapped therearound. While a high-frequency current with a predetermined frequency is caused to flow through the induction heating coil (5), the induction heating coil (5) is axially moved to perform induction hardening of the hollow shaft material (1?) from the outer peripheral surface (1g) side.

Abstract: A conduit modifier may be used to corrugate at least a portion of a conduit. The conduit modifier may include at least a first plurality of rollers arranged in a first pattern around a passageway. The first plurality of rollers may form ridges and grooves lengthwise along a conduit passing through the passageway. A second plurality of rollers arranged in a second pattern around the passageway may compress ridges formed by the first set of rollers. The ridges may be formed such that a distance from a central axis of the conduit to a highest portion of an outer surface of a ridge is substantially equal to a distance from the central axis of the conduit to an outer surface of the un-corrugated portion of the conduit. The corrugated portion of the modified conduit may be expandable.

Abstract: A method for producing a, in particular thin-walled, pipe conduit element with a surface structure reinforcing the pipe conduit element is proposed wherein the pipe conduit element continuously passes by at least one embossing element guided about the periphery of the jacket thereof and the surface structure is embossed onto the jacket of the pipe conduit element by the embossing element using pure mechanical pressure. For embossing the surface structure onto the pipe conduit element, an arrangement of preferably several embossing elements, in particular balls or rollers are used which are distributed about the periphery of the pipe conduit element jacket. The invention also concerns a device for producing a surface structured pipe conduit element using a guidance having embossing elements and which can be rotated about the periphery of the jacket of a pipe conduit element continuously supplied to the device.