The present invention provides a method for producing a full engagement Pittsburgh male lock using specific cutting assemblies and protocols that reduce the amount of metal that is removed from the male portion of the corner notches in the duct. Forming of the male portion of the lock is done after the connecting flange forming has been completed as opposed to before the connecting flange forming has been completed.

Methods for forming seamless and jointless metal parts suitable in a manufacturing environment are disclosed. The metal parts can be used in the manufacture of electronic devices and accessories of electronic devices, such as connectors. In particular embodiments, the methods involve forming a seamless cylindrical tube. The seamless cylindrical tube can then undergo a series of shaping processes that retain and exterior seamless surface of the tube. In some embodiments, the shaping processes include a hydroforming process. The methods can be performed without the use of dovetails and other types of visible joints that can complicate the manufacturing process and result in a part with aesthetically unappealing visible joints and seams.

An apparatus for forming the profile of deformable materials including tubular sections. The apparatus (1) includes at least two sets (4, 5) of die elements (6), each set (4,5) including a plurality of die elements (6) respectively arranged to travel along corresponding endless path. The paths each include a forming portion (9,10) in which die elements (6) of each set (4. 5) are opposed to define a forming space (11) therebetween. The forming portion (9, 10) of each path is configured so that one or more dimensions of the forming space (11) reduce along the length of the forming portion (9,10) to simultaneously apply lateral forces to material progressing through the forming portion.

A method and apparatus manufactures a closed structure part without flange having a curvature and welded edges along a longitudinal direction of the part and further having a varying cross-sectional shape, from two metal plates. Each of two metal plates provided with a curvature along the longitudinal direction of the plate and provided with both ends in a width direction of the plate, are press-formed such that a folding line is formed at positions corresponding to a non-welded bent edge in a cross section of the part, and stacked on each other vertically such that their bulging sides face outward. Their left ends and right ends in the width direction are mutually welded along the longitudinal direction to form welded edges.

A synchronization rod for furniture drives for the synchronous moving of movable furniture parts, includes a coupling portion for connection to a furniture drive and a synchronization portion along a length of the synchronization rod, more particularly arranged between two opposite coupling portions. The synchronization portion, as seen in a cross-section taken orthogonally to the length, has a first outer contour portion in the form of a circular segment and a further outer contour portion, preferably adjacent to the first outer contour portion, having a geometry in a form that is not a circular segment. The circular segment comprises an angular range of between 250 and 330 and/or an angular range of between 180 and 350, and the further outer contour portion is arranged exclusively on one side of the synchronization rod.

The invention is a structural metal tube with a built-in thermal break composed of only four components, two metal extruded portions and two composite strut portions. The thermal break between the metallic portions interrupts the otherwise high thermal conductivity that would exist if the metallic portions were joined. The low-thermal-conductivity composite strut portions disrupt the thermal conductivity between the metallic portions.

Disclosed is a manufacturing apparatus for a tubular body of an electric vehicle rectangular battery can, configured to precisely manufacture the tubular body of the rectangular aluminum battery can using only aluminum extrusion, to use aluminum alloy 6063 having significantly increased strength after heat treatment compared to aluminum alloy 3003 so as to perform a cutting process without a cold working step, to adjust a bearing length for each portion of an extrusion mold depending on a thickness of an extrusion tubular body to be extruded from the extrusion mold so as to increase flatness of the extrusion tubular body, and to reduce a thickness tolerance. The manufacturing apparatus includes a flattening means installed at an outlet of the extrusion mold and configured to pressurize upper and lower surfaces of the extrusion tubular body, thereby maintaining flatness of the extrusion tubular body and preventing dimensional deformation thereof.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.