Embodiments are directed to nozzles for three-dimensional printing and related nozzle assemblies and methods. An example nozzle includes at least one top surface, at least one bottom surface, and at least one nozzle lateral surface extending from or near the top surface to or near the bottom surface. The nozzle also includes at least one conduit surface defining a conduit. At least a portion of the conduit surface comprise at least one of polycrystalline diamond (“PCD”), polycrystalline cubic boron nitride (“PcBN”), or another suitable superhard material. The nozzle may be attached to a base to form a nozzle assembly. The nozzle may be attached to the base by at least one of deforming the base relative to the nozzle, threadedly attaching (either directly or indirectly) the nozzle to the base, or press-fitting a hollow hollowed-sleeve into a passageway defined by the base.

A hollow punch rivet is described having a flange and a rivet section. Furthermore, a method for the attachment of individual components to one another using a punch rivet is described, with at least one of the components being formed by a material of the composite material. The method includes the following steps: a) arrangement of the die button against one of the two components to be secured to one another, which are placed on one another, wherein the die button has a bore which is dimensioned to receive the rivet section, b) carrying out a relative movement of the punch rivet with the free end of the rivet section to the fore towards the components arranged on one another and in the direction of the die button, c) piercing of the components with the free end of the rivet section and introduction of the rivet section into the bore of the die button until the component contact surface comes into contact and the component adjacent to the flange, d) using a plunger in order to dilate the punch rivet at least locally and e) forming a rivet bead by reshaping the free end region of the rivet section.

The disclosed technology includes a catheter or sheath assembly and a method for manufacturing same. The manufacturing process includes obtaining a catheter or sheath having a distal end and a proximal end, and obtaining a hub pre-formed separately from the catheter or sheath. The hub can include a pre-formed receptacle portion configured to receive a portion of the catheter or sheath. A portion of the catheter or sheath can be inserted into the pre-formed receptacle portion of the hub. The receptacle portion can be melted to a semi-fluid state and can be compressed against the portion of the catheter or sheath in the hub.

A novel design of a polymer retention hub created having an innovative feature used to permanently attach a thin wall nozzle core without use of adhesives or ancillary parts to form a conjunct nozzle. Additional polymer in the correct amount is molded into a polymer retention hub in close proximity to a location where a mechanical lock must be formed to join the two components together. The inventive design of the polymer retention hub is configured to produce an enclosed cavity with the strength required for separation of a nozzle core from a standard taper.

A method for manufacturing an spray device includes assembling at least one spray nozzle plate into a thermoplastic holder, while controlling the temperature of the spray nozzle plate and/or the holder and as a result at least locally plastically deforming the holder permanently. After the thermoplastic deformation of a seat of the holder, a diameter of the seat of the holder upstream of the spray nozzle plate exceeds a diameter of the seat of the holder downstream of the nozzle plate. The thermoplastic holder may have a tapered seat, where the smallest cross section of the tapered seat is smaller than the spray nozzle plate, where a widest side of the tapered seat is pointing towards a supply side of the liquid.

The present invention relates to a sonotrode for crimping an edge of a container having an end face, which is intended to contact the edge of the container during a relative movement along a longitudinal axis, wherein the end face comprises a crimping portion, at least portions of which form an angle with the longitudinal axis that is greater than 0° and is less than 90°, and the crimping portion is intended to contact the edge being crimped.

A brush product, in particular a toothbrush, having a base body with a head part with a front and a rear side, which includes a bristle carrier with a longitudinal axis and a transverse axis and a bristle field protruding therefrom, wherein the bristle field is formed by at least one group of cleaning elements; a handle part; and a neck part connecting the head part and the handle part; wherein the bristle carrier is provided with bristles which are mounted without being anchored and wherein the bristle carrier includes substantially a central support area, an upper support area, a lower support area, a right support area and a left support area, in which the groups of cleaning elements are arranged. Also, a corresponding method and tool.

A thermoplastic plastic nut includes a nut main section having a second thread to screw a first thread of a bolt; and a thin wall section weldable to the first thread and disposed to protrude upwardly from the nut main section. A material of the nut main section contains a thermoplastic resin and a material of the thin wall section contains the thermoplastic resin. Thus, a thermoplastic plastic nut, a nut welding device and a nut welding method are provided to make it possible to easily prevent the loosening of the nut.

Connections of sub-elements formed at least partly from fiber composite materials of a component for an aircraft with relatively low manufacturing complexity and the same or improved reliability and improved sealing, by providing different seam connections between the sub-elements. For this purpose, at least an edge region, formed from fiber composite material, of the first sub-element is formed to give a foldover that engages with an edge region of the other sub-element. Preferably, the forming is effected especially with use of thermoplastic materials while heating preferably the entire edge region.

A method for joining composite rods with tubular shape without expensive, machined connectors and without compromising the structural integrity of the composite rod includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads. The deformed metal collars are easily joinable to other components via off-the-shelf hardware.