A device and method for the fluid-tight sealing of two partially overlapping packaging components, one being a tubular base member formed from a blank of composite cardboard/plastics material, and an additional packaging component forming the upper packaging portion or packaging base, having at least one mandrel and one die, the mandrel having at least two expansion elements which are moved from the operating position thereof towards each other into a rest position, the expansion elements having sealing jaws which, in the operating position thereof, form a closed circumferential outer contour, which corresponds to an inner contour formed by an opening in the die, there remaining between the inner contour and outer contour a narrow annular gap in order to apply a pressing force from the inner side to the overlap region of the packaging components.

A method and apparatus for applying a force to an assembly comprising a layup mandrel and a composite part. The apparatus comprises a first gripper and a second gripper. The second gripper is spaced apart from the first gripper so as to define a space between the first and second grippers, the space configured to receive the assembly. An actuation system is positioned between the first and second grippers adjacent the space, the actuation system configured to separate the layup mandrel from the composite part by applying force.

There is provided a method for non-penetration joining of members. The method includes: keeping a joining member having a protruding part by a receiving mold so that the protruding part is exposed; placing a joined member over the joining member so that the protruding part of the joining member is positioned in a blind hole of the joined member, and compressing the joined member against the receiving mold to plastically deform the joined member and the joining member at the same time and to wrap excess thickness of the joined member around an undercut part while forming the undercut part on the joining member, thereby non-detachably joining both the members.

Described are a mold and molding process for manufacturing devices and containers that are scalable, modular, and lockable laterally and vertically with other like devices or containers. The mold is formed with a cup mold and top end mold sections specially designed to allow for molding and demolding a container with an undercut. The cup mold includes, on a vertical wall, one or more undercuts. Multiple undercuts may further form tongues with undercuts each of which forms a groove with undercuts on the molded article, and/or one or more grooves with undercuts each of which form a tongue with undercuts in the molded article. Molding and Demolding of the article with undercuts is further enabled by utilizing an improved method of molding said article with an undercut, and demolding said article from the mold once it is molded, by improvements to each stage of the molding process, including the preform stage, the conditioning station stage, the blow stage and the release stage.

An injection mold for the manufacture of an axisymmetric part of composite material including a mandrel supporting a fibrous preform and including an annular wall, and a plurality of counter-mold angular sectors assembled on the mandrel and intended to close the mold and to compact the fibrous preform wound on the mandrel. Each angular sector includes an annular base intended to come into contact with the fibrous preform. The annular base extends between the first and second lateral edges in a circumferential direction, the first lateral edge of the annular base of an angular sector being in contact with a second lateral edge of the annular base of an adjacent angular sector.

Disclosed is an adjustable internal support restraint device for roundness control of a cabin component. The present disclosure solves the problem that the existing cabin components are prone to roundness distortion in a heat treatment process. The adjustable internal support restraint device includes a central limiting column and at least two circumferential ejecting correcting assemblies that are coaxially mounted on the central limiting column in a sleeving manner. Each circumferential ejecting correcting assembly includes a mounting piece and a plurality of ejector blocks. The mounting piece is mounted on the central limiting column in a sleeving manner. The plurality of the ejector blocks are annularly arranged outside the mounting piece and are in threaded connection with the mounting piece. One side surface, close to the inner cavity profile of a cabin, of each ejector block and the inner cavity profile of the cabin are arranged according to the shapes.

A system includes a mandrel contoured to define a tapering tubular shape of a workpiece cured on the mandrel and a demolding tool. The demolding tool is configured to remove the workpiece from the mandrel after the workpiece is cured on the mandrel and cut longitudinally. The demolding tool is configured to remove the workpiece from the mandrel by deforming a first end of the workpiece to at least partially disengage the first end of the workpiece from a first end of the mandrel, and subsequently, deforming a second end of the workpiece to at least partially disengage the second end of the workpiece from a second end of the mandrel. The first end of the workpiece may have a first cross-sectional area that is smaller than a second cross-sectional area of the second end of the workpiece.

A method for removing a hollow support element (17) from within a moulded part (15) to form a cavity (25) within the moulded part, the hollow support element being disposed within the moulded part and composed of material having a softening temperature, the method comprising: heating a liquid (20) to a temperature at least equal to the softening temperature of the material; injecting the heated liquid into an opening (24) in the moulded part to deform the material; and removing deformed material and liquid from the cavity.

A stiffened part formed from at least two members of thermoset composite material including at least one body of a first structure and optionally a second structure. A manufacturing method includes: forming a fibre preform and impregnating each body of the first structure with thermosetting resin or forming a pre-impregnated fibre preform to obtain a body formed from uncured thermosetting composite material supported by a mandrel; optionally partially or fully polymerising at least one body supported by a mandrel; optionally, providing the second structure formed from uncured, partially uncured or fully uncured thermosetting composite material; optionally, depositing a layer of uncured thermosetting adhesive on an area where a fully cured member makes contact with another member of the part; joining the members, each member being juxtaposed with; or stacked upon, at least one other member; fully curing the assembly by heat treatment; removing the mandrel from each fully cured body.

A reusable countertop mold in accordance with the present invention includes a bracket member detachably secured to a rail portion of a cabinet member for a substantially horizontal substrate that receives deformable material upon a surface of the substrate. The bracket member includes vertical, horizontal and channel members integrally joined together for enabling a channel member to removably receive the rail member. The mold further includes a locking bolt for detachably securing the bracket member to the rail portion of the support member. A form member is detachably secured to the bracket member, the form member continuously extending outside the perimeter of the substrate and receives deformable material that ultimately solidifies; whereby, the substrate surface and the form member cooperate to configure a countertop that continuously extends upon and outside the perimeter of the substrate, thereby forming a countertop having an integrally joined overhang portion; whereupon, the reusable countertop mold is removed from the solidified countertop overhang portion and the rail portion.