A process for producing a polymeric stiffened sheet-like component, for example a panel, for aircraft construction. Production includes integration of hollow stiffening profiles, for example closed omega stringers, onto a sheet-like component, for example an external skin, where the stringers and external skin are produced from thermoplastic composite material. The stringers are integrated onto the external skin by establishing contact between the stringers and the external skin and melting thermoplastic composite material with exposure to heat and pressure at the areas of contact between external skin and stringers. Melting of the other sections of the stringers is avoided with a pressurized cooling fluid with a temperature significantly below the melting point of thermoplastic composite material, the fluid flowing through the airtight enclosed space in the stringers. Use of closed airtight thermoplastic omega stringers allows integration of the stringers onto the external skin in absence of any flexible tube within the stringers.

Disclosed is a method of resistance welding between composite articles. A conductive element is provided between faying surfaces, having a plurality of lower resistivity electrode portions spaced apart along the length of the contact area between the composite articles. The electrode portions can be used to spot weld across the electrode portions, and along a longitudinal portion of the conductive element between the electrode portions by application of an electrical current. Also disclosed are apparatus for use in the resistance welding methods and composite articles and structures and elements incorporating the conductive element.

A blister pack includes a housing having a plurality of cavities and a cover sealed to the housing and enclosing the cavities. The cover includes a base layer, at least one security element, and a heat protection layer. The heat protection layer includes one of an amorphous polymer and a semi-crystalline polymer.

The invention relates to a method for checking, prior to welding, two components made of polymer material, the method comprising a step of determining respective values relating to the roughness of the components, a step of determining respective values relating to the cleanliness of the components, a step of determining respective values relating to the temperature of the components and automated means for halting progression to a subsequent method step should the predetermined conditions not be met.

The invention relates to a device (1) for measuring the surface condition of a component (4, 5, 6). Said device (1) comprises a measurement member (2) comprising at least one sensor (21, 22, 23) capable of measuring at least one datum relating to the surface condition of the component (4, 5, 6) and at least one transmitter (24) capable of transmitting the datum from the sensor (21, 22, 23). The measurement device (1) also comprises a support (3) for the measurement member (2), the support comprising means for connecting same to the component (4, 5, 6).

A device for manufacturing a battery cell according to one embodiment of the present disclosure includes a sealing tool that forms a sealing part on the outer peripheral surface of a battery case to which an electrode assembly is mounted, wherein the sealing tool comprises a sealing surface that is brought into contact with the outer peripheral surface of the battery case, and wherein the sealing surface comprises a central surface and an inclined surface formed on at least one side of the central surface.

A method of anchoring a connector in a first object, wherein the first object is a lightweight building element having a first outer building layer and an interlining layer, and wherein the connector includes thermoplastic material in a solid state. The method includes: bringing a coupling surface portion of the connector into contact with an attachment location of the first outer building layer; displacing a portion of the first outer building layer at the attachment location with respect to the interlining layer by applying a first pressing force to the first outer building layer and thereby piercing the first outer building layer; applying a second pressing force to the connector and transferring energy to the connector until a flow portion of the thermoplastic material has liquefied and flown to interpenetrate structures of the interlining layer; and stopping the energy transfer and allowing the flow portion to re-solidify.

An attachment part for connecting to a structural part. The attachment part has an attachment part longitudinal axis, and a weld portion to be welded to the structural part by torsional ultrasonic welding. The weld portion has a contact surface for contact with a torsion sonotrode, and a weld surface for connecting to the structural part. The weld portion is delimited, at least portionally, by an inner vibration decoupling zone. The inner vibration decoupling zone, at least portionally, surrounds an inner portion of the attachment part.

An integrated testing device and fluid module are disclosed, as well as a method of manufacture. Fluid module contains a reservoir containing a test fluid, and a control vessel. The reservoir discharges test fluid into the control vessel, which discharges the test fluid in a controlled way to a test component.

A tooling for use in a method for electromagnetic welding of two contacted surfaces of molded parts. The tooling includes a rubber body and pressurizing means for pressurizing the rubber body and applying pressure to the contacted surfaces. The rubber body includes an embedded stiff body shaped such as to define different rubber body thicknesses in different directions, which causes a different pressure build-up in the different directions. A method for manufacturing the tooling. The tooling may be used in electromagnetic welding of two contacted surfaces of molded parts by moving a joining inductor along the contacted surfaces, generating an electromagnetic field in an induction-sensitive component of the molded parts to heat a thermally activated coupling means of the molded parts to above a melting temperature of the coupling means.