摘要:
Various embodiments relate to plastic-metal junctions and methods of making the same via laser-assisted joining. The present invention provides a method of forming a junction between a metal form and a solid plastic. The method can include laser treating a surface of a metal form to generate a feature (e.g., a plurality of at least one of pores and grooves) in the surface of the metal, wherein the laser has an angle of incidence with the surface of the metal of other than 0 degrees. The method can include contacting the metal surface including the feature with a flowable resin composition. The method can include curing the flowable resin composition to form the solid plastic, to provide the junction between the metal form and the solid plastic.
摘要:
A venting apparatus (100) is disclosed herein. The venting apparatus comprises a substrate (102), such as a metal substrate or a specialty plastic substrate, having an opening (104) therein and a fluoropolymer membrane (106), such as ePTFE, disposed over said opening and thermally bonded using a thermoplastic material (110) to said substrate. This allows the fluoropolymer membrane to be directly bonded to the said substrate without using an adhesive layer.
摘要:
The invention relaters to a connecting element for fastening an aircraft skin to an aircraft primary reinforcing element. The connecting element comprises a shear web and, integrally formed therewith, a frame stabilizing element. The connecting element comprises a fibre-reinforced composition of discontinuous fibres in a thermoplastic or thermoset matrix material, is configured to transfer primary loads between the aircraft skin and the primary aircraft frame, and is characterized in that at least part of the discontinuous fibres are intentionally and controllably oriented along paths of primary load transfer. An aircraft with a primary structure connecting element for fastening the aircraft skin to the primary structure of the aircraft is also specified. The primary structure connecting element is preferably produced from a fibre-reinforced composition by means of injection moulding. Used in particular for this are chopped graphite, carbon fibres and/or glass fibres embedded in a matrix material, for example in the form of pellets.
摘要:
Composite fasteners, associated blanks and also methods and apparatus for the installation of such fasteners are disclosed. An exemplary composite rivet (10) disclosed comprises an elongated body including braided reinforcement fibers (14) embedded inside the body and supported in a matrix material (16). Also disclosed are structural assemblies comprising composite fasteners and panels or other parts comprising composite and/or other materials.
摘要:
Method for forming a sealing element from extruded thermoplastic rods (1) comprises the steps of machining one or more extruded thermoplastic rods, each having a first and a second end (5,6), in a desired shape; bending the one or more machined thermoplastic rods into a circular structure at ambient temperature while keeping the stress in the one or more thermoplastic rods below the yield point; joining the first and second end faces (2,3) of the thermoplastic rods to form the sealing element. The invention also relates to a method for replacing and repairing a sealing element of a swivel.