摘要:
This invention concerns a method and apparatus for manufacturing or repairing a part. The method comprises building a fixture (200) for retaining the part (300) using an additive manufacturing apparatus, wherein material is consolidated using an energy beam, the fixture built on a build plate (108) retained in a set position within the additive manufacturing apparatus, mounting the part (300) to the fixture (200) and causing the additive manufacturing apparatus to consolidate material onto the part (300) when the build plate (108), with the fixture (200) and part (300) attached thereto, is retained substantially in the set position.
摘要:
To treat FRP moulded products, such as boat hulls (10), where the structure of the FRP laminate has been damaged, e.g. by water penetration, a layer of impermeable sheet material (18) is first secured to a surface of the product to be treated to enclose a space between the surface and the layer. The contents of the space are continuously evacuated, for example by a vacuum pump (38), and then heating is applied within the space. A spacer (30) is provided within the space to hold the sheet material away from the surface when vacuum is applied.
摘要:
A repair solution for a wind turbine blade is described. The repair solution includes the application of a layer of viscous coating material to the section of the blade to be repaired, which is cured to form a repaired surface. The layer of viscous coating material may be temporarily covered during the curing process using a film of Low Surface Energy material, to prevent defects in the repaired surface from dust, insects, etc. Additionally or alternatively, a temporary shield may be erected adjacent the curing layer of coating material, to allow for the control of the temperature and/or humidity levels of the region adjacent the curing material, to provide for more effective control of the curing process and to allow for repairs to be carried out for a wider process window.
摘要:
Das hier vorgestellte System (0) zur Herstellung und Reparatur von Kunststoff-Composite-Bauteilen mit Laminatstruktur, umfasst einen vorkonfektionierten Fasergewebezuschnitt (3), welcher in einer Sicherheitshülle (2) eingeschlossen ist, wobei die Sicherheitshülle (2) wiederum vollständig von einer Verarbeitungshülle (1) umschlossen ist. Nach Entnahme der Sicherheitshülle (2) aus der Verarbeitungshülle (1), dem Anzeichnen einer gewünschten Zuschnittkontur auf der Verarbeitungshülle (1) kann der Fasergewebezuschnitt (3) zurück in die Verarbeitungshülle (1) gebracht und dort mit Klebstoff imprägniert werden. Der Vorteil dieses Systems (0) ist die Vorkonfektionierung des Fasergewebezuschnittes (3) und die nahezu berührungsfreie Verarbeitung des Fasergewebezuschnittes (3).
摘要:
A method of cleaning a contaminated composite part, so as to provide a surface suitable for adhesive bonding. The method includes applying a wicking medium adjacent to a surface of the contaminated composite material. Then applying a solvent medium soaked in a cleaning solution adjacent to the wicking medium. Then vapor barrier is applied adjacent to the solvent medium. Next a breather material is applied adjacent to the vapor barrier. Then a vacuum bagging film with a vacuum port is applied and sealed against the composite part. The composite part is then heated and vented to remove contaminates from the composite material.
摘要:
Die Erfindung betrifft ein Verfahren zur Montage oder Reparatur von Bauteilen (10, 11), vorzugsweise für Kraftfahrzeuge, wobei ein erstes Bauteil (10) und ein zweites Bauteil (11) mittels zumindest einer Fügekomponente (12) verbunden werden und die Fügekomponente (12) zwischen einem Oberflächenbereich (13) des ersten Bauteils (10) und einem Oberflächenbereich (14) des zweiten Bauteils (11) angeordnet wird. Es wird vorgeschlagen, dass der Oberflächenbereich (13) des ersten Bauteils (10) mit einer Haftgrundkomponente (15) verbunden wird, die auf der dem besagten Oberflächenbereich (13) des ersten Bauteils (10) abgewandten Seite (16) eine der Fügekomponente (12) zugeordnete Haftoberfläche (17) aus einem Trägermaterial (18) aufweist. Die Erfindung betrifft ferner ein Verfahren zur Vorbehandlung für eine Montage oder Reparatur, ein Kraftfahrzeug mit zumindest einem ersten und einem zweiten Bauteil (11, 12) sowie ein vorbehandeltes Bauteil (10).
摘要:
A flexible plastics-based laminated sheet material of the kind including layers of reinforced UV curable resins (3, 5) in which a barrier material (1) of UV transparent material, for example polyethylene, is sandwiched between the resin layers, and in which the barrier material has a corona treatment to reduce the possibility and effect of entrapped air.
摘要:
A method of forming a build in a powder bed includes emitting a plurality of laser beams from selected fibers of a diode laser fiber array onto the powder bed, the selected fibers of the array corresponding to a pattern of a layer of the build; and simultaneously melting powder in the powder bed corresponding to the pattern of the layer of the build. An apparatus for forming a build in a powder bed includes a diode laser fiber array including a plurality of diode lasers and a plurality of optical fibers corresponding to the plurality of diode lasers, each optical fiber configured to receive a laser beam from a respective diode laser and configured to emitting the laser beam; a support configured to support a powder bed or a component configured to support the powder bed at a distance from ends of the optical fibers; and a controller configured to control the diode laser fiber array to emit a plurality of laser beams from selected fibers of the diode laser fiber array onto the powder bed, the selected fibers of the array corresponding to a pattern of a layer of the build and simultaneously melt the powder in the powder bed corresponding to the pattern of the layer of the build.
摘要:
Polymer network composition comprising a semi-crystalline covalently crosslinked polymer network including exchangeable covalent bonds and crosslinking bonds and at least an exchange reaction catalyst, wherein the number of crosslinking bonds is sufficient for the polymer network to be beyond the gel point and the number of exchangeable bonds is sufficient for the network to relax stresses and/or flow when conditioned at an appropriate temperature. Such compositions are characterized by the fact that the network is able to reorganize by exchange reactions that allow it to relax stresses and/or flow while maintaining network connectivity.