Abstract:
A method for consolidating a preform made of composite material. The preform and a compliant metal alloy sheet are placed between less compliant matched confronting forming/molding surfaces with the preform being sandwiched between the metal alloy sheet and a matched confronting surface. The matched confronting surfaces and compliant metal alloy sheet are heated until the preform reaches at least its consolidation temperature. During heating, force is applied so that the matched confronting surfaces exert sufficient compressive force on the preform and metal alloy sheet to cause the composite material to consolidate at the consolidation temperature. The metal alloy sheet has a tensile yield point in a range of 25-300 psi at the consolidation temperature at a strain rate of about 1% to 10% strain per minute.
Abstract:
A system for inductively heating a workpiece may include an induction coil, at least one susceptor face sheet, and a current controller coupled. The induction coil may be configured to conduct an alternating current and generate a magnetic field in response to the alternating current. The susceptor face sheet may be configured to have a workpiece positioned therewith. The susceptor face sheet may be formed of a ferromagnetic alloy having a Curie temperature and being inductively heatable to an equilibrium temperature approaching the Curie temperature in response to the magnetic field. The current controller may be coupled to the induction coil and may be configured to adjust the alternating current in a manner causing a change in at least one heating parameter of the susceptor face sheet.
Abstract:
An apparatus may comprise a first tool die and a second tool die, each having a tool base. Each tool base may have a laminated structure that has a plurality of spaced metallic laminations. The laminated structure may have a truncated portion forming a cavity configured to receive a tool insert, and at least one opening for receiving an induction coil. The first tool die and the second tool die may also have a tool insert configured to be received in the cavity of the tool base. The tool insert may have a die susceptor capable of being heated by the induction coil. The apparatus may also have an actuator for moving the first tool die and the second tool die toward one another for forming a component between the die susceptor of the tool insert of the first tool die and the die susceptor of the tool insert of the second tool die.
Abstract:
A heating blanket may include a conductor for receiving electrical current and generating a magnetic field in response to the electrical current. A plurality of sleeve segments may be mounted on the conductor in end-to-end relation to one another. Each one of the sleeve segments may be formed of magnetic material having a Curie temperature. The sleeve segments may be inductively heated in response to the magnetic field.
Abstract:
Systems and methods for configuration management in an article of manufacture disclosed. In one embodiment, a system for documenting a configuration of an article of manufacture includes an identifier positioned on the article of manufacture. A local positioning system is used to determine a positional location of the identifier on the article of manufacture. A multifunction apparatus configured to interactively communicate with the identifier and the local positioning system is present that is operable to communicate configuration information to the identifier.
Abstract:
A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a thermal control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided on the first tooling die and a second die susceptor provided on the second tooling die and connected to the induction coils; and a cooling system disposed in thermal contact with the first tooling die and the second tooling die. A composite fabrication method is also disclosed.
Abstract:
A structural assembly and an associated system and method for manufacture are provided. The structural assembly includes an elongate member and a first connector member that is connected to an end of the elongate member by a braze joint. A second connector member can be connected to an end of the elongate member opposite the first connector by another braze joint. The elongate member is formed of a metal matrix composite material that includes a plurality of fibers of a reinforcement material disposed in a metal matrix. Each connector member is formed of a material that is dissimilar to the material of the elongate member. The braze joints can be formed by selectively heating the braze material, e.g., with an inductive coil that extends circumferentially around only a portion of the structural assembly.
Abstract:
A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a temperature control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided on the first tooling die and a second die susceptor provided on the second tooling die and connected to the induction coils; and a cooling system disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed.
Abstract:
A method of forming an elongated metal blank into a structural component having a predetermined outer configuration. The method includes providing a shape imparting cavity or shell section formed from a rigid material which includes an inner surface defining the predetermined shape, placing the metal blank into the cavity or shell section, and forming the metal blank into the component by heating axial portions of the metal blank and forcing a fluid at a high pressure into the metal blank until the metal blank at least partially conforms to at least a portion of the inner surface of the cavity or shell section to form the structural component.
Abstract:
A single or multilayer smart susceptor for temperature control of part fabrication in an induction processing system generally consists of single layer or laminated layers of ferromagnetic material susceptible to heating by induction. The use of the susceptors in fabrication at elevated temperatures causes oxidation damage to the surface. The susceptor may be coated with a nickel aluminide surface coating to minimize oxidation of the susceptor outer surface.