The Boeing Company

Alliedsignal Inc.

Convergent Manufacturing

Convergent Manufacturing Technologies Inc.

Anoshiravan Poursartip

Karl Marius Nelson

Malcolm David Lane

Kurtis Shuldberg Willden

Goran Fernlund

Anthony Michael Floyd

David Andrew Van Ee

Morgan Edwin John Hibbert

Huy Xuan Nguyen

Malcolm Lane

Roger C Bennett

Golnar Riahi

Geoffrey M Wood

Porosity causing gas-based defects are detected, located, identified, and/or characterized by the use of defect information generated from gas flow data corresponding to gas flow characteristics measured by one or more sensors on a composite part processing piece such as a mould or membrane used during a composite manufacturing process. The defect information is generated using techniques including one or more of profiling the gas flow data, fingerprinting, line leak detection, analytical triangulation.

Detection, monitoring, and management of gas presence, gas flow and gas leaks in composites manufacturing

A system is provided for collecting data during vacuum molding of a composite part using a mold including an air tight, flexible membrane sealed to a tool. The system comprises a plurality of MEMS sensors coupled with the interior of the mold at different locations over the part. Each of the sensors produces signals related to a process parameter, such as pressure within the bag, that is sensed at the location of the sensor.

Collection of process data using in-situ sensors

Porosity causing gas-based defects are detected, located, identified, and/or characterized by the use of defect information generated from gas flow data corresponding to gas flow characteristics measured by one or more sensors on a composite part processing piece such as a mold or membrane used during a composite manufacturing process. The defect information is generated using techniques including one or more of profiling the gas flow data, fingerprinting, line leak detection, analytical triangulation.

A system collects data relating to a process performed within an autoclave, and wirelessly transmits the data to a receiver located outside the autoclave for processing. One or more sensors inside the autoclave sense process parameters such as temperature or pressure. The transmitter is housed in a protective container that protects the transmitter against the effects of autoclave heat and pressure.

Wireless transmission of process data from within pressure vessels

Method and apparatus for treating ultrahigh molecular weight, high strength polyolefin to improve its adhesive bonding to a resin such as epoxy, vinyl ester, polyester, polyurethane, polyolefin or thermoplastic rubber are provided. The method includes the steps of soaking the polyolefin in a first solution comprising (i) an aromatic ketone photosensitizer, and (ii) a first solvent selected from the group consisting of a benzene derivative, an alkyl halide, and a cyclic alkane; removing any excess first solvent; coating the surface of the polyolefin with a second solution comprising (i) about 15 to 70 weight percent of a monomer independently selected from the aforementioned group, (ii) about 0.25 to 5 weight percent of an aromatic ketone photosensitizer, and (iii) about 25 to 84.75 weight percent of a solvent selected from the group consisting of a low boiling point alcohol and a low boiling point ketone; exposing the coated polyolefin to a sufficient amount of irradiation to surface graft the monomer of the second solution to the polyolefin; washing the treated polyolefin; and drying for suitable packaging. The apparatus features an irradiation treatment chamber through which the polyolefin is passed in a cooled tube for treatment.

Treatment of ultrahigh molecular weight polyolefin to improve adhesion

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Vancouver, Canada

Anoshiravan Poursartip