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  2. Vacuum bag moulding - Wikipedia

    en.wikipedia.org/wiki/Vacuum_bag_moulding

    Then, a vacuum is drawn on the vacuum bag, and atmospheric pressure compresses the part during the cure. When a tube-shaped bag is used, the entire part can be enclosed within the bag. When utilizing sheet bagging materials, the edges of the vacuum bag are sealed against the edges of the mould surface to enclose the part against an air-tight mould.

  3. Fibre-reinforced plastic - Wikipedia

    en.wikipedia.org/wiki/Fibre-reinforced_plastic

    Individual sheets of prepreg material are laid-up and placed in an open mould. The material is covered with release film, bleeder/breather material and a vacuum bag. A vacuum is pulled on part and the entire mould is placed into an autoclave (heated pressure vessel). The part is cured with a continuous vacuum to extract entrapped gasses from ...

  4. Carbon-fiber reinforced polymer - Wikipedia

    en.wikipedia.org/wiki/Carbon-fiber_reinforced...

    For simple pieces of which relatively few copies are needed (one or two per day), a vacuum bag can be used. A fiberglass, carbon fiber, or aluminum mold is polished and waxed, and has a release agent applied before the fabric and resin are applied, and the vacuum is pulled and set aside to allow the piece to cure (harden). There are three ways ...

  5. Fiberglass - Wikipedia

    en.wikipedia.org/wiki/Fiberglass

    Fiberglass composite boats have been made since the early 1940s, [20] and many sailing vessels made after 1950 were built using the fiberglass lay-up process. As of 2022, boats continue to be made with fiberglass, though more advanced techniques such as vacuum bag moulding are used in the construction process.

  6. Vacuum bag - Wikipedia

    en.wikipedia.org/wiki/Vacuum_bag

    Vacuum bag may refer to: Vacuum packing of vacuum-sealed bags; Vacuum bag moulding; The dustbag of a Vacuum cleaner This page was last edited on 7 ...

  7. Transom (nautical) - Wikipedia

    en.wikipedia.org/wiki/Transom_(nautical)

    Vertical transom and stern of a modern cargo ship. In some boats and ships, a transom is the aft transverse surface of the hull that forms the stern of a vessel. Historically, they are a development from the canoe stern (or "double-ender") wherein which both bow and stern are pointed. Transoms add both strength and width to the stern.