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Device and method for forming a composite panel from a thermoplastic matrix

  • US 10,639,840 B2
  • Filed: 11/04/2014
  • Issued: 05/05/2020
  • Est. Priority Date: 11/09/2013
  • Status: Active Grant
First Claim
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1. A system to stamp a thermoplastic matrix composite blank, the thermoplastic composite blank comprising a fibrous reinforcement in the form of continuous fibers that cannot be deformed physically, the system comprises:

  • a frame;

    a stamping die;

    a machined blank, made of a thermoplastic composite comprising non-deformable continuous fibers, routed according to a contour comprising cut out of holes configured to receive positioning elements of the frame;

    a plurality of cleats fixed on the frame at adjustable positions and extending towards an interior of the frame and delimiting a surface of an internal opening of the frame, free from any obstacle;

    a locator linked to a cleat and configured to cooperate with a guiding hole machined in the machined blank;

    radiant panels to heat the machined blank while the machine blank is on the frame; and

    wherein said cleat linked to the locator is made of a material having a thermal diffusivity at least 10 times higher than a thermal diffusivity of a polymer forming the thermoplastic matrix composite blank, such that the cleat linked to the locator forms a heat sink; and

    wherein an outside perimeter of the stamping die is inscribed in the internal opening of the frame.

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