Hollow profile member such as a tube made of thermosetting composite materials and corresponding method
AssigneesEpsilon Composite, Somocap
InventorsStéphane Lull, Ambroise Latron, Fabrice Sorhouet, Jérôme Nadeau, Thomas Clerc
Life of this patent
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Abstract
A method for overmolding a thermoplastic tip onto a hollow profile member made of thermosetting composite and to an assembly including a thermosetting profile member and a thermoplastic tip, wherein it includes machining the shape of the profile member made of thermosetting composite on the injection region; positioning a cap in the profile member; thermally conditioning the profile assembly and the cap; and injecting the tip with thermoplastic composite in order to create the junction of the profile member, the cap and the tip.
Claims20
A method for overmolding a thermoplastic end-fitting on a hollow profile member made of thermosetting composite to produce a connecting rod, the method including:
- machining a shape of the profile member made of thermosetting composite on an injection zone, and the profile member having an internal profile;
- positioning a plug in the profile member at an end, of the profile member, in order to prevent the profile member from being filled with the thermoplastic, the end of the profile member constituting an overmolded end,
- the plug including an external profile, and at least a part of the external profile complementing the internal profile of the profile member and of substantially identical size to the internal profile of the profile member, so as to plug the profile member,
- the profile member and the plug constituting an assembly;
- thermally conditioning the assembly;
- and
- injecting thermoplastic composite so as to form the end-fitting, and to create a junction of the profile member, the plug, and the end-fitting, to produce the connecting rod.
A connecting rod comprising:
- a hollow profile member made of thermosetting composite of internal diameter D1 and of external diameter D2, and the profile member including an internal profile that includes the internal diameter D1, and
- the profile member includes a machined part at an end of the profile member;
- a thermoplastic end-fitting;
- and
- a plug arranged inside the profile member, the plug including an external profile, and
- wherein the plug is arranged on the end of the profile member in order to prevent the profile member from being filled with the thermoplastic, and the end of the profile member constituting an overmolded end,
- the plug having at least a part of the external profile, of the plug, (a) complementing the internal profile, of the profile member, and (b) of substantially identical size as the internal profile, of the profile member, so that the plug plugs the profile member,
- the machined part including machined shapes, and
- wherein the machined part provides mechanical linking of the profile member to the end-fitting, with the machined shapes on the profile member provided to hold the end-fitting on the profile member by the mechanical linking.
Dependencies are inferred from the claim text.