Metal Processing
Headlines
Video – The QSP process gains further headway
The Quilted Stratum Process for thermoforming of thermoplastic composites is now ready for the manufacturing of a composite bumper beam and has gained new possibilities for direct intramould assembly of metallic inserts.
The Quilted Stratum Process (QSP) developed by Cetim has broadened its range of applications. In fact, the thermoforming pilot line created by Cetim and its partners Loiretech, P.E.I. and Compose, has been configured to manufacture a vehicle composite bumper beam, as an alternative to conventional solutions. This line includes the cutting of patches from thermoplastic composite plates or tapes, the assembly of “patched” preforms, rapid heating, and a thermoforming press used to obtain net shape parts. This application can be seen on video on our website and on the Cetim France YouTube channel.
Intramould inserts
The QSP process also has more added value on account of the developments performed between Cetim and the specialist of industrial fasteners Böllhoff Otalu. The partners have worked in two stages. Firstly they equipped the QSP intramould drilled holes Rivkle SFC inserts made by the German company. Then, they integrated and directly overmoulded an Imtec CF metal insert into the stamping mode. As an added benefit, they provide increased mechanical strength. “With respect to a conventional solution assembled with a composite drilled by machining, these solutions integrated to the QSP increase performance respectively by 30 to 75% with regard to tearing, 60 to 75% as regards tensile-shear strength, in addition to the energy absorption gain”, stated Emmanuelle Berlire, Innovation project manager at Böllhoff. This innovation received an “Innovation Award” at Experience Composites 2016. The next step will be to develop a specific product designed for applications of structural fasteners for composite parts.
Read the full “Böllhoff Otalu – New assemblies for composites” reference sheet on our website, in the “References” section.
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References
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Presentation
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