ITHEC 2012 Manuscript C6

Author: Hubert Borgmann
Pages: 6
Language: English
Publication date: 02/04/2015
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Manuscript C6 published in Conference Proceedings ITHEC 2012
Tempered Spring-in Compensation for Small Carbon Fibre Reinforced Thermoplastic Composites

C. Peters, C. Brauner, M. Schulz, and A. S. Herrmann
Faserinstitut Bremen e.V. (FIBRE), Germany

During the thermoforming process, the differing thermal expansion coefficients of matrix and reinforcing fibres provoke residual stresses and process induced deformations. This so-called “spring-in” or “spring-back” effect for clip angle parts is caused by anisotropic material behaviour, component geometry, material thickness, matrix system and process conditions. This paper considers, inter alia, the thermal spring-in, spring-back compensation and the development of a readjust angle process using a tempered thermoforming tooling for composites with high performance polymers. One focus is on the observation of thermally controlled effects and their influence on material properties of the carbon parts. The interpretation of the temperature process influence, combined with the tempered tooling design, will help to understand the interrelations of material and process parameters to be able to fulfil the high quality demands for high performance applications. This aspect is one important issue in the German Aeronautic Research Project “AUTOMATH” – AUTOmated MAss production of fibre reinforced THermoplastic Composites” accompanied by industrial partners.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (

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