Thermo Flow Forming (TFF) - Rochman, Arif
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High performance polymers generally exhibit very high melt viscosities as result of their high molecular weight. They are therefore very difficult to process and require heavy-duty processing equipment. In some cases they cannot be processed at all using conventional melt processing techniques. In spite of this processing restriction, there is high demand for microparts from high performance polymers due to their excellent properties. In this study, a novel processing method called Thermo Flow Forming (TFF) has been developed for manufacturing parts made from high performance polymers. The TFF…mehr

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Produktbeschreibung
High performance polymers generally exhibit very high melt viscosities as result of their high molecular weight. They are therefore very difficult to process and require heavy-duty processing equipment. In some cases they cannot be processed at all using conventional melt processing techniques. In spite of this processing restriction, there is high demand for microparts from high performance polymers due to their excellent properties. In this study, a novel processing method called Thermo Flow Forming (TFF) has been developed for manufacturing parts made from high performance polymers. The TFF process is based on the flow of polymer material in its thermoelastic state, between its glass transition and melting temperatures, by compressive flow thermoforming. The TFF process has been successfully tested using high performance polymers such as polyphenylene sulfide (PPS), polyetheretherketone (PEEK) and unmouldable polytetrafluorethylene (PTFE). Thus, the TFF is a realistic alternative technique to the existing micromoulding processes. It can replace the wasteful and inefficient conventional machining of microparts made from unmouldable high performance polymers such as PTFE.
Autorenporträt
Dr Arif Rochman obtained his undergraduate degree in Aircraft Engineering from Hochschule München, his MSc degree in Polymer Engineering from Aalen University in Germany and his PhD degree in Polymer Engineering from Queen's University Belfast in UK. He works now at Department of Industrial and Manufacturing Engineering at University of Malta.