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Publisher DOI: 10.3390/machines11030365
Title: Processing strategies for dieless forming of fiber-reinforced plastic composites
Language: English
Authors: Rath, Jan-Erik  
Graupner, Robert 
Schüppstuhl, Thorsten  
Keywords: Fiber-reinforced plastic; Composite; Dieless forming; Incremental forming; Robotics; Automation
Issue Date: 8-Mar-2023
Publisher: MDPI
Source: Machines 11 (3): 365 (2023)
Abstract (english): 
The demand for lightweight materials, such as fiber-reinforced plastics (FRP), is constantly growing. However, current FRP production mostly relies on expensive molds representing the final part geometry, which is not economical for prototyping or highly individualized products, such as in the medical or sporting goods sector. Therefore, inspired by incremental sheet metal forming, we conduct a systematic functional analysis on new processing methods for shaping woven FRP without the use of molds. Considering different material combinations, such as dry fabric with thermoset resin, thermoset prepreg, thermoplastic commingled yarn weave and organo sheets, we propose potential technical implementations of novel dieless forming techniques, making use of simple robot-guided standard tools, such as hemispherical tool tips or rollers. Feasibility of selected approaches is investigated in basic practical experiments with handheld tools. Results show that the main challenge of dieless local forming, the conservation of already formed shapes while allowing drapability of remaining areas, is best fulfilled by local impregnation, consolidation and solidification of commingled yarn fabric, as well as concurrent forming of prepreg and metal wire mesh support material. Further research is proposed to improve part quality.
Conference: 31st International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2022 
DOI: 10.15480/882.4978
ISSN: 2075-1702
Journal: Machines 
Institute: Flugzeug-Produktionstechnik M-23 
Document Type: Article
Project: Entwicklung eines Prozesses zur inkrementellen, formwerkzeuglosen Umformung faserverstärkter Halbzeuge, sowie Umsetzung einer digitalen Prozesskette zur Planung- und Steuerung 
Funded by: Bundesministerium für Wirtschaft und Klimaschutz (BMWK) 
Peer Reviewed: Yes
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
Is new version of: 10.1007/978-3-031-18326-3_1
Appears in Collections:Publications with fulltext

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