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Method for winding continuous fibre rovings for the manufacture of complex fibre-reinforced plastic components

Summary

Profile Type
Technology offer
POD Reference
TODE20240304011
Term of Validity
4 March 2024 - 4 March 2025
Company's Country
Germany
Type of partnership
Research and development cooperation agreementInvestment agreementCommercial agreement with technical assistance
Targeted Countries
All countries
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General information

Short Summary
A German university has developed a process to produce coreless wound complex structural components with adjustable cross-sections. Using glass fibre rovings, the process according to the invention combines the great design freedom of the winding process with the high dimensional accuracy of pultrusion profiles. The University is looking for cooperation partners, licensee and/or investors to further develop the new technology to series maturity.
Full Description
Coreless filament winding is a continuous process to produce continuous fibre reinforced composite components. By using this method, corrosion-resistant structural components with high mass-specific mechanical characteristic values and a high degree of geometric design freedom can be produced cost-effectively.
While complex three-dimensional load-bearing structures can be created quite easily in coreless winding, the individual elements have high deviations in their cross-sectional shape. This complicates the calculability of the structures and causes relatively large safety factors.
Scientists at a German University have developed a process to produce coreless wound complex structural components with adjustable cross-sections. Using glass fibre rovings, the process according to the invention combines the great design freedom of the winding process with the high dimensional accuracy of pultrusion profiles. To produce the component, the fibre strand is continuously wound along spatially arranged deflection points (sleeves, pins, ...) freely in space. During the winding process, the fibre strand is only cured between the deflection points; the fibre strand remains flexible at the deflection points. This immediate curing by using UV radiation ensures the shaping of the fibre strand, which thus does not have to be cut to length and allows an integral construction. The process enables the production of resilient components with complex component geometries with adjustable and constant fibre strand cross-sections and fibre volume contents.

Possible applications of the new technology are structural components which currently consist of two or more parts (bolted or welded) and which can be manufactured in one piece using the process according to the invention. Possible applications are, for example, bicycle frames, brackets for exterior mirrors, satellite systems, rear spoilers or any kind of reinforcing struts.

In order to bring the technology to series maturity the University is looking for industrial partners interested in licensing or developing the technology further, as well as for investors.
Advantages and Innovations
Advantages of the innovation are:
• Great freedom in component design
• Constant fibre strand cross-section
• Adjustable cross-section shape
• Reduced safety factors
• Smooth component surface
• High automation capability
• Adjustable fibre volume content
• No dripping of resin during production
Stage of Development
Available for demonstration
Sustainable Development Goals
Goal 9: Industry, Innovation and InfrastructureGoal 17: Partnerships to achieve the Goal

Partner Sought

Expected Role of a Partner
The University is looking for cooperation partners, licensee and/or investors to further develop the new technology to series maturity.
Type and Size of Partner
SME 11-49Big companySME 50 - 249SME <=10
Type of partnership
Research and development cooperation agreementInvestment agreementCommercial agreement with technical assistance

Dissemination

Technology keywords
02006001 - Materials, components and systems for construction02007005 - Composite materials02007014 - Plastics, Polymers02002010 - Machining (turning, drilling, moulding, planing, cutting)02007002 - Building materials
Market keywords
08001004 - Fibre-reinforced (plastic) composites08001001 - Plastic fabricators08001006 - Processes for working with plastics
Targeted countries
All countries

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Bionic_pavilions.pdf
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