15 April 2020
For the draping operation of semi-finished fiber materials for component manufacturing and repair, information on the position and orientation of the fiber layers has so far been provided in the form of plybooks: Small and medium-sized companies frequently work with printed paper instructions and are highly dependent on the experience of the person performing the work. Larger companies, for example in the aerospace industry, have already turned to laser projection systems which project the position of the semi-finished product onto the mold. These assist the staff to position the semi-finished materials appropriately. However, such laser-based support systems are comparatively expensive and inflexible in their application.
The Fraunhofer IPT has developed an alternative to these two working aids as part of the Fraunhofer "Smart-Lay-Up!" project: Augmented reality software that uses commercially available smart glasses to make the exact alignment and positioning of the semi-finished materials directly visible on the component. The cutting of the semi-finished materials is also supported by projection of target contours. This cost-effective system is much more flexible in terms of handling than conventional procedures using paper or laser-based projection systems and is also fully scalable in the production environment, making it suitable for the serial production of FRP products.
The application developed by the Fraunhofer IPT provides the worker wearing the smart glasses with much more than just a digital version of the plybook: it also offers an augmented reality environment in which the information for aligning the fiber layers or pre-impregnated fiber prepregs is placed directly above the component in front of them. Step-by-step instructions guide the worker through the preforming process and, if required, document the work for quality assurance purposes.
The software can be easily installed as an app on data glasses with an Android operating system and can be adapted for the lay-up task in hand. Companies wishing to try out and use the technology can now test the app in a feasibility study with their own production staff and identify individual requirements in collaboration with Fraunhofer IPT employees.
The Aachen researchers predict that the new technology will improve the accuracy and traceability of the processing of components made of fiber-reinforced high-performance materials, reduce the error rate and significantly shorten process times. The acquisition of the smart glasses-based system, which costs less than a tenth of the costly laser projection systems, will thus also become affordable for small and medium-sized companies and can lead to noticeable productivity improvements in markets such as medical technology, boat building, mechanical engineering, but also in the manufacture of upmarket consumer products made of fiber-reinforced lightweight materials.
Further information: https://www.ipt.fraunhofer.de/en.html
Augmented reality system facilitates manual manufacturing of products made of fiber-reinforced composite materials
The manufacturing of products made of fiber-reinforced plastics (FRP) often still involves a number of manual work steps: the position and orientation of the semi-finished fiber-reinforced materials must be aligned precisely by hand to ensure that the product has the required levels of stability and flexibility after lamination and curing. Ultimately, this is the only way of enabling the user to fully exploit the advantages of the FRP material. To support the manual deposition process, known as preforming, the Fraunhofer Institute for Production Technology IPT in Aachen, Germany, has developed intuitive software for commercially available augmented reality glasses: The system specifies the correct deposition of the semi-finished materials as a virtual representation on the mold and can thus significantly improve the quality and performance of FRP production processes.
 Foto: Fraunhofer IPTThe Fraunhofer IPT has developed software for commercially available smart glasses that specifies the correct deposition of the semi-finished materials as a virtual representation on the mold. |
Digital instructions and documentation directly on the component
The Fraunhofer IPT has developed an alternative to these two working aids as part of the Fraunhofer "Smart-Lay-Up!" project: Augmented reality software that uses commercially available smart glasses to make the exact alignment and positioning of the semi-finished materials directly visible on the component. The cutting of the semi-finished materials is also supported by projection of target contours. This cost-effective system is much more flexible in terms of handling than conventional procedures using paper or laser-based projection systems and is also fully scalable in the production environment, making it suitable for the serial production of FRP products.
The application developed by the Fraunhofer IPT provides the worker wearing the smart glasses with much more than just a digital version of the plybook: it also offers an augmented reality environment in which the information for aligning the fiber layers or pre-impregnated fiber prepregs is placed directly above the component in front of them. Step-by-step instructions guide the worker through the preforming process and, if required, document the work for quality assurance purposes.
The software can be easily installed as an app on data glasses with an Android operating system and can be adapted for the lay-up task in hand. Companies wishing to try out and use the technology can now test the app in a feasibility study with their own production staff and identify individual requirements in collaboration with Fraunhofer IPT employees.
Cost-effective system for manufacturers of individual lightweight products
The Aachen researchers predict that the new technology will improve the accuracy and traceability of the processing of components made of fiber-reinforced high-performance materials, reduce the error rate and significantly shorten process times. The acquisition of the smart glasses-based system, which costs less than a tenth of the costly laser projection systems, will thus also become affordable for small and medium-sized companies and can lead to noticeable productivity improvements in markets such as medical technology, boat building, mechanical engineering, but also in the manufacture of upmarket consumer products made of fiber-reinforced lightweight materials.
Further information: https://www.ipt.fraunhofer.de/en.html
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