Details
| Original language | English |
|---|---|
| Title of host publication | High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XI |
| Publisher | SPIE |
| Publication status | Published - 4 Mar 2022 |
| Event | High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XI 2022 - Virtual, Online Duration: 20 Feb 2022 → 24 Feb 2022 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Publisher | SPIE |
| Volume | 11994 |
| ISSN (Print) | 0277-786X |
Abstract
In the aviation industry, carbon fiber reinforced plastics (CFRP) are used as a standard material. Due to the high strength-to-weight ratio, weight can be saved and the fuel consumption, for example of airplanes or cars, can be reduced. More and more thermoplastics are used as matrix materials, because they enable new production and repair processes. In order to reduce repair costs, an automated, reliable and fast process is needed. For the repair of CFRP with polyamide 6 (PA6) matrix material, a laser-based ablation process for the removal of the damaged material and a laser welding process for the refill of the scarf with a patch are being developed. The ablation of the scarf and the cutting of the patch are conducted with a high power nanosecond pulsed laser, which has a maximum power of PL = 1500 W and emits at a wavelength of= 1030 nm. For the joining process, an automatically controlled heat conduction welding process is developed. Therefore, a diode laser with a maximum average power of PL = 300 W and a wavelength of= 940 nm is utilized. For the analysis of the ablation and cutting process, samples were analyzed in order to determine the heat affected zone. For the evaluation of the welding process, overlap samples were welded and tested to determine the weld seam strength. In addition, cross sections were prepared and analyzed for defects. Finally, the results were correlated in order to determine a high process quality.
Keywords
- CFRP, heat conduction welding, laser welding, PA6, repair, thermoplastic
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XI. SPIE, 2022. 119940C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11994).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Laser-based repair of carbon fiber reinforced polymers with polyamide 6 matrix material
AU - Hirt, S.
AU - Wippo, V.
AU - Geiger, M.
AU - Jaeschke, P.
AU - Kaierle, S.
AU - Overmeyer, L.
N1 - Funding Information: The authors would like to thank the Federal Ministry for Economic Affairs and Energy (BMWI) for funding these investigations within the project HyPatchRepair (20E1721B) of the German federal aeronautical research program. Funding Information: The authors would like to thank TRUMPF Laser GmbH for providing the thindisc laser source.
PY - 2022/3/4
Y1 - 2022/3/4
N2 - In the aviation industry, carbon fiber reinforced plastics (CFRP) are used as a standard material. Due to the high strength-to-weight ratio, weight can be saved and the fuel consumption, for example of airplanes or cars, can be reduced. More and more thermoplastics are used as matrix materials, because they enable new production and repair processes. In order to reduce repair costs, an automated, reliable and fast process is needed. For the repair of CFRP with polyamide 6 (PA6) matrix material, a laser-based ablation process for the removal of the damaged material and a laser welding process for the refill of the scarf with a patch are being developed. The ablation of the scarf and the cutting of the patch are conducted with a high power nanosecond pulsed laser, which has a maximum power of PL = 1500 W and emits at a wavelength of= 1030 nm. For the joining process, an automatically controlled heat conduction welding process is developed. Therefore, a diode laser with a maximum average power of PL = 300 W and a wavelength of= 940 nm is utilized. For the analysis of the ablation and cutting process, samples were analyzed in order to determine the heat affected zone. For the evaluation of the welding process, overlap samples were welded and tested to determine the weld seam strength. In addition, cross sections were prepared and analyzed for defects. Finally, the results were correlated in order to determine a high process quality.
AB - In the aviation industry, carbon fiber reinforced plastics (CFRP) are used as a standard material. Due to the high strength-to-weight ratio, weight can be saved and the fuel consumption, for example of airplanes or cars, can be reduced. More and more thermoplastics are used as matrix materials, because they enable new production and repair processes. In order to reduce repair costs, an automated, reliable and fast process is needed. For the repair of CFRP with polyamide 6 (PA6) matrix material, a laser-based ablation process for the removal of the damaged material and a laser welding process for the refill of the scarf with a patch are being developed. The ablation of the scarf and the cutting of the patch are conducted with a high power nanosecond pulsed laser, which has a maximum power of PL = 1500 W and emits at a wavelength of= 1030 nm. For the joining process, an automatically controlled heat conduction welding process is developed. Therefore, a diode laser with a maximum average power of PL = 300 W and a wavelength of= 940 nm is utilized. For the analysis of the ablation and cutting process, samples were analyzed in order to determine the heat affected zone. For the evaluation of the welding process, overlap samples were welded and tested to determine the weld seam strength. In addition, cross sections were prepared and analyzed for defects. Finally, the results were correlated in order to determine a high process quality.
KW - CFRP
KW - heat conduction welding
KW - laser welding
KW - PA6
KW - repair
KW - thermoplastic
UR - http://www.scopus.com/inward/record.url?scp=85131226084&partnerID=8YFLogxK
U2 - 10.1117/12.2605977
DO - 10.1117/12.2605977
M3 - Conference contribution
AN - SCOPUS:85131226084
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XI
PB - SPIE
T2 - High-Power Laser Materials Processing
Y2 - 20 February 2022 through 24 February 2022
ER -