Details
| Original language | English |
|---|---|
| Title of host publication | ECCM 2016 |
| Subtitle of host publication | Proceeding of the 17th European Conference on Composite Materials |
| ISBN (electronic) | 9783000533877 |
| Publication status | Published - 2016 |
| Externally published | Yes |
| Event | 17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany Duration: 26 Jun 2016 → 30 Jun 2016 |
Publication series
| Name | ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials |
|---|
Abstract
This paper focusses on different fixture and cooling options and investigates their impact on the thermal load during laser processing of CFRP using a continuously emitting high-power solid state laser. Various combinations between fixtures, cooling options and process parameters were used. These options included cooling by pressurized air flow or water spraying when using uncooled fixtures with spacing under the CFRP plate. Another option included air flow or water spraying using water cooled fixtures with direct planar contact to the CFRP surface. The surface temperatures were monitored by thermography during the cutting process, serving as an indicator for the effectiveness of the cooling options. The HAZ of selected cross-section specimens was measured, supporting the evaluation process of the cooling effectiveness. The results revealed a distinct reduction in the surface temperatures when applying gas flow cooling compared to the absence of any cooling, while the effect of an additional water spray becomes apparent especially for an enhanced water flow. The highest heat dissipation was achieved by using a water cooled fixture. This effective cooling option enables the reduction of typically necessary delay times thus leading to higher process efficiency at a constantly low thermal load.
Keywords
- Cooling, Fixture, Laser cutting, Thermography, Thermoplastic CFRP
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
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ECCM 2016: Proceeding of the 17th European Conference on Composite Materials. 2016. (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - The impact of cooling strategies and fixture options on the thermal load during laser processing of carbon fibre reinforced thermoplastics
AU - Staehr, R.
AU - Lindner, Julia
AU - Bluemel, S.
AU - Meier, Oliver
AU - Jaeschke, P.
AU - Suttmann, Oliver
AU - Overmeyer, Ludger
N1 - Funding information: The authors would like to thank the German Federal Ministry of Education and Research (BMBF) for funding these investigations within the project Co-Compact (Eurostars Ref: E!7500, FKZ:01QE1232B und FKZ:01QE1232A) and the German Aerospace Center (DLR e.V.) for their support.
PY - 2016
Y1 - 2016
N2 - This paper focusses on different fixture and cooling options and investigates their impact on the thermal load during laser processing of CFRP using a continuously emitting high-power solid state laser. Various combinations between fixtures, cooling options and process parameters were used. These options included cooling by pressurized air flow or water spraying when using uncooled fixtures with spacing under the CFRP plate. Another option included air flow or water spraying using water cooled fixtures with direct planar contact to the CFRP surface. The surface temperatures were monitored by thermography during the cutting process, serving as an indicator for the effectiveness of the cooling options. The HAZ of selected cross-section specimens was measured, supporting the evaluation process of the cooling effectiveness. The results revealed a distinct reduction in the surface temperatures when applying gas flow cooling compared to the absence of any cooling, while the effect of an additional water spray becomes apparent especially for an enhanced water flow. The highest heat dissipation was achieved by using a water cooled fixture. This effective cooling option enables the reduction of typically necessary delay times thus leading to higher process efficiency at a constantly low thermal load.
AB - This paper focusses on different fixture and cooling options and investigates their impact on the thermal load during laser processing of CFRP using a continuously emitting high-power solid state laser. Various combinations between fixtures, cooling options and process parameters were used. These options included cooling by pressurized air flow or water spraying when using uncooled fixtures with spacing under the CFRP plate. Another option included air flow or water spraying using water cooled fixtures with direct planar contact to the CFRP surface. The surface temperatures were monitored by thermography during the cutting process, serving as an indicator for the effectiveness of the cooling options. The HAZ of selected cross-section specimens was measured, supporting the evaluation process of the cooling effectiveness. The results revealed a distinct reduction in the surface temperatures when applying gas flow cooling compared to the absence of any cooling, while the effect of an additional water spray becomes apparent especially for an enhanced water flow. The highest heat dissipation was achieved by using a water cooled fixture. This effective cooling option enables the reduction of typically necessary delay times thus leading to higher process efficiency at a constantly low thermal load.
KW - Cooling
KW - Fixture
KW - Laser cutting
KW - Thermography
KW - Thermoplastic CFRP
UR - http://www.scopus.com/inward/record.url?scp=85018537731&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85018537731
T3 - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
BT - ECCM 2016
T2 - 17th European Conference on Composite Materials, ECCM 2016
Y2 - 26 June 2016 through 30 June 2016
ER -