Details
| Original language | English |
|---|---|
| Pages (from-to) | 1279-1288 |
| Number of pages | 10 |
| Journal | Physics Procedia |
| Volume | 83 |
| Publication status | Published - 16 Sept 2016 |
| Event | 9th International Conference on Photonic Technologies, LANE 2016 - Fürth, Germany Duration: 19 Sept 2016 → 22 Sept 2016 |
Abstract
A double-scan-head was developed combining two pairs of galvo-mirrors into one device. One pair controls the laser beam's position, while the other in this setup is used for a pyrometer. Thus, a pyrometer's optical path can be controlled independently from a laser's path as well as being locked to the same geometrical path during CFRP processing. Using such a double-scan-head, a comparison between locked pyrometry and independent scanning pyrometry is performed during multi-pass laser cutting on multiple geometries. Carbon fibre reinforced epoxy and PPS are cut with pre-selected threshold surface temperatures ranging from T = 80-120°C to interrupt and optimise the process in order to reduce the material's thermal strain. Both locked and scanning pyrometry are compared based on total processing time, heat affected zone, and the influence of fibre orientation. The study shows a double-scan-head allows improved process monitoring strategies leading towards more efficient laser material processing in terms of quality and time.
Keywords
- fibre orientation, HAZ, laser cutting, process control, pyrometry
ASJC Scopus subject areas
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In: Physics Procedia, Vol. 83, 16.09.2016, p. 1279-1288.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Optimising process efficiency during remote laser cutting of CFRP by utilisation of a double-scan-head
AU - Dittmar, Hagen
AU - Herda, Patrick
AU - Jäschke, Peter
AU - Suttmann, Oliver
AU - Overmeyer, Ludger
PY - 2016/9/16
Y1 - 2016/9/16
N2 - A double-scan-head was developed combining two pairs of galvo-mirrors into one device. One pair controls the laser beam's position, while the other in this setup is used for a pyrometer. Thus, a pyrometer's optical path can be controlled independently from a laser's path as well as being locked to the same geometrical path during CFRP processing. Using such a double-scan-head, a comparison between locked pyrometry and independent scanning pyrometry is performed during multi-pass laser cutting on multiple geometries. Carbon fibre reinforced epoxy and PPS are cut with pre-selected threshold surface temperatures ranging from T = 80-120°C to interrupt and optimise the process in order to reduce the material's thermal strain. Both locked and scanning pyrometry are compared based on total processing time, heat affected zone, and the influence of fibre orientation. The study shows a double-scan-head allows improved process monitoring strategies leading towards more efficient laser material processing in terms of quality and time.
AB - A double-scan-head was developed combining two pairs of galvo-mirrors into one device. One pair controls the laser beam's position, while the other in this setup is used for a pyrometer. Thus, a pyrometer's optical path can be controlled independently from a laser's path as well as being locked to the same geometrical path during CFRP processing. Using such a double-scan-head, a comparison between locked pyrometry and independent scanning pyrometry is performed during multi-pass laser cutting on multiple geometries. Carbon fibre reinforced epoxy and PPS are cut with pre-selected threshold surface temperatures ranging from T = 80-120°C to interrupt and optimise the process in order to reduce the material's thermal strain. Both locked and scanning pyrometry are compared based on total processing time, heat affected zone, and the influence of fibre orientation. The study shows a double-scan-head allows improved process monitoring strategies leading towards more efficient laser material processing in terms of quality and time.
KW - fibre orientation
KW - HAZ
KW - laser cutting
KW - process control
KW - pyrometry
UR - http://www.scopus.com/inward/record.url?scp=84993982731&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2016.08.135
DO - 10.1016/j.phpro.2016.08.135
M3 - Conference article
AN - SCOPUS:84993982731
VL - 83
SP - 1279
EP - 1288
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3884
T2 - 9th International Conference on Photonic Technologies, LANE 2016
Y2 - 19 September 2016 through 22 September 2016
ER -