Details
| Original language | English |
|---|---|
| Pages (from-to) | 425-429 |
| Number of pages | 5 |
| Journal | Procedia CIRP |
| Volume | 74 |
| Publication status | Published - 3 Sept 2018 |
| Externally published | Yes |
| Event | 10th CIRP Conference on Photonic Technologies, LANE 2018 - Furth, Germany Duration: 3 Sept 2018 → 6 Sept 2018 |
Abstract
Hazardous substances such as unexploded ordnance represent a serious threat. It is necessary to develop new methods and equipment for their elimination. For this reason, a laser ablation process is developed where the shell of the objects are weakened in a defined manner to reduce the threat to the environment. This article shows how 25 mm thick steel sheets can be weakened with ablation rates of more than 3000 mm3/min and achieved ablation depths of more than 15 mm by means of an adapted process strategy and an off-axis process gas control. Despite the high incoming process energy, it is ensured that there is no danger to affect the hazardous substances. A critical temperature of 300 °C is not exceeded at the rear surface of the sheet metal.
Keywords
- High speed ablation, Laser ablation, Macro metal weakening, Thick metal processing
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 74, 03.09.2018, p. 425-429.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Weakening of thick steel plates by laser radiation for the removal of hazardous substances
AU - Hoff, Christian
AU - Hermsdorf, Jörg
AU - Kaierle, Stefan
AU - Overmeyer, Ludger
N1 - Funding information: The project underlying this report was funded by the German Federal Ministry of Education and Research under founding reference 13N14155. The authors thank for the support.
PY - 2018/9/3
Y1 - 2018/9/3
N2 - Hazardous substances such as unexploded ordnance represent a serious threat. It is necessary to develop new methods and equipment for their elimination. For this reason, a laser ablation process is developed where the shell of the objects are weakened in a defined manner to reduce the threat to the environment. This article shows how 25 mm thick steel sheets can be weakened with ablation rates of more than 3000 mm3/min and achieved ablation depths of more than 15 mm by means of an adapted process strategy and an off-axis process gas control. Despite the high incoming process energy, it is ensured that there is no danger to affect the hazardous substances. A critical temperature of 300 °C is not exceeded at the rear surface of the sheet metal.
AB - Hazardous substances such as unexploded ordnance represent a serious threat. It is necessary to develop new methods and equipment for their elimination. For this reason, a laser ablation process is developed where the shell of the objects are weakened in a defined manner to reduce the threat to the environment. This article shows how 25 mm thick steel sheets can be weakened with ablation rates of more than 3000 mm3/min and achieved ablation depths of more than 15 mm by means of an adapted process strategy and an off-axis process gas control. Despite the high incoming process energy, it is ensured that there is no danger to affect the hazardous substances. A critical temperature of 300 °C is not exceeded at the rear surface of the sheet metal.
KW - High speed ablation
KW - Laser ablation
KW - Macro metal weakening
KW - Thick metal processing
UR - http://www.scopus.com/inward/record.url?scp=85057408987&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2018.08.166
DO - 10.1016/j.procir.2018.08.166
M3 - Conference article
AN - SCOPUS:85057408987
VL - 74
SP - 425
EP - 429
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
T2 - 10th CIRP Conference on Photonic Technologies, LANE 2018
Y2 - 3 September 2018 through 6 September 2018
ER -