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Improving component cleanliness during laser remote ablation processes with high-power lasers by optimized emission blower and suction strategies

 
: Schiefer, Tom; Sauer, Martin; Klotzbach, Annett; Schade, Elke; Wöllner, Michelle; Mäder, Gerrit; Leupolt, Beate; Standfuß, Jens; Kaskel, Stefan

Wissenschaftliche Gesellschaft Lasertechnik -WLT-:
Lasers in Manufacturing, LiM 2019 : Munich, Germany, June 24-27, 2019; Proceedings; World of Photonics Congress
Munich, 2019
Art. 275, 7 pp.
Lasers in Manufacturing Conference (LiM) <2019, Munich>
World of Photonics Congress <2019, Munich>
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)
IGF; 19239BR; CleanRemote
English
Conference Paper
Fraunhofer IWS ()
Laser surface pre-treatment; particle analysis; joining; Occupational Safety

Abstract
Laser remote processing with high-performance laser sources enables materials such as metals or fiber composites to be cut, welded or ablated flexibly and quickly. All these manufacturing processes produce process and material specific particulate as well as gaseous emissions. This must be recorded quantitatively and qualitatively in order to implement appropriate protective measures with regard to occupational health and safety as well as to minimize the crosscontamination of the component to be treated. Ideally, an additional cleaning step should be avoided by optimizing the arrangement of the process suction and blower. Particle distributions as well as gas phase analyses during the remote ablation process were recorded during ablation tests on metals or carbon-based composites. The structure quality and the contamination of the sample surface after laser material processing as well as after the additional cleaning process were determined. Subsequently, the samples were thermally joined to evaluate the influences.

: http://publica.fraunhofer.de/documents/N-552279.html