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Accurate separation of open cell metal foams using remote laser cutting technique

Wednesday (24.10.2018)
19:51 - 19:54
Part of:
- Poster Battery housings for electric vehicles using CFRP and aluminium foam 0 Joachim Baumeister
- Poster Manufacturing and characterization of open-cell stainless steel foams by investment casting 1 Jan Frömert
- Poster Interface formation of Mg2X (X = Si, Sn) in cellular Si infiltrated by Mg(Sn) alloys 1 Alexander M. Matz
- Poster Production of microcellular PMMA using the bead foaming technology 1 Mikel Mugica
- Poster Nanocellular PMMA with tunable cellular structure by changing the rheological behaviour of the polymer matrix. 1 Judith Martín de León
- Poster Production of thermoplastic polyurethane foams synthesized with different contents of hard segment and graphene nanoplatelets by the gas dissolution foaming process 1 Ph.D. Mercedes Santiago-Calvo
- Poster Surface functionalized filters for aluminum melt filtration 1 Dr.-Ing. Claudia Voigt
- Poster Nanocellular polymers based on PMMA/sepiolite nanocomposites: characterization of the mechanical behaviour 1 Victoria Bernardo
- Poster Impact resistant foams based on PP/POE blends 1 Ph.D. Santiago Munoz Pascual
- Poster Crosslinked open cell ethylene butyl acrylate copolymer (EBA) foams: properties and applications 1 Ph.D. Eduardo López
- Poster Influence of molecular weight in the solubility,diffusivity and the subsequent cellular structure of polystyrene foams 1 Ph.D. Alberto Ballesteros
- Poster Crushing strength measurement at reticulated ceramic foams ex situ and in situ CT analysis 1 Dr.-Ing. Claudia Voigt
- Poster Initiation of plateau region during compression test of porous metals with aligned unidirectional pores 1 Tomoya Tamai
- Poster Active meta-materials with adjustable pore size 1 Dr. Reza Hedayati
- Poster Polymeric foams 3D numerical mechanical modelling 1 Stefano Tagliabue
- Poster Characterisation of NiTi cellular materials fabricated by the powder-metallurgy spaceholder technique 1 Dr. Karl Dahm
- Poster Accurate separation of open cell metal foams using remote laser cutting technique 1 Robert Baumann
- Poster Generation of artificial foam structures and evaluation of their thermo-mechanical, flow and filtration characteristics (Poster) 1 Christoph Settgast
- Poster Surface modification of magnesium-based foams by Directed Plasma Nanosynthesis 1 Viviana Marcela Posada Pérez

General Topic P: Postersession
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One major key theme in modern industry applications is light weight design [1]. For new materials, innovative production processes has to be devised in order to increase the throughput as well as flexibility and decrease the costs. Traditional cutting techniques such as milling and grinding depict a slow cutting speed and lead to unfavorable surface defects [2, 3]. These defects interfere with the provided properties of the foam material. Therefore, an alternative separation technology has to be applied in order to overcome these challenges. In case of open cell metal foams, laser technology plays a leading role in manufacturing processes, specifically in the event of separation and contouring. Remote laser cutting delivers solutions to the upcoming challenges concerning contour flexibility, component accuracy, high material throughput and decreased thermally affected zone. This study reveals the high potential concerning cutting speed of nickel base foam, which was increased more than 500 % compare to the state of the art laser cutting processes. In addition, foam components show a perpendicular edge and an open cell behavior after the separation process. Due to the physical principle of remote laser cutting, melt attachments were smaller than 10 µm in diameter. Moreover, the contour accuracy reaches process tolerances of less than 50 µm. This enables the remote laser cutting to produce foam components with industrial specifications. This poster offers insight into the viability of remote laser cutting of nickel based open cell foams for chemical applications.

Robert Baumann
Fraunhofer Institute for Material and Beam Technology IWS Dresden