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Fraunhofer ICT-IMM and its services in the field of Chemical Micro Process Engineering
All activities are dedicated to the optimisation or reinvention of chemical production processes by methods and components of chemical micro process technology.
Offered services:
Development, realisation and provision of components and plants
Microreactors for lab scale & for pilot and production scale
Specialised micro structured apparatuses
Individual small scale plants
Process development up to piloting and production (focus on organic chemistry)
Example 1: Compact cylindrical microstructured devices- Tubular Heat Transfer Micro Device First contact! - First microstructure-bearing metallic (stainless steel)
component of Fraunhofer ICT-IMM realised by additive manufacturing
Tubular Heat Transfer Micro Device (THTMD)
„conventional“ device
3D printed device
“Conventional” device realised in several steps using costly manufacturing technology
Simplification of realisation
Positive experience regular consideration of additive manufacturing also for the realisation of structured, metallic components
wire spark erosionlaser welding
Why additive manufacturing?0.3 mm x 1.2 mm x 100 mm
Cost considerations Example: microreactor module in two scales
About 0.2 L reaction volume & about 2.3 L reaction volume
Considered cases:
Additive manufacturing
Plate stack: plate structuring by roll embossing, brazing
Plate stack: plate structuring by wet chemical etching, brazing Allgemeine Annahmen: Fertigung von 1 Stück, ohne Deckel und Anschlüsse, ohne Konstruktion, etc.
Pilot-scaleIndustrial-
scale
Walzen, löten 1,5 3,6 Annahme: Walzen und Walzstraße vorhanden
Ätzen, löten 1,0 3,2
Selektives Laserschmelzen (3D-Drucken)
1,3 10,0Annahme f. Industrial-scale: Extrapolation aus vorhandenen Angeboten, kann ggf. erheblich
günstiger werden
Fertigungsverfahren Bemerkungen:Reaktorgröße
Anmerkung: Die Variante "Walzen" bestehen aus viel mehr Einzelteilen, das bedeutet mehr manuellen Montageaufwand
Efforts and know-how required to adopt the design according to SLM manufacturing
For higher piece numbers (serial production) typically no dramatic decrease of price per piece (no typical economy of scale). Then again competition with conventional approaches
Smaller structures limited by layer thickness, melting process and surface roughness.
Interaction with external service providers needed, e.g. exchange of CAM files
Limited control over the manufacturing process (e.g. part orientation during fabrication)
Siehe auch zum Vergleich: DECHEMA / Praxisforum – 2015: White Paper: Die 7 Mythen der Additiven Fertigung