Generative Manufacturing of Optical, Thermal and Structural Components (GROTESK)

The book describes and explains the results of the collaborative project Generative Manufacturing of Optical, Thermal and Structural Components over the last three years. The overall goal is the development of a system concept based on generative manufacturing for integrated optical and optomechanical systems. Different developed generative manufacturing processes for glass and specially designed metal powders have been implemented in a single fabrication set up enabling multi-material manufacturing of optical components and systems. The main focus of the project is split into several topics: simulation, design, material engineering, process engineering, post-processing and component evaluation. The simulation of the glass printing process will be structured iteratively with a comparison of the experimental results in order to be able to finally make a prediction of the necessary parameter sizes for defined components. A metal material with similar thermal conductivity and thermal expansion properties to glass or laser-active crystals has been developed iteratively over the course of the project to enable direct printing onto these materials. In order to demonstrate the potential of generatively manufactured optomechanics for function-integrated systems, the optomechanical components required for a solid-state laser system are manufactured in a polymer-based 3D printing process and their properties are characterized. All these individual projects of the overall network are combined in the system concept.

Auteur

Prof. Dr.-Ing. Roland Lachmayer, Leibniz University Hannover, Institute of Product Development, An der Universität 1, 30823 Garbsen. Dr. Dietmar Kracht, Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover Prof. Dr.-Ing. Volker Wesling, Clausthal Centre for Material Technology, Leibnizstr. 9, 38678 Clausthal-Zellerfeld Prof. Dr.-Ing. Henning Ahlers, University of Applied Science and Arts Hannover, Ricklinger Stadtweg 120, 30459 Hannover

Contenu

Introduction to additive manufacturing.- Additive manufacturing of glass materials for the production of functional optical systems.- Simulation of additive manufactured optomechatronic systems.- Additive manufactured optomechanics based on polymers for the usage in laser systems.- Molybdenum Copper MMC for Additive Manufacturing of Optical, Thermal and Structural Components.- Additive Manufacturing of Optical Thermal and Structural Components by Laser Metal Deposition.- System technology for coaxial laser deposition welding of optical, thermal and structural components.- Conclusion.