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Material Extrusion-Based Additive Manufacturing for Ceramics Using Thermoplastic Feedstocks

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Additive Manufacturing (AM) has been accepted by industry for shaping ceramics with complex structuresor structures where a significant amount of material has to be removed by commercial subtractionmanufacturing processes. Nowadays, AM can also be used for the fabrication of parts with multi ceramicmaterials. Material Extrusion-Based AM (MEX-AM) represents a group of shaping methods where a … Weiterlesen …

CIM Blocks Ensure Fast Production of Prototypes

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The ever-growing ceramic injection moulding market is demanding the production of a continuous flowof new sample parts small quantities of prototypes from green compacts. Meeting this challenge byconstructing completely new and hence costly prototype moulds time and time again is anything buteconomical. It made sense, then, to find and implement an alternative to this conventional … Weiterlesen …

3D Screen Printing of Solar Absorbers Made of SiSiC, Sintered in an Efficient High-Performance Furnace

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New manufacturing methods like 3D screen printing allow for the development of new unique designswith optimized features. In the present paper the core component of the central receiver system in solarthermal power plants like the Solar Tower Jülich – the porous absorber structure – was optimized. Thelayer-wise printing process allows for the adjustment of form … Weiterlesen …

Opportunities and Challenges of Ceramic Additive Manufacturing for Restoration of Historic Porcelain Artifacts

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Three different Additive Manufacturing (AM) methods for ceramics (CerAM VPP, CerAM FFF and CerAM PBF) and traditional slip casting in 3D-printed plaster moulds have been investigated concerning their suitability for making components of traditional porcelain with special focus on restoration of historically valuable porcelain artifacts from the 18th and 19th century. For that purpose, fragments … Weiterlesen …

Powder- and Suspension-Based Additive Manufacturing of Hardmetals

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Additive Manufacturing (AM) is one of the most promising developments currently underway within different kind of industries. It promises new products and applications for the industry and end consumers. However, many different technologies with different names already exist, leading often to confusion due to the use of different names for similar techniques. The Fraunhofer Institute … Weiterlesen …

Multimaterial Components by Material Extrusion-Fused Filament Fabrication (ME-FFF) – Production of an Infrared Heater

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Fused Filament Fabrication (FFF) is a type of Material Extrusion (ME) Additive Manufacturing (AM) and it is one of the most commonly used polymer-based AM techniques. FFF could also be used to produce green parts with complex geometry out of feedstocks and after debinding and sintering a full metal or ceramic part is obtained. FFF … Weiterlesen …

Strength Optimisation of a Zirconia-Ceramic Made Using Additive Manufacturing (LCM)-Technology

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Additive Manufacturing (AM) is a new method for the production of ceramic components. It enables the processing of complex ceramic components with very little limitations. To establish new process routes and to get specimens and components having a high strength, it is necessary to optimize the whole manufacturing process. In this work, the influence of … Weiterlesen …

Additive Manufacturing of Ceramics by Composite Microextrusion

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A concept for Additive Manufacturing (AM) of ceramics by a modified Fused Deposition Modeling (FDM) process is presented. Instead of feeding a 3D-printer with a prefabricated filament, the feedstock consists of a ceramic powder/polymer composite granulate. The granulates are fed to a pressure and temperature controlled twin screw extruder where the material is extruded continuously … Weiterlesen …