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To extend the range of polymer powders for selective laser sintering, Paderborn University in collaboration with the Maag Group has developed an extrusion line that can produce round particles with good flowability.

Research Project to Manufacture Powder for Selective Laser Sintering of Plastics

Selektives Lasersintern von Kunststoff, Metall, Keramik

Additive Fertigung

Compoundieren

Perfectly Round

PA66 and PBT considerably expand the field of applications for laser sintering by showing better properties than classic PA11 and PA12 materials in most cases.

PA66 and PBT for Laser Sintering

Polybutylenterephthalat

Polyamide

Kunststoff Werkstoffe

Technische Kunststoffe

Kunststoff

From Injection Molding to  Additive Manufacturing

Polymaker will offer the Polymaker PC-r 3D printing filament made from recycled polycarbonate (PC). The PC for the filaments comes from materials supplier Covestro and consists of a combination of recycled plastic waste and virgin material.

Filamente für additive Verfahren

Polycarbonat

Kunststoff-Rezyklat

Water Bottles Become Filaments

Before the direct extrusion of profiles made of polyvinyl chloride was developed, it was previously necessary to produce a dry blend. This process is expensive and energy-intensive and, in contrast to direct extrusion, discontinuous. The direct extrusion of PVC using planetary roller extruders promises an improvement. In addition to soft PVC, rigid PVC can also be processed in this way with a few adjustments.

Extrusion of Rigid PVC without Dry Blend Production

PVC-Profile

Kunststoff-Profile

Granulat, PVC- (Compound)

Kunststoff-Halbzeuge

Polyvinylchlorid

Rohr- und Profilextrusion

Extrusionsanlagen

Kunststoffverarbeitung: Verfahren

Direct Route to the PVC Profile

Currently, small wind turbines can hardly be operated profitably in landlocked regions. This drawback has now been overcome by the partners EAB Gebäudetechnik Luckau GmbH and the Chair of Polymer-based Lightweight Design at the BTU Cottbus-Senftenberg: passive smartblades made from 3D-printed molds adapt independently to wind conditions. This is achieved by an intelligent layer structure and its bending-torsion-coupling.

Additive Manufacture of FRP Injection Molds for FRP Components of Small Wind Turbines

Glasfasern / -matten

Faserverarbeitung

Simulation Produkt- / Formteildesign

Verbundwerkstoffe / Werkstoffverbunde

Finite Methoden

Harze, Epoxid

Windkraft

Analysetools, FEM

Faserverbundwerkstoffe

Highly Efficient Adaptive  Fiber-Composite Rotor Blades

Evonik has introduced a PEEK for FFF and FDM printers. The material was developed specifically for medical technology applications such as prostheses, surgical instruments and hearing aids.

Polyetherketon

Hochleistungskunststoffe

Werkstoffe für additive Verfahren

Biocompatible and Easy to Process PEEK

With the anniversary motto „Next 75“, the Heilbronn-based mechanical engineering company is consciously looking ahead to extend its market leadership in the decades to come.

Anlagen Lebensmittel

Warmformen / Thermoformen

Thermoformwerkzeuge

Thermoformanlagen

Verpackungsmaschinen

Illig Sustainably Shapes the Future

In many technical applications, laser-sintered components still have inadequate surface topology. New methods of cost-effective and geometry-independent surface finishing of the laser-sintered specimens are therefore needed.

Influence of Chemical Post-Treatment on Glass-Filled Polyamide 12 Samples

Oberflächentechnik

Geometry-Independent Surface Finishing

When printing high-performance polymers such as PEEK, stresses occur in the component due to the relatively high printing temperature and the changes in the material structure. In the Smart Printbed project, a system was developed to minimize these stresses and also save electrical energy.

Thermal Management Plays a Crucial Role in 3D Printing of High-Performance Thermoplastics

Verfahren für die additive Fertigung

Thermoplaste

Targeted Heating of  High-Performance Polymers

In a joint project, the Fraunhofer Plastics Technology Center Oberlausitz, the University of Zittau/Görlitz, KraussMaffei and Elbe Flugzeugwerke, have enhanced an extruder-based method for additive manufacturing of large-format plastic parts using a flexible melt pipe.

An Alternative Approach to Large-Format 3D Printing with Plastic

Anlagen Additive Fertigung / 3D-Druck, Kunststoff

Granulate

Extruder

Large but still Economical

A new series of extremely soft TPEs have a soft surface similar to human skin.

Kraiburg TPE Presents Its Next Generation Supersoft TPEs

Thermoplastische Elastomere

For Extremely Soft Applications

Combining additive manufacturing with a digital, simulation-based design process makes it possible to develop even highly complex extrusion dies in a time-saving and economical manner. Experts from the Eastern Switzerland University of Applied Sciences and ETH Zurich have successfully applied this technique using the example of a novel co-extrusion die.

Additive Manufacturing and Simulation-Based Design as a Duo for Extrusion Dies

Extrusionswerkzeuge

Rethinking Co-Extrusion

Fiber-reinforced plastic components, including those for load-bearing areas, are established alternatives to metals in vehicle construction. It is not just their low specific weight that makes them interesting, but also their acoustic properties, which reduce noise transmission.

3D Printing Shortens Development Times for Load-Bearing Parts under the Hood

Spritzgießsimulation

Functional Prototypes for  Car Components

Additive manufacturing processes count as future-oriented manufacturing techniques. Numerous studies and award-winning demonstrators underline the interest of the industry.

Plastic-Metal Hybrid Cuts Costs and Time in Additive Manufacturing

Anlagen Additive Fertigung / 3D-Druck, andere

Bleche, Bänder

Verbindungstechnik, hybride

3D Printing with Pellet Extruded Plastics on Metal

What AM technology is considered capable of today and how it can be applied in many areas of application is shown (representative) by this expert’s view of medical technology.

Status and Perspectives for Human Medicine

Anlagen für die Additive Fertigung

Medizintechnik

Anlagen Additive Fertigung / 3D-Druck, Metall

Medical Applications of Additive Manufacturing

Marbling is often a real eye-catcher in plastic components. However, the effect is difficult to create and there are some pitfalls when it comes to reproducibility. Novel nozzles for injection molding machines in combination with a special dosing technology allow marbled molded parts to be produced far more easily in a much more robust process.

A 3D-Printed Nozzle and Modified Dosing Method Deliver Reproducible Marbling  in a Robust Process

Spritzgießen

Spritzgießwerkzeuge

Farben, flüssig

Exciting Design instead of  Exciting Manufacturing

Hybrid production chains have been increasingly in the spotlight in recent years. This also applies to the combination of conventional manufacturing and additive processes in tool construction. With the example of an injection molding tool, it is shown how mold inserts produced by additive manufacturing can greatly shorten cycle times, and thereby significantly reduce unit costs. The important thing is to find a suitable combination of processes from the variety available.

Additive Manufacturing and Hybrid Molds in Combination with Conventional Machining

HSC- / HPC-Bearbeitung

Werkzeugkonstruktion

The Potential of Redesign and  Part Consolidation

Arburg Plastic Freeforming is predestined for the additive manufacturing of medtech components. The associated Freeformer-type additive manufacturing systems process the same plastic pellets that are used in injection molding. That makes the open systems very economical to use.

Medical Product Manufacturers Are Processing Original Materials Using the Freeformer

Biokunststoffe

Medizinprodukte

Arburg Kunststoff Freiformen

New Possibilities for Use  in the Human Body

In no other field the possibilities and advantages of 3D printing are more pronounced than for medical devices. With the right high-performance materials, complex patient-customized implants can be produced that medical doctors are using to push the boundaries of the possible – for the benefit of patients.

New Ways for Production of Plastic Implants by 3D Printing

Custom Implants from the 3D Printer

Searching for the right adhesive is a very complex process. The wide range of manufacturers and products makes it hard to keep track. Users can find a suitable adhesive more easily and quickly with the Substratec search engine. Further functions have now been added to this search engine.

Online Tool for an Easier Adhesive Search

Beschichten von Kunststoffen

Streifinger, Florian

Beschichtungen

Klebstoffe

Quick Way to Find the Right Adhesive

For the Institute of Plastics Processing (IKV) at the RWTH Aachen University, Germany, 2020 is an anniversary year in three different ways. The RWTH Aachen University is celebrating its 150th anniversary, and is marking the occasion, by hosting the International Colloquium of Plastics Technology for the 30th time – with special feature on the previous day. A preview of the celebrations.

A Varied Menu

Doriat, Clemens, Dr.

Temperiertechnik

Künstliche Intelligenz für die Qualitätssicherung

Reason to Celebrate 30th International Colloquium of Plastics Technology and  70 Years of the IKV

Shape-changing structures (smart structures) are able to change their shape in response to external stimuli. The change of shape is self-induced and requires no artificial energy input. In view of the increasing demand for efficiency and resource conservation, shape-changing (smart) materials offer a sensible approach to integrating functionalities into a component without giving rise to additional energy and material costs. Even greater sustainability is achieved if the components are produced from bioplastics.

Bioplastics for Shape-Changing Structures

Polylactid

Green Shape Changers

In order to minimize the development time for new products, Geberit International AG manufactures many prototypes using 3D printing. Since 2016, the Swiss company uses a Sintratec S1 for design optimization and material testing in its prototyping laboratory. A visit to Switzerland.

Geberit: „Selective Laser Sintering Really Sparks our Imagination“

Anlagen Selektives Lasersintern, Kunststoff

Rapid Prototyping

Sanitary Prototypes with  High Requirements