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.

Fig. 1. Elastic modulus and tensile strength of PA12

 Source: University of Duisburg-Essen; graphic:  © Hanser

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

Polyamide

Kunststoff Werkstoffe

Thermoplaste

Oberflächentechnik

Selektives Lasersintern von Kunststoff, Metall, Keramik

Verfahren für die additive Fertigung

Pulverbettverfahren

Additive Fertigung

Geometry-Independent Surface Finishing

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.

Thermal analysis of the deposited plastic strand in the large-format, extruder-based 3D printing process

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

Anlagen Additive Fertigung / 3D-Druck, Kunststoff

Anlagen für die Additive Fertigung

Granulate

Andere Werkstoffe

Werkstoffe für additive Verfahren

Extruder

Kunststoffverarbeitung: Maschinen und Komponenten

Extrusionsanlagen

Large but still Economical

Würth Additive Group is now a partner for the distribution of the Freeformer in the USA and Canada.

“The Freeformer and APF process allow us to open up completely new possibilities in the field of industrial additive manufacturing,” said AJ Strandquist, chief executive officer for Würth Additive Group.

16:9

Spritzgießen

Kunststoffverarbeitung: Verfahren

Machines for the USA and Canada

German Scientists want to develop an app for automatic monitoring of print quality in additive manufacturing at batch size 1.

Quality monitoring: the scientists will attach sensors to the printer to detect faults such as a clogged print head

Künstliche Intelligenz für die Qualitätssicherung

Industrie 4.0

Industrie 4.0 für die Qualitätssicherung

Qualitätssicherung

Technik Trend

kunststoffe.de

Ensuring Quality in 3D Printing

Both companies aim to open up market access to new large-scale industrial applications in the higher temperature range.

Component made from Evonik’s Infinam PA 6005 P material and produced on a Farsoon system

Evonik and Farsoon Strengthen Collaboration

Prizes worth over EUR 70.000 await the winners of the 3D Pioneers Challenge. The tension rises: who will win the limited 3DPC Design-Trophy?

The tension rises: who will win the limited 3DPC Design-Trophy?

Verbände, Institutionen, Messen

Dienstleistungen

43 Finalists Convince the Jury

The theme for this year’s “purmundus challenge” international competition for design in 3D and 4D printing is “Innovation in progress”. Deadline for submissions is on 22 September 2021.

Purmundus challenge will be held for the ninth time in 2021. The finalists will be presented at a special exhibition at the Formnext trade fair in Frankfurt/Main, Germany

Messe formnext

form-werkzeug.de

Design Competition for 3D and 4D Printing

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.

The 3D-printable filament can be used, for example, for implants or hearing aids

Polyetherketon

Kunststoff

Bauwesen

Baustoffe

Hochleistungskunststoffe

Biocompatible and Easy to Process PEEK

IPH and LZH are jointly developing an expert system for laser transmission welding of additively manufactured plastic components.

3D-printed sample component : the so-called transmissivity, i. e. the light transmission, varies depending on the layer thickness and layer orientation

kunststoffe-international.com

Laserschweißen

Verbindungstechnik Verfahren

Thermisches Fügeverfahren

Joining 3D-Printed Components

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.

The combination of recyclates and virgin material reduces the<sub> </sub>carbon footprint of the polycarbonate and still allows it to be extruded into filaments

Technische Kunststoffe

Filamente für additive Verfahren

Polycarbonat

Kunststoff-Rezyklat

Water Bottles Become Filaments

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.

This newly developed rotor blade is especially suited for weak-wind regions and adapts independently to the wind load

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

Glasfasern / -matten

Verstärkungsstoffe

Faserverarbeitung

Simulation Produkt- / Formteildesign

Software

Simulation

Verbundwerkstoffe / Werkstoffverbunde

Finite Methoden

Ingenieurwissenschaften

Technische Mechanik

Harze, Epoxid

Duroplaste

Windkraft

Energieerzeugung

Erneuerbare Energie

Analysetools, FEM

Faserverbundwerkstoffe

Highly Efficient Adaptive  Fiber-Composite Rotor Blades

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.

As a temperature-resistant and flame-retardant material with high mechanical properties, PA66 opens up new application possibilities for laser sintering, such as its use as a sensor holder

PA66 and PBT for Laser Sintering

Polybutylenterephthalat

From Injection Molding to  Additive Manufacturing

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.

The extrusion line to manufacture powder for selective laser sintering of plastics is in the Paderborn University laboratory

Research Project to Manufacture Powder for Selective Laser Sintering of Plastics

Compoundieren

Kunststoff-Aufbereitung

Perfectly Round

EnvisionTEC and Covestro collaborate on material and printer solutions to accelerate adoption of industrial 3D printing.

EnvisionTEC and Covestro collaborate on material and printer solutions to accelerate adoption of industrial 3D printing

Harze

Collaboration of EnvisionTEC and Covestro

Production is becoming ever more flexible, diversified and decentralized. Without doubt, additive manufacturing processes make a crucial contribution to this, also initiating the transformation from production-based design to design-driven production. In this article, the 3D printing service provider FIT outlines a best-practice panorama of current technologies.

The biggest ever 3D-printed lattice structure was assembled along over 2000 precisely fitting joints into an 8 m-high retable

What Additive Plastic Manufacturing Can Do. The View of a Full-Service Provider

Anlagen für die Stereolithografie, Kunststoff

Anlagen Selektives Lasersintern, Kunststoff

3D-Druck-Anlage, pulverbettbasiert, Metall

Anlagen Additive Fertigung / 3D-Druck, Metall

SLA (Stereolithografie) Kunststoff

Flüssigmaterialverfahren

3D-Druck-Anlage, strahlbasiert, Metall

3D-Drucker (für FDM, FFF, etc.)

Fused Deposition Modeling Kunststoff, Glas, Karbon, Metall

Freiraumverfahren

Finer, Bigger, Faster

Maquinser becomes the first supplier of Sintratec´s modular SLS solutions on the Iberian Peninsula.

Maquinser becomes the first supplier of Sintratec´s modular SLS solutions on the Iberian Peninsula, expanding Sintratec‘s distribution and service network in the Mediterranean region.

Headquartered in the region of Barcelona, Maquinser S.A. has more than three decades of experience in the distribution of machine tools and high-tech equipment and works with leading brands such as HP, Matsuura, or GE Additive. The company offers a wide range of industrial solutions, including turning and milling, horizontal machining, additive manufacturing multifunction machinery. With a large network of service centers in the main areas of the Iberian Peninsula, Maquinser further ensures efficient support and customer proximity.

The partnership with Sintratec expands Maquinser‘s product range with the Sintratec All-Material Platform (AMP) – a modular 3D printing system that sets new standards for material diversity, flexibility and scalability in the field of selective laser sintering (SLS). Maquinser thus becomes the first Sintratec representative in Spain and Portugal and is already presenting the Swiss SLS technology at the Advanced Machine Tools trade show in Barcelona in April. For Sintratec, this partnership means a valuable expansion of its Southern European distribution and service network as well as an entry into the emerging Iberian market.

Sintratec AG  

https://www.sintratec.com

Anton Bravo Ribó (left), 3D Manager Maquinser, Joan Jubany, Marketing Maquinser: „Adding Sintratec to our represented brands allows us to expand our value chain to a wide range of companies, covering all their production and quality needs.“

2023-04-26 Sintratec

issue 08/2023

issue 07/2023

issue 06/2023

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