Achtung:

Sie haben Javascript deaktiviert!
Sie haben versucht eine Funktion zu nutzen, die nur mit Javascript möglich ist. Um sämtliche Funktionalitäten unserer Internetseite zu nutzen, aktivieren Sie bitte Javascript in Ihrem Browser.

Lattice structure tensile specimen manufactured with laser melting (LM) process out of the material H13. Show image information
Industry partners of the DMRC Show image information
Industry partners of the DMRC Show image information
Quality control during a Laser Sinter (LS) build job by a researcher of the DMRC Show image information
Fused Deposition Modeling (FDM) process during the manufacture of an Ultem 9085 part Show image information
Additive manufactured reaction wheel bracket for telecomunication satellites Show image information
Employees of the DMRC working with the "freeformer" from Arburg Show image information
Tactile measurement of a SLM part with a Coordinatemeasuring machine (CMM) Show image information
Powder particles are used as raw material for laser-based additive manufacturing Show image information

Lattice structure tensile specimen manufactured with laser melting (LM) process out of the material H13.

Industry partners of the DMRC

Industry partners of the DMRC

Quality control during a Laser Sinter (LS) build job by a researcher of the DMRC

Fused Deposition Modeling (FDM) process during the manufacture of an Ultem 9085 part

Additive manufactured reaction wheel bracket for telecomunication satellites

Employees of the DMRC working with the "freeformer" from Arburg

Tactile measurement of a SLM part with a Coordinatemeasuring machine (CMM)

Powder particles are used as raw material for laser-based additive manufacturing

Internal projects until 2016

Internal projects are initiated, controlled and carried out in very close cooperation with the industrial partners of the DMRC. The industrial partners of the DMRC finance the internal projects and benefit significantly from the results. In these projects until the end of 2016, industrial companies benefited in particular from special support from the state of North Rhine-Westphalia.

Advanced AM Material and Part Properties – Reduced Refresh Rates and Cooling Process Regarding Laser Sintering

The project deals with the recycling optimized material PA 2221, especially its ageing behavior and resulting powder and part properties. Another focus is on the cooling process of the powder cake, which is currently not known well. Therefore, a temperature measurement system is implemented within a laser sintering system. In addition, the cooling process is simulated as basis for future process optimizations.

Additive Manufactured Function Integrated Damping Structures

Integration of damping functions into existing components via additive manufacturing processes.

Analysis of the FDM Part Quality manufactured with ABS with the Focus on the Toy Industry

The aim of this project is to establish a database that is necessary for the direct manufacturing of parts via the Fused Deposition Modeling in the toy industry with the material ABS. For this, not only the strength properties and the influencing parameters on the strengths have to be worked out, but a knowledge of possible surface finishing methods is also needed in order to create a component that meets the given requirements. Another very important topic is the dimensional accuracy of the parts. A very high fitting accuracy is necessary in some applications. This research project is divided into three work packages. First the mechanical strengths are analyzed, then the surface characteristics in combination with the dimensional accuracy of FDM components manufactured with the material ABS are investigated experimentally.

Development of an Additive Manufacturing Potential Check System

The project DynAMiCS aims at developing an adaptive check system in order to check for (1) broad potentials, (2) products and services and (3) business models related to Additive Manufacturing. The goal is enabling the DMRC to convey its competences to the industry in a pragmatic fashion. In the context of this project, the fifth sequel of the study “Thinking Ahead the Future of Additive Manufacturing” is going to be composed.

Development of a Strategy for the DMRC

Goal of the project is a strategy allowing the DMRC to become a leading institution in Additive Manufacturing. A strategy is a guideline for daily operations along the way towards a visionary future. It contains a mission statement, core competencies and strategic positions. Defined measures and consequences will help the DMRC to implement the strategy. In the context of this project, the fourth sequel of the study “Thinking Ahead the Future of Additive Manufacturing” is going to be released.

Dimensional Tolerances for Additive Manufacturing

The project “Dimensional Tolerances for Additive Manufacturing” (DT-AM) has two different aims. The first aim is the systematically determination of dimensional tolerances that can be stated if the processes Laser Sintering, Laser Melting and Fused Deposition Modeling are workshop-commonly used. Secondly, relevant process parameters and manufacturing influences will be optimized in order to reduce dimensional deviations.

Direct Manufacturing Design Rules

Additive manufacturing processes create parts layer by layer without using formative tools. Hence, they have a great potential to provide new design freedoms to their users. To publish these freedoms and to support a suitable design for manufacturing, design rules for additive manufacturing are required. However, profound knowledge about such rules is not completely given at time. Thus, the Direct Manufacturing Design Rules (DMDR) project had the objective to develop design rules for additive manufacturing.

Direct Manufacturing Design Rules 2.0

The project Direct Manufacturing Design Rules 2.0 (DMDR2.0) has the aim to extend the range of validity for design rules that have been developed previously. Therefore, it will be investigated if and how far the design rules are applicable for different boundary conditions given by different materials, parameters and machines. The additive manufacturing processes laser sintering, laser melting and fused deposition modeling will be considered.

Fatigue Behavior of FDM and LS Parts

The application of additive manufactured end-use parts requires detailed information regarding mechanical properties, e.g., static strength properties. In many applications, changing load conditions occur, so components burdened not only static but increasingly dynamic. In this project, dynamical values of LS parts build with PA 12 as well as FDM parts build with Ultem 1010 and Ultem 9085 will be carried out. Additionally, the creep behavior of FDM parts will be analyzed.

Fatigue Life Manipulation

The main goal of the project “Fatigue Life Manipulation” is to extend the total life time of components. Using intrinsic advantages of additive manufacturing processes, notched parts will be produced in order to manipulate the fatigue life. It is expected that due to changes in stress distribution caused by the notch forms, notch sizes and notch orientations the crack growth behavior will be influenced.

Light-weight construction: Robust simulation of complex loaded cellular structures

A robust Finite Element Analysis (FEA) model for complex loaded cellular light-weight structures will be the aim of the present project. Based on the findings of a preliminary linear elastic simulation the examinations will be extended to linear-plastic deformation behavior including several materials e.g. 316L stainless steel (ductile) and Ti-6Al-4V alloy (brittle). The cellular structures tested will be manufactured by Laser Sintering (LS) in order to verify the developed FEA model.

Surface Topography Analysis and Enhancement of Laser Sintered Parts

To quantitatively assess the surface quality of laser sintered parts a reliable characterization method will be developed. This method serves as analyzing tool for the surface quality of laser sintered parts depending on different machine parameters in order to describe the correlation between machine settings and surface quality. Further work will cover post processing methods to improve the surface finish with reasonable effort in terms of costs and labor.

TPE-A Laser Sintering Material and Part Properties

This project examines PrimePart ST, a polyamide-based thermoplastic elastomer (TPE-A). Unlike established laser sintering materials, this new material is very elastic. This project aims at examining various material and part properties to help with its qualification for future application.

The University for the Information Society