Project Details
Projekt
Laser Direct Energy Deposition System
Subject Area
Materials Engineering
Term
Funded in 2025
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 547272909
Multifunctional structures and components are designed to fulfill various functions (e.g. stiffness, protection or self-monitoring) while considering constraints like available design space. The objective is to simultaneously fulfill various, even conflicting requirements such as high performance, material or energy efficiency. In this context, additive manufacturing enables new design options and a function-specific customisation of components. For example, it allows different materials to be used within a single component. In Laser Directed Energy Deposition (L-DED), components are manufactured by the simultaneous supply of energy and material. A laser beam is used to create a molten pool on the surface and powdered material is deposited. By adding different materials, the composition can be successively varied so that graded materials can be produced. The aim of the SFB/Transregio 375, in which the proposed Major Research Instrumentation will be used (100% usage share), is to research multifunctional high-performance components made of hybrid and hybrid porous (HyPo) materials. For this purpose, the proposed Major Research Instrumentation will be used to additively apply graded material layers to metallic and hybrid metallic foams. This will make it possible to produce material systems with locally customisable material properties that are not yet available. These offer the potential for significant weight savings, a reduction of inertia and optimisation of component functionality. In the future, components made from HyPo materials will make a significant contribution to resource-efficient and environmentally friendly products and manufacturing processes. The production, design and characterisation of graded material layers on porous and hybrid porous materials using Laser Metal Deposition has not yet been researched and is a core part of the TRR 375. For the use of the Major Research Instrumentation within the TRR 375, the proposed L-DED system allows the material composition to be changed during the process. A system with four powder lines is required for the simultaneous supply of different materials. In addition, the system must allow access to the control and measurement variables of the machine control system. In this way, a new type of path planning and control for the production of HyPo components can be explored and implemented.
DFG Programme
Major Research Instrumentation
Major Instrumentation
Laserauftragschweißanlage
Instrumentation Group
5740 Laser in der Fertigung
Applicant Institution
Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
